SUNNY BOY 3000TL / 3600TL / 4000TL / 5000TL
Contents
1. lid Service Manual SB3 5TL 2 1 SG en 10 23 7 Checking the Function of the Varistors SMA Solar Technology AG 4 Position the insertion tool in the clamping contacts of the connecting terminal plate 5 Remove the varistor from the connecting terminal plate 6 Use a multimeter to measure whether there is a conductive connection between the upper and the middle varistor lead recommends replacing all varistors immediately e Order new varistors and insertion tools fromSMA Solar Technology AG e f new varistors are available replace all varistors see Section 8 page 25 If a conductive connection is present contact the SMA Service Line 24 SB3 5TL 2 1 SG en 10 Service Manual SMA Solar Technology AG 8 Replacing the Varistors 8 Replacing the Varistors Disconnect the inverter from all voltage sources see Section 2 3 page 9 DANGER Danger to life due to high voltages Wait five minutes before opening the upper enclosure lid Loosen the screws of the upper enclosure lid using an Allen key AF 4 and remove the enclosure lid Position the insertion tool in the clamping contacts of the connecting terminal plate Remove the varistor from the connecting terminal plate Insert the new varistor into the terminal The labeling on the varistor must point left to the enclosure Remove the insertion tool from the clamping contacts of the connecting terminal plate Position the up2. 2 Service Manual SUNNY BOY 3000TL 3600TL 4000TL 5000TL SB3 5TL 2 1 SG en 10 Version 1 0 AMERICAN ENGLISH Legal Provisions SMA Solar Technology AG Legal Provisions The information contained in these documents is property of SMA Solar Technology AG Any publication whether in whole or in part requires prior written approval by SMA Solar Technology AG Internal reproduction used solely for the purpose of product evaluation or other proper use is allowed and does not require prior approval SMA Warranty You can download the current warranty conditions from the Internet at www SMA Solar com Trademarks All trademarks are recognized even if not explicitly identified as such A lack of identification does not mean that a product or symbol is not trademarked The Bluetooth word mark and logos are registered trademarks owned by Bluetooth SIG Inc and any use of these marks by SMA Solar Technology AG is under license QR Code is a registered trademark of DENSO WAVE INCORPORATED SMA Solar Technology AG Sonnenallee 1 34266 Niestetal Germany Tel 49 561 9522 0 Fax 49 561 9522 100 www SMA de E mail info SMA de 2004 to 2013 SMA Solar Technology AG All rights reserved 2 SB3 5TL 21 SG en 10 Service Manual SMA Solar Technology AG Table of Contents Table of Contents 1 Information on this Document rrrrrrerererreeezicesezeoneneoe 5 Sri 7 2 1 Skills of Qualified Persons
3. Corrective measures Clean the cooling fins on the rear of the enclosure and the air ducts on the top using a soft brush Ensure that the inverter has sufficient ventilation Disturbance sensor display temperature The cause must be determined by the SMA Service Line Corrective measures Contact the SMA Service Line SD card defective The SD card is not formatted Corrective measures Reformat the SD card e Resave the files to the SD card Parameter file not found or defective The parameter file was not found or is defective The update failed The inverter continues feeding power into the grid Corrective measures Copy the parameter file to the directory PARASET on the SD card drive Param setting failed It was not possible to set the parameter via the SD card The inverter continues feeding power into the grid Corrective measures Check the parameters for valid values Ensure change rights via SMA Grid Guard code Update file defect Update file on the SD card is faulty Corrective measures e Reformat the SD card Resave the files to the SD card No update file found No update file has been found Corrective measures Copy the update file in the SD card folder Select the folder NUPDATE SB3 5TL 2 1 SG en 10 17 A Error Messages Event number 7201 to 7202 7303 7305 7307 7311 7401 7508 SMA Solar Technology AG Display message cause and corrective meas
