Friedrich SP05A10 User's Manual
Contents
1. Dose the Buzzer sound when the power on gt Go to the clause No power Check whether the COOLING ICON LED lamp is N a and the operation starts when pressing the on off to the clause when he remocon button of the remocon does not operate Gheck whether the compressor is activated in three Y minutes after turning on the power with the CoollNG ICON LED lamp being switched on when selecting the gt Normal operation cool mode of the remocon N Is the IC03 output normal N Check the IC03 for short and cold When the compressor is on IC03 soldering No 13 pin Low Replace the IC03 Y Y Does the relay RY71 operate normally tal Check the relay coil resistance When the compressor is ON the RY71 should operate resistance About 15024200 Replace the relay Y Check the operation of the O L P Y N and replace it if Is the compressor normal gt Check compressor Y resistance 0Q short 0 open Y Replace the compressor FRIEDRICH AIR CONDITIONING CO 5 5 Troubleshooting 5 2 5 When the fan motor does not operated 1 Check points 1 Is the voltage of the power source normal 2 the rating voltage 10 range 2 Is the electric wire in good contact 2 CN71 RX71 3 Is the starting condenser FAN MOTOR in good contact 4 Is the fan motor connector i2. 424 2 2 2 Remote Control Remote control transmission indicator aS Mode selection button Operating mode Cool Fan Dry Cool Dry Fan Temperature setting Temperature adjustment buttons Seep mode Sleep timer setting button Energy Saving mode Fan speed adjustment button Fan speed Energy Saving button On Timer setting Timer setting button Off Timer setting Timer Set Cancel button Battery discharge indicator On Off button 2 4 FRIEDRICH AIR CONDITIONING CO 3 Installation and Operating Instructions 3 1 Installation 3 1 1 Selecting Area for Installation 1 Make sure that you install the unit in an area providing good ventilation The air conditioner must not be blocked by any obstacle affecting the air flow near the air inlet and air outlet 2 Make sure that you install the unit in an area that allow good air handling The installation area must be able to endure vibration from the unit 3 Make sure that you install the unit away from heat or vapor 4 Make sure that you install the unit in an area which is cool and has adequate space 5 Make sure that you install the unit in an area away from TVs audio units cordless phones fluorescent lighting fixtures and other electrical appliances obtain a clearance of at least one meter Make sure that you install the unit in an area which provides easy drainage for condensed water Make sure that you install the
3. whether the COOLING ICON LED lamp is Y and th operation starts when pressing the p remocon is normally operated on off button of the remocon l N Is the battery voltage of the remocon above N DC 2 72 gt Replace the battery Y Y N Check the X TAL for cold soldering Does the X TAL RJ 455JB oscillate normally short Replace relevant components Y Check the micom ICT1 01 and Is the collector voltage of th 1 Q2 VA si nia ad 2 for cold soldering and a short quare wave Replace relevant components i i N Check the R415 components Is the input voltage of the micom IC05 No 15 pin of the assembly main aquare wave Check the assembly main PCB micom IC05 Replace the assembly main PCB 5 4 FRIEDRICH AIR CONDITIONING CO Troubleshooting 5 2 4 When the compressor is not operated 1 Check points 1 Is the voltage of the power source normal 2 the rating voltage 10 range 2 Is the desired temperature lower than the indoor temperature in the COOL mode2 Compressor stopped 3 Is the starting condenser in good contact 4 Is the electric wire in good contact 2 CN71 RX71 5 Is the output voltage of the IC01 KA7812 and IC02 KA7805 normal 2 Turn off the power and then turn it on again five seconds later
4. TN71 TRANS AC230V 115V PCB MAIN 1 j 1 03 al a KA75330 222 NI G COMPERSS j ki 777 lt 7 12 KA 2 RESET OCON R JDULE 1 4021 06 2 2 1NT2 19 OUT R 2 GND an 1 8W D 1 1 J ULN2003AD EMBRANE 10 3 DIE 2 P1 3 BUZ 14 al P2 1 INTI e LOUVER MOTOR LOU VER MOTOR 1 soi gt 2 4 INT4 13 gt HH P2 0 INTO 2