4. 7 22 Sale Precautions ie 2 2 3 Disconnecting the Inverter from Voltage Sources 9 9 Cleaningthe lnverter uan 11 4 Error Messages sila 12 5 Checking the ESS for Wear iier 20 6 Checking the PV System for Ground Faults 21 7 Checking the Function of the Varistors 23 8 Replacing the Varistors aa 25 gt E 26 Service Manual SB3 5TL 2 1 SG en 10 3 Table of Contents SMA Solar Technology AG 4 SB3 5TL 2 1 SG en 10 Service Manual SMA Solar Technology AG 1 Information on this Document 1 Information on this Document This document describes how to rectify certain errors and how to replace defective components This document is a supplement to the documentation that is provided with each product It does not replace any locally applicable standards or directives Read and observe all documentation supplied with the product Validity This document is valid for the following device types from firmware version 2 55 e SB 3000TL21 Sunny Boy 3000TL e SB 3600TL21 Sunny Boy 3600TL e SB 40001121 Sunny Boy 4000TL e SB 5000TL21 Sunny Boy 5000TL Target Group This document is intended for qualified persons Only qualified persons are allowed to perform the tasks described in this manual see Section 2 1 Skills of Qualified Persons page 7 Symbols Symbol Explanation DANGER Indicates a hazardous sit
5. the type label the display and the LEDs using only clean water and a cloth 8 SB3 5TL 21 SG en 10 Service Manual SMA Solar Technology AG 2 Safety 2 3 Disconnecting the Inverter from Voltage Sources A QUALIFIED PERSON Prior to performing any work on the inverter always disconnect it from all voltage sources as described in this section NOTICE Damage to the seal of the enclosure lids during sub zero conditions IF you open the upper and lower enclosure lid during sub zero conditions the sealing of the enclosure can be damaged Moisture can penetrate the inverter Only open the inverter when the ambient temperature is at least 5 C e If a layer of ice has formed on the seal of the lid in sub zero conditions remove it prior to opening the enclosure lids of the inverter e g by melting the ice with warm air Observe the corresponding safety regulations NOTICE Destruction of the measuring device due to overvoltage Only use measuring devices with a DC input voltage range up to 1 000 V Procedure 1 Disconnect the circuit breaker and secure against reconnection 2 If an external DC load break switch is available switch off the DC load break switch and secure against reconnection 3 If an ESS is plugged in remove the ESS If a multifunction relay is used switch off the load supply voltage 5 Wait until the LEDs display and if necessary the load connected to the multifunction relay are switched of
6. Ensure that the circuit breaker is switched on Ensure that the AC cable is not damaged Ensure that the AC cable is correctly connected e Check whether the line voltage at the connection point of the inverter is permanently in the permissible range IF the line voltage is outside the permissible range due to local grid conditions contact the grid operator The grid operator must agree with an adjustment of the voltage at the feed in point or with a change of the monitored operating limits If the line voltage is permanently within the permissible range and this message is still displayed contact the SMA Service Line 12 SB3 5TL 21 SG en 10 Service Manual SMA Solar Technology AG A Error Messages Event number 301 401 501 601 Service Manual Display message cause and corrective measures Grid fault The ten minute average line voltage is no longer within the permissible range The line voltage or grid impedance at the connection point is too high The inverter disconnects from the utility grid to comply with the power quality Corrective measures e Check whether the line voltage at the connection point of the inverter is permanently in the permissible range If the line voltage is outside the permissible range due to local grid conditions contact the grid operator The grid operator must agree with an adjustment of the voltage at the feed in point or with a change of the monitored operating limits If th