5. PE ROOM AIR CONDITIONER Friedrich SP05A10 S ERVICE Manual CONTENTS 1 Precautions AIR CONDITIONER 2 Product Specifications 3 Installation and Operating Instructions atti NNSS Disassembly and Reassembly MN GG lt Troubleshooting Exploded Views and Parts List Block Diagram Diagram Wiring Diagram 10 Schematic Diagram 1 Precautions 10 Warning Prior to repair disconnect the power cord from the circuit breaker Use proper parts Use only exact replacement parts Also we recommend replacing parts rather than repairing them Use the proper tools Use the proper tools and test equipment and know how to use equipment mav cause problems later intermittent contact for example Power Cord Prior to repair check the power cord and replace it if necessarv Avoid using an extension cord and avoid tapping into a power cord This practice mav result in malfunction or fire After completing repairs and reassembiv check the insulation resistance Procedure Prior to applving power measure the resistance between the power cord and the ground terminal The resistance must be greater than 30 megaohms Make sure that the grounds are adequate Make sure that the installation conditions are satisfactorv Relocate the unit if necessarv Keep children awav from the unit while
6. SET NE Ji gt N DI 5 INT5 cadi Kan Z 102 SW91 A OWS 13 2 6 INT6 0902 4 re A a OPTION i 1 FAN MOTOR P2 7 INT7 Vdd CAPACITOR ta G o lt lt Test C502 KAT ud ikel etta 11 53 Av 23 225 X 4 He vss 9 N 0905 6 Le HIGH A P1 5 TxD 32 PA NED fik d P4 0 11 Xout ka 3 pal KRA226543 4 P4 2 x 2 4 9901 3 si 3 Xir P4 3 pa alt SENSOR ere 9903 DI 02 ET 180 J 1 4W 8 2 P THERMISTOR 3 _ R90 b 2b 0 01 9 R902 po 1 a 10 2 MALE d 2d _ 2 42 e 2e 0 3 f 21 0 4 24 40 g ELA 09 38 20 0 7 C403 104 D306GWA S29 LEDOS Br OPTION Friedrich FRIEDRICH AIR CONDITIONING CO Post Office Box 1540 1 San Antonio Texas 78295 1540 4200 N Pan Am Expressway 1 San Antonio Texas 78218 5212 210 357 4400 1 FAX 210 357 4480 www friedrich com Printed in China
7. 6 1 Exploded View and Parts List MM Part List QTY SPOSA10 ASSV PANEL FRONT DB92 00393B ASSY TOP SEA PANEL FRONT DB64 00680A 5 2 BLADE V DB66 00367A 5 2 0 LINK BLADE DB66 00368A PP L82 T1 3 GRILLE AIR INLET DB64 00681B JHIPS T2 CASE CONTROL UP DB61 00933A JSGCC M TO 7 FILTER DB63 00600A JHIPS T2 5 EVAPORATOR DB96 01972A 2 105 1 3 ASSY PLATE EVAP CASING DB90 00898A 55 NUT FRANGE DB60 30004A 2 6 5 20 NTR BLOWER DB67 00099A 5 TOP P J ASSV EVAP CASE UP DB90 00944A J25FO PS PLATE PARTITION DB70 00219A ABS T2 5 INSULATION TUBE DB72 50178A 30 36 134 MOTOR DB31 00035K YGN50 6K FAN PROPELLER DB67 00014A JABS 290 OK PJT NUT FRANGE DB60 30020A M6 LEFT CASE COND DB61 00932A 4 2 378 1308 ASSY COND DB96 02044A 2 155 1 5 ASSV SHUTTER LF DB92 00336A JPVC SC 94445R ASSV CABINET DB90 00912A SHUTTER ANGLE UP DB64 00518A JSECC P T1 W8 ASSY SHUTTER RH DB92 00337A PVC SC 94445R TUBE DISCHARGE DB62 01349A 1220 0 TUBE SUCTION DB62 01314A 1220 0 COMPRESSOR 39A050HS1KA 115V 60Hz 1Ph NUT TERMINAL COVER DB60 30001A 5 5 20 GASKET DB63 20003A JEPDM TO 8 COVER TERMINAL DB63 10026A GE NORYL SEI 701 NUT WASHER DB60 30028A JM8 ZPC GROMMET ISOLATOR DB73 00016A EPDM BLK OK PJT O L P DB35 00006F ASSV CONTROL BOX DB93 01357G 5K ELEC A SWITCH MEMBRANE DB34 00019F 76 8 114 5 CASE CONTROL LOW DB61 00934A Y PJT SGCC M T0 7 CLIP
8. it is being repaired Be sure to clean the unit and its surrounding area FRIEDRICH AIR CONDITIONING CO Fig 1 2 No Tapping and No Extension Cords Fig 1 4 Clean the Unit l 1 2 Product Specifications 2 1 Table Item ee SP05A10 REMARK Measure Type WINDOW Dimension Width Height X Depth Voltage Volt 115 Phase SINGLE Frequencv Hz 60 Operation Current A 4 6 Power Consumption W 500 Refrigerant Type FREON R22 Refrigerant Change g 300 Capacity BTU h 5400 EER BTU h W 10 8 Net Weight Kg 18 5 Condenser Row 2x15 Condenser Fan Type Propeller Fan Evaporator Row 2x10 Evaporator Fan Type Blower Fan Motor MODEL YGN50 6K E Compressor Rotary MODEL 39A050HS1KA Overload Protect MRA12145 12008 Compressor Capacitor 35 270 Two Capacitor combined to be the one Fan Motor Capacitor u 3 5 270 with below spec 35 3 5uF 270 Fan Speed RPM 1060 1010 960 Thermo Control THERMISTOR FRIEDRICH AIR CONDITIONING CO 2 3 MEMO FRIEDRICH AIR CONDITIONING CO 2 2 Dimensions 2 2 1 Main Unit TIT Unit mm Y Front view Side view SSSA 5 5 11 E a DA
9. unit in an area not exposed to rain or direct sunlight Install a separate sunblind if exposed to direct sunlight Make sure that you install the unit in an area allowing good air movement Do not install it in a space that would cause noise amplification of noise Fix the unit firmly if mounted in a high place Caution Do not use the air conditioner in the following environments greasy areas including areas near machines or marine areas Contact your local dealer for advice FRIEDRICH AIR CONDITIONING CO 3 1 3 2 Function Description 3 2 1 Cooling operation mode The compressor is turned on and off according to the ambient temperature and set temperature 1 Compressor on and off control e Compressor off control according to the ambient temperature The compressor is turned off when ambient temperature set temperature x The compressor is turned on when ambient temperature set temperature 1 C 2 Default value after power reset gt set temperature 75 F Fan speed High 3 Set temperature indicating setting range 1 F interval from 64 F to 86 F 3 2 2 Fan operation mode 1 If Fan operation mode signal is received from remocon or panel gt the compressor is immediately turned off and only fan motor is operated at set blowing speed B it changes such as High Med gt Low gt High if Fan speed is selected 2 The initial Fan motor speed is set to High 3
10. 88 B SEE w ot sii g 8 1 FRIEDRICH AIR CONDITIONING CO PCB PARTS IM Part List DB93 00874U BJIC VOLTREGU ___ juswsis jc ___ 1 O FR 1112 651 6mm A fC __ jio32164 s 8 Cd 8 2 FRIEDRICH AIR CONDITIONING CO 9 Wiring Diagram SENSOR THERMISTOR NOR I 212 m LED DISPLAY CNI2 LED LAMP ili m W 2 BUZZER 313 2 HIV 2 TRANSFORMER CNIT 2 MODULE s 2 2 313 414 il F701 2 250V AC 9 MEMBRANE i LIVE s PAD 5 Ci 6 i P GRAV 1 2 RY3 RY NEUTRAL a gt crn E RED YEL ORG RESSOR CAPACITOR R MOTOR 85 Z 1 wx m n Suy EEI WIW B O Y R 7 AEBERE T TITIKI WHT BLK CAPACITOR H RED o WHT BLK RED FRIEDRICH AIR CONDITIONING CO 9 1 10 Schematic Diagrams 10 1 MAIN PCB
11. CAPACITOR DB65 00031A SGCC M T0 45 POWER CORD DB39 00343G 125V 15 AWG18 THERMISTOR DB32 10051D 10 25 3425 ASSV PCB MAIN DB93 00874U JSEA 5K TOP ELECTRONIC PANEL CONTROL DB64 00571A JABS V5 T2 C OIL 2501 001290 3 5 35uF 270VAC TRANSFORMER DB26 00006G JAC115V 50 60HZ DC17V TUBE CAPILLARV DB62 01315A 1220 DB90 00897A JMSWR10 M8 L10 DB97 90014K JOK P J ASSV REMOCON DB93 01433F JOK PJT ARC 724 6 2 FRIEDRICH AIR CONDITIONING CO 7 Block Diagram 7 1 Refrigerating Cycle Block Diagram PINCH PIPE SERVICE VALVE gt SUCTION LINE DISCHARGE LINE Is EVAPORATOR Room Temperature sensor gt Receiving Unit of Remocon Remote Control Operation Dry Timer Sleep Fan speed high Fan speed med Fan speed low Fan Cool Energy saver Temp setting T Temp setting l FRIEDRICH AIR CONDITIONING CO ACCUMULATOR COM PRESSOR lt CONDENSER A D converter Led display control Remocon Single Receiving Compressor control Buzzer control Temperature control Fan motor control Reset Circuit Oscillation Circuit Ts CAPILLARY TUBE lt issa PIPE SERVICE VALVE 7 2 Basic Structure 7 2 1 Micom Control Diagr
12. The set temperature can not be indicated and set 3 2 3 Energy saver operation mode If the compressor turn off at the cooling operation the fan motor turn off after operation during the fixation time only and operation that energy saver by turn off the fixation time only and operation that energy saver by turn off the motor continuously before the condition of the compressor on The fan motor is not operated at flow wind operation Energy saver operation specification at the cooling operation 1 Fan motor control in compressor on operate with setting wind speed 2 Fan motor control in compressor off After compressor off the fan motor is operated breeze for 2 minutes and then it turn off 3 After the fan motor off the compressor and fan motor is operated