7. fault The example shows a ground fault between the second and third PV module V 200 300 100V 100 ni 100V 100V 100V 3 Commission the inverter see inverter documentation 22 SB3 5TL 21 SG en 10 Service Manual SMA Solar Technology AG 7 Checking the Function of the Varistors 7 Checking the Function of the Varistors 7 KJ KJ KJ eo e AJ KJ A le AT A7 A Figure 1 Varistors inside the inverter If the inverter displays event number 7401 one of the varistors is probably defective Check the function of each varistor as described below NOTICE Destruction of the inverter due to overvoltage If varistors are missing the inverter is no longer protected against overvoltage Do not operate the inverter without varistors in PV systems with a high risk of overvoltages Do not recommission the inverter until the defective varistors have been replaced NOTICE Destruction of the measuring device due to overvoltage Only use measuring devices with a DC input voltage range up to 1 000 V Procedure 1 Disconnect the inverter from all voltage sources see Section 2 3 Disconnecting the Inverter from Voltage Sources page 9 2 Wy Nd Danger to life due to high voltages Wait five minutes before opening the upper enclosure lid 3 Loosen the screws of the upper enclosure lid using an Allen key AF 4 and remove the enclosure
8. 8669 Pty Ltd International 27 12 643 1785 Centurion Pretoria SMA Solar UK Ltd 44 1908 304899 Milton Keynes SMA Hellas AE 801 222 9 222 AOnva International 30 212 222 9 222 EX A a SB3 5TL 2 1 SG en 10 27 9 Contact SMA Solar Technology AG Ine SMA Solar Thailand Co Ltd 66 2 670 6999 NINN CH SEDI SMA Technology Korea Co Ltd 82 2 508 8599 FH Eg SMA Beijing Commercial Company 86 10 5670 1350 Ltd ACR 971 2 698 5080 SMA Middle East LLC ca Ley pn P As yell Other countries International SMA Service Line Toll free worldwide 00800 SMA SERVICE 28 Niestetal 800 762 7378423 SB3 5TL 2 1 SG en 10 Service Manual SMA Solar Technology
9. al 61 2 9491 4200 32 15 286 730 420 235 010 417 Medium Power Solutions Wechselrichter 49 561 9522 1499 Kommunikation 49 561 9522 2499 SMS mit R ckruf 49 176 888 222 44 Hybrid Energy Solutions Sunny Island 49 561 9522 399 Power Plant Solutions Sunny Central 49 561 9522 299 Llamada gratuita en Espa a 900 14 22 22 Internacional 34 902 14 24 24 Service Manual SMA Solar Technology AG France India ltalien Kuttpoc Kibris Luxemburg Luxembourg Magyarorsz g Nederland Osterreich Peru Polska Portugal Rom nia Schweiz Slovensko South Africa United Kingdom Edad Service Manual 9 Contact SMA France S A S Medium Power Solutions Lyon Onduleurs 33 472 09 04 40 Communication 33 472 09 OA 41 Hybrid Energy Solutions Sunny Island 33 472 09 04 42 Power Plant Solutions Sunny Central 33 472 09 04 43 SMA Solar India Pvt Ltd 91 22 61713888 Mumbai SMA Italia S r l Milano BA rre Bkz EAAdda Yunanistan 39 02 8934 7299 Siehe Belgien Voir Belgique l sd Cesko Csehorsz g zie Belgien Belgi amp Siehe Deutschland Ver Espana Patrz Cesko Czechy Isento de taxas em Portugal 800 20 89 87 Internacional 351 212377860 SMA Solar Technology Portugal Unipessoal Lda Lisboa Vezi Cesko Cehia Siehe Deutschland pozri Cesko Cesk republika SMA Solar Technology South Africa 08600 SUNNY 08600 7
10. cleaning agents e If the inverter is dirty clean the enclosure the cooling fins the enclosure lid the type label the display and the LEDs using only clean water and a cloth e Ifthe cooling fins on the rear of the enclosure are dirty clean them using a soft brush e Ifthe air ducts on the top of the inverter are dirty clean them using a soft brush Service Manual SB3 5TL 21 SG en 10 11 A Error Messages SMA Solar Technology AG 4 Error Messages Event number 101 to 103 202 to 203 205 Display message cause and corrective measures Grid fault The line voltage or grid impedance at the connection point of the inverter is too high The inverter has disconnected from the utility grid Corrective measures Check whether the line voltage at the connection point of the inverter is permanently in the permissible range If the line voltage is outside the permissible range due to local grid conditions contact the grid operator The grid operator must agree with an adjustment of the voltage at the feed in point or with a change of the monitored operating limits If the line voltage is permanently within the permissible range and this message is still displayed contact the SMA Service Line Grid fault The utility grid has been disconnected the AC cable is damaged or the line voltage at the connection point of the inverter is too low The inverter has disconnected from the utility grid Corrective measures