normally when the compressor on 3 2 FRIEDRICH AIR CONDITIONING CO Installation and Operating Instructions 3 2 4 Sleep operation mode 1 Enable to sleep operation only when cooling operation 2 First 7 SEG LED DISPLAY SLEEP while 15 second Second 7 SEG LED DISPLAY 8Hr And automatically SET OFF after operated while 8 Hour 3 If sleep operation setting Temperature rise 1 C after 1 Hour 4 ON TIMER operation not operation ENERGY SAVER operation not sleep operation 3 2 5 Dry operation mode If the atmosphere in the room is very humid or damp use this operation mode It can remove excess humidity without lowering the room temperature too much 1 The quan
13. am MAIN MICOM Membrane Pad control Kev operation Energe saver Temp set T b Operation Mode Swing Sleep Fan select Timer Remocon control Remocon single control Compressor Fan motor Power circuit DC 5V i Powercircuit DC 12V 4 Down Trans AC15V Power input AC220V 1 1 Block Diagram 7 2 2 Micom pin assignment SEG DATA c SEG DATA b GRID4 GRID3 Vcc Vss 10MHz RESONATOR 10MHz RESONATOR TEST GRID2 RESET IC OUTPUT KEY IN1 KEY IN2 REMOCON EEPROM CS LOW FAN COMPERSSOR MIDDLE FAN HIGH FAN 4 WAY VALVE Vcc 1 2 1 2 3 4 5 6 7 8 9 KS88C4716 GRID5 SEG DATA d SEG DATA e SEG DATA f SEG DATA g SEG DATA h SEG DATA a EEPROM CLK EEPROM IN EEPROM OUT BUZZER OPTION JIG OUTPUT OPTION SENSOR THERMIS TOR 103AT OPTION OPTION OPTION OPTION SAVE OPTION SWING MOTOR GND FRIEDRICH AIR CONDITIONING CO 8 PCB DIGRAM 8 1 ASSY MAIN PCB MAIN PCB DB93 00874U Front Side ql 102 P9 0 TES di DB93 00874A Pr Jpia l JPI6 P RYT w JPA SSI Sa RY72 HIGH Back Side gt 1 gt a 1 3 MI T m sa 3 a 55 gy Fi
14. cordance with the procedures of troubleshooting symptom 5 1 Basic Checkpoints for Troubleshooting 1 Is the voltage of the power source appropriate 2 1 It should be within the rating voltage 41090 range 2 The air conditioner mav not operate properlv when the voltage is out of this range 2 Is the connection with the fan motor compressor wire and starting condenser appropriately made 3 The symptoms listed in the table below are not indicative of machine trouble Symptom Cause and check No operation Check whether there is power failure or the power plug is pulled out Check whether the unit is stopped as a result of completion of the sleep time Pull out the power plug for ten seconds and then insert it again Air flows but Check whether the Air filter is clogged with dust or is dirty no cooling Check whether the desired temperature is too high Set the desired temperature to a lower level than the current temperature Check whether it is in FAN mode The remocon does Check whether battery is completely depleted not operate Check whether the battery is properly inserted Check whether the receiving window of the remocon for the assembly main PCB is blinded Check whether the remocon is affected by jamming due to a neon sign No temperature Check whether the unit is in FAN mode setting In FAN mode only the current temperature is displayed and the
15. desired temperature is not set Checking and Display of Fault Area ERROR OPERATION ERROR OPERATION ROOM THERMISTOR OPEN OR SHORT E1 displayed FRIEDRICH AIR CONDITIONING CO 5 1 5 2 Troubleshooting bv Svmptom 5 2 1 power 1 Check points 1 Is the voltage of the power source normal 2 the rating voltage 10 range 2 Is the electric wire in good contact 2 CN 71 RX 71 3 Is the output voltage of the IC01 KA 7812 normal 2 DC 11 5V DC 12 5V 4 Is the output voltage of the IC02 KA 7805 normal 2 DC 4 5V DC 5 5V Turn off the power and then turn it on again five seconds later Dose the buzzer sound when the power on y Check whether the COOLING ICON LED lamp is on and the operation starts when pressing the ON OFF button of the remocon N Is the F701 3 15A fuse blown N Y Normal operation Normal operation Is the primary voltage of the transformer normal the rating voltage 10 range Replace the fuse i Is the secondary voltage of the transformer normal 13V 17 gt Check the power cord and electric wire Y Y Is the rectifier diode bridge BD61 normal Check and replace the trans gt Y Y Is the voltage of DC 17V DC 23V applied at both ends of the C101 electrolytic condenser Is the v