11. ctly Check the setting of the rotary switches A and B or select the operating parameter Set country standard and check the value 14 SB3 5TL 2 1 SG en 10 Service Manual SMA Solar Technology AG A Error Messages Event number 3301 to 3303 3304 3401 to 3402 3501 Service Manual Display message cause and corrective measures Unstable operation The ten minute average line voltage is no longer within the permissible range The line voltage or grid impedance at the connection point is too high The inverter disconnects from the utility grid to comply with the power quality Corrective measures Check whether the line voltage at the connection point of the inverter is permanently in the permissible range If the line voltage is outside the permissible range due to local grid conditions contact the grid operator The grid operator must agree with an adjustment of the voltage at the feed in point or with a change of the monitored operating limits If the line voltage is permanently within the permissible range and this message is still displayed contact the SMA Service Line Gen output too low The DC output of the PV array is too low The inverter cannot connect to the utility grid Corrective measures Wait for higher irradiation e If this message is displayed frequently with medium irradiation ensure that the PV system is correctly rated and the PV array correctly wired DC overvoltage gt Disconnect generator Ov
12. e line voltage is permanently within the permissible range and this message is still displayed contact the SMA Service Line Grid fault The inverter is no longer in grid parallel operation The inverter has stopped feeding into the utility grid Corrective measures e Check the grid connection for significant short term frequency fluctuations Grid fault The power frequency is not within the permissible range The inverter has disconnected from the utility grid Corrective measures If possible check the power frequency and observe how often fluctuations occur If fluctuations occur frequently and this message is displayed often contact the grid operator and request permission to change the operating parameters of the inverter If the grid operator gives his approval discuss any changes to the operating parameters with the SMA Service Line Grid fault The inverter has detected an excessively high proportion of direct current in the line current Corrective measures Check the grid connection for direct current e If this message is displayed frequently contact the grid operator and check whether the monitoring limiting value on the inverter can be raised SB3 5TL 2 1 SG en 10 13 A Error Messages Event number 701 801 901 1001 1501 SMA Solar Technology AG Display message cause and corrective measures Frq not permitted gt Check parameter The power frequency is not within the per
13. ervoltage at DC input This can destroy the inverter This message is additionally highlighted by rapid flashing of the backlight Corrective measures Immediately disconnect the inverter from all voltage sources see Section 2 3 page 9 Check whether the DC voltage is below the maximum input voltage of the inverter If the DC voltage is below the maximum input voltage of the inverter reconnect the DC connectors to the inverter e If the DC voltage is above the maximum input voltage of the inverter ensure that the PV array has been correctly rated or contact the installer of the PV array e f this message is repeated frequently contact the SMA Service Line Insulation failure gt Check generator The inverter has detected a ground fault in the PV array Corrective measures e Check the PV system for ground faults see service manual at www SMA Solar com SB3 5TL 2 1 SG en 10 15 A Error Messages Event number 3601 3701 3801 to 3802 3901 to 3902 6001 to 6438 SMA Solar Technology AG Display message cause and corrective measures High discharge curr gt Check generator The leakage current of the inverter and the PV array is too high There is a ground fault a residual current or a malfunction The inverter interrupts feed in operation immediately after exceeding a limiting value When the fault is eliminated the inverter automatically reconnects to the utility grid Corrective measures e Check
14. f 6 Use a current clamp to ensure that no current is present in the DC cables 7 Remove all six screws of the lower enclosure lid using an Allen key AF 3 and remove the enclosure lid Service Manual SB3 5TL 2 1 SG en 10 9 2 Safety SMA Solar Technology AG Unlock and remove all DC connectors Insert a slotted screwdriver or an angled screwdriver blade width 3 5 mm into one of the slide slots and pull the DC connectors out downwards Do not pull on the cable o Ensure that no voltage is present at the DC inputs of the inverter Ensure that no voltage is present between L and N and L and PE on the AC connecting terminal plate using a suitable measuring device Insert the test probe maximum diameter 2 mm in each round opening of the terminal Flip the display up to have more space to make the measurement Loosen the screw on the display to do this M The display clicks into place Ensure that there is no voltage between any terminal of the multifunction relay and PE of the AC connecting terminal plate NOTICE Damage to the inverter due to electrostatic discharge The internal components of the inverter can be irreparably damaged by electrostatic discharge Ground yourself before touching any components SB3 5TL 2 1 SG en 10 Service Manual SMA Solar Technology AG 3 Cleaning the Inverter 3 Cleaning the Inverter NOTICE Damage to the display or the type label due to the use of
15. king the PV System for Ground Faults If the inverter displays the event numbers 3501 3601 or 3701 there could be a ground fault The electrical insulation from the PV system to ground is defective or insufficient NOTICE Destruction of the measuring device due to overvoltage Only use measuring devices with a DC input voltage range up to 1 000 V Proceed as follows to check each string in the PV system for ground faults Procedure 1 RON Danger to life due to high voltages Disconnect the inverter from all voltage sources see Section 2 3 page 9 2 Measure the voltages Measure the voltages between the positive terminal and the ground potential PE Measure the voltages between the negative terminal and the ground potential PE Measure the voltages between the positive and negative terminals IF the following results are present at the same time there is a ground fault in the PV system All measured voltages are stable The sum of the two voltages to ground potential is approximately equal to the voltage between the positive and negative terminals Determine the location of the ground fault via the ratio of the two measured voltages Eliminate the ground fault If there is no ground fault and the message is still displayed contact the SMA Service Line Service Manual SB3 5TL 21 SG en 10 21 6 Checking the PV System for Ground Faults SMA Solar Technology AG Example Location of the ground
16. missible range The inverter has disconnected from the utility grid Corrective measures If possible check the power frequency and observe how often fluctuations occur If fluctuations occur frequently and this message is displayed often contact the grid operator and request permission to change the operating parameters of the inverter If the grid operator gives his approval discuss any changes to the operating parameters with the SMA Service Line Waiting for grid voltage gt Grid failure gt Check fuse The AC cable is not correctly connected or the country data set is not correctly configured Corrective measures Ensure that the AC cable is correctly connected see operating manual of the inverter Ensure that the country data set has been configured correctly Check the fuse PE conn missing gt Check connection PE is not correctly connected Corrective measures Ensure that PE is correctly connected see operating manual of the inverter L N swapped Check connection The connection of L and N is swapped Corrective measures e Ensure that Land are correctly connected see operating manual of the inverter Reconnection fault grid The changed country data set or the value of an operating parameter you have set does not correspond to the local requirements The inverter cannot connect to the utility grid Corrective measures Ensure that the country data set has been configured corre
17. nology AG A DANGER Danger to life due to electric shock Touching an ungrounded PV module or an array frame can cause a fatal electric shock Connect and ground the PV modules array frame and electrically conductive surfaces so that there is continuous conduction Observe the applicable local regulations WARNING Risk of burns due to hot enclosure parts Some parts of the enclosure can get hot during operation e Do not touch any parts other than the lower enclosure lid of the inverter during operation NOTICE Damage to the seal of the enclosure lids during sub zero conditions If you open the upper and lower enclosure lid during sub zero conditions the sealing of the enclosure can be damaged Moisture can penetrate the inverter Only open the inverter when the ambient temperature is at least 5 C If a layer of ice has formed on the seal of the lid in sub zero conditions remove it prior to opening the enclosure lids of the inverter e g by melting the ice with warm air Observe the corresponding safety regulations NOTICE Damage to the inverter due to electrostatic discharge Touching electronic components can cause damage to or destroy the inverter through electrostatic discharge Ground yourself before touching any components NOTICE Damage to the display or the type label due to the use of cleaning agents e If the inverter is dirty clean the enclosure the cooling fins the enclosure lid