16. e all screws on the both side of the cabinet 2 Take the cabinet upward 3 Ass y Control 1 Remove the earth screw fixed on the base 2 Remove 3 screws fixed on the partition 3 Remove the screw fixed for the power cord 4 Un connect the motor wire and comp lead wire then take out the control box upward The picture maybe have a little different from actual product FRIEDRICH AIR CONDITIONING CO 4 3 Disassembly and Reassembly Procedure SPO5A10 No Part Name Procedures Remarks 4 CASE EVAP 1 Take the case evap up forward carefully UP amp ASSV tear all the seal on it before EVAP 2 Pull the frame up upward 5 Blower 1 Remove all screws on the evaporator 2 Pull the evaporator from frame low carefully 3 Remove the nut remove the Blower 6 Case Cond amp 1 Remove 2 screws on the rear side of the Fan Propeller base pan and all screws fixed on case cond amp Motor Fan 2 Pull up the condenser from the base pan 3 Remove the nut and remove the Propeller fan 4 Remove the screw fixed on the partition and earth screw fixed on the base pan then take out the motor backward 4 4 FRIEDRICH AIR CONDITIONING CO 5 Troubleshooting Check the basic checkpoints first to determine whether it is machine trouble or a problem in the operation method When it is not related to the basic checkpoints perform checking in ac
17. g tube FRIEDRICH AIR CONDITIONING CO 4 1 4 2 Checking the oil Fill the transparent container with 10cc of oil and then conduct the test 4 2 1 Oil quality Condition of Oil Condition R k Refrigerant Cycle Color Odor Normal Straw Yellow No Odor Return with the system Over heated Brown Color i Change the oil Compressor Damage Dark Brown Pungent oil Change the oil 4 2 2 Replacing and refilling the refrigerant oil 1 Change the compressor DO NOT recharge the oil as the compressor itself is already charged 2 Change the condenser add 50cc 3 Change the evaporator add 50cc 4 When the refrigerant is replaced add 30cc oil 5 After vacuum is completed the oil is filled through the high pressure side 6 In the event of a refrigerant leak generally it is not necessary to add oil Unless the oil has leaked significantly 4 2 FRIEDRICH AIR CONDITIONING CO 4 3 Disassembly and Reassembly Procedure SP05A10 Stop operating the air conditioner and pull out the power cord before repair No Part Name Procedures Remarks 1 Ass y Grille 1 Pull the Grille air inlet and Guard air filter out 2 Remove the screw on the panel front 3 Hold the lower part of panel with two hands while pressing down on both sides of the lower part of the cabinet pull it forward by about 30mm and then lift it up carefully for removal 2 Ass y Cabinet 1 Remov
18. m IC05 No 13 14 port a square wave ja Gheck the micom 05 for a short and replace it Check the micom N 05 for a short and replace it Is the voltage of the micom 05 No 3 4 10 11 44 port a square wave L A Is the voltage of the micom 05 No 3 4 10 11 44 port a square wave i Is the voltage of the Q901 0905 square wave im Check the Q901 N Q905 for a short ka and replace it Sihoni nea Check the IC06 N Is the voltage of the for a short and lt i 06 No 10 16 a square replace it value E Replace the membrane key pad FRIEDRICH AIR CONDITIONING CO Replace the membrane kev pad Gheck the micom 05 for a short and replace it 5 3 Troubleshooting 5 2 3 When the remocon is not operated 1 Check points 1 Is the voltage of the power source normal 2 the rating voltage 41090 range 2 Is the electric wire in good contact 2 CN71 71 3 Is the assembly main PCB in good contact with the TOUCH KEY PAD SW01 SW05 4 Is the batterv voltage of the remocon above DC 2 7V2 Turn off the power and then turn it on again five seconds later N Dose the Buzzer sound when the power on gt Go to the clause No power
19. n good contact CN73 5 Is the output voltage of the IC01 KA7812 and IC02 KA7805 normal 2 Turn off the power and then turn it on again five seconds later Dose the buzzer sound when the power Check whether the COOLING ICON LED lamp is and the operation starts when pressing the