18. per enclosure lid with the five screws and conical spring washers on the enclosure and tighten it using an Allen key AF 4 in the order 1 to 5 torque 6 Nm 0 3 Nm The toothing of the conical spring washers must point towards the enclosure lid Recommission the inverter see inverter installation manual Service Manual SB3 5TL 2 1 SG en 10 25 9 Contact 9 Contact SMA Solar Technology AG If you have technical problems concerning our products contact the SMA Service Line We need the following information in order to provide you with the necessary assistance Inverter device type e Inverter serial number e Inverter firmware version Special country specific settings of the inverter if applicable Type and number of PV modules connected Mounting location and mounting altitude of the inverter Three digit or four digit event number and display message of the inverter Optional equipment e g communication products Use of the multifunction relay if present Australia SMA Australia Pty Ltd Sydney Belgien SMA Benelux BVBA SPRL Belgique Mecheln Belgi Brasil Vide Espafia Espanha Cesko SMA Central amp Eastern Europe s r o Praha Chile Ver Espana Danmark Se Deutschland Tyskland Deutschland Solar Technology AG Niestetal Espa a SMA Ib rica Tecnolog a Solar S L U Barcelona 26 SB3 5TL 2 1 SG en 10 Toll free for Australia 1800 SMA AUS 1800 762 287 Internation
19. the PV system for ground faults see service manual at www SMA Solar com Resid curr too high gt Check generator The inverter has detected a residual current due to temporary grounding of the PV array Corrective measures e Check the PV system for ground faults see service manual at www SMA Solar com DC overcurrent gt Check generator Overcurrent at the DC input The inverter briefly interrupts feed in Corrective measures e f this message is displayed frequently ensure that the PV array has been correctly rated and wired Waiting for DC start conditions gt Start cond not met The feed in conditions for the utility grid have not been met Corrective measures Wait for higher irradiation e If this message is displayed frequently in the morning increase the voltage limit for starting feed in Change the parameter Critical voltage to start feed in e If this message is displayed frequently with medium irradiation ensure that the PV array is correctly rated Self diagnosis gt Interference device The cause must be determined by the SMA Service Line Corrective measures Contact the SMA Service Line 16 SB3 5TL 2 1 SG en 10 Service Manual SMA Solar Technology AG A Error Messages Event number 6501 to 6502 7008 7101 7102 7105 7106 7110 Service Manual Display message cause and corrective measures Self diagnosis gt Overtemperature The inverter has switched off due to excessive temperatures
20. ting occurred The inverter has reduced its power output for more than ten minutes due to excessive temperature Corrective measures Clean the cooling fins on the rear of the enclosure and the air ducts on the top using a soft brush Ensure that the inverter has sufficient ventilation No display The cause must be determined by the SMA Service Line Corrective measures e Contact the SMA Service Line Changing grid param not possible gt Ensure DC supply This error can have the following causes The selected rotary switch setting for the country configuration is not programmed The parameters to be changed are protected The DC voltage at the DC input is not sufficient to run the main CPU Corrective measures Ensure that the country data set has been configured correctly Enter the SMA Grid Guard code Ensure that sufficient DC voltage is available green LED glowing or flashing SB3 5TL 2 1 SG en 10 19 5 Checking the ESS for Wear SMA Solar Technology AG 5 Checking the ESS for Wear 1 Disconnect the inverter from all voltage sources see Section 2 3 page 9 2 Check the metal mounting tabs inside the ESS for discoloration or damage If the metal mounting tabs show brown discoloration or are damaged order a new ESS from SMA Solar Technology AG and have the ESS replaced 20 SB3 5TL 2 1 SG en 10 Service Manual SMA Solar Technology AG 6 Checking the PV System for Ground Faults 6 Chec
21. uation which if not avoided will result in death or serious injury A WARNING Indicates a hazardous situation which if not avoided can result in death or serious injury A CAUTION Indicates a hazardous situation which if not avoided can result in minor or moderate injury NOTICE Indicates a situation which if not avoided can result in property damage Information that is important for a specific topic or goal but is not 9 safety relevant OD Indicates a requirement for meeting a specific goal M Desired result x A problem that could occur Service Manual SB3 5TL 2 1 SG en 10 5 1 Information on this Document SMA Solar Technology AG Nomenclature Complete designation Designation in this document Electronic Solar Switch ESS SMA Bluetooth Wireless Technology Bluetooth Sunny Boy Inverter product 6 SB3 5TL 21 SG en 10 Service Manual SMA Solar Technology AG 2 Safety 2 Safety 21 Skills of Qualified Persons Only qualified persons are allowed to perform the tasks marked in this document with a warning symbol and the caption Qualified person Qualified persons must have the following skills Knowledge of how an inverter works and is operated Training in how to deal with the dangers and risks associated with installing and using electrical devices and systems Training in the installation and commissioning of electrical devices and systems Knowledge of the applicable standards and directi
22. ures Data stor not poss Internal error The inverter continues to feed into the utility grid Corrective measures Contact the SMA Service Line Update main CPU failed The cause must be determined by the SMA Service Line Corrective measures Contact the SMA Service Line Update RS4851 module failed Internal error The inverter continues to feed into the utility grid Corrective measures Retry update e f this message is displayed again contact the SMA Service Line Update BT failed Internal error The inverter continues to feed into the utility grid Corrective measures Retry update e f this message is displayed again contact the SMA Service Line Update language table failed Internal error The inverter continues to feed into the utility grid Corrective measures Retry update e If this message is displayed again contact SMA Service Line Varistor defective At least one of the thermally monitored varistors is defective Corrective measures Check the function of the varistors see service manual at www SMA Solar com External fan fault The external fan is defective or blocked Corrective measures Ensure that the fan is clean Ensure that the external fan is correctly connected 18 SB3 5TL 2 1 SG en 10 Service Manual SMA Solar Technology AG 4 Error Messages Event number 8001 8801 to 8803 9005 Service Manual Display message cause and corrective measures Dera
23. ves Knowledge of and adherence to this document and all safety precautions 2 2 Safety Precautions This section contains safety precautions that must be observed at all times when working on or with the product To prevent personal injury or property damage and to ensure long term operation of the product read this section carefully and follow all safety precautions at all times A DANGER Danger to life due to high voltages when working on the inverter The inverter must be mounted installed and commissioned by qualified persons only Troubleshooting must be performed by qualified persons only Only operate the inverter in a closed state Do not touch uninsulated cable ends The inverter must be mounted installed and commissioned by qualified persons with the appropriate skills only e If an error occurs have it rectified by a qualified person A DANGER Danger to life due to high voltages When exposed to sunlight the PV array generates dangerous DC voltage which is present in the DC conductors and the live components of the inverter Touching the DC conductors or the live components can lead to lethal electric shocks Do not touch the DC conductors Do not touch any live components of the inverter e Prior to performing any work on the inverter disconnect it from all voltage sources as described in this document see Section 2 3 page 9 Service Manual SB3 5TL 21 SG en 10 7 2 Safety SMA Solar Tech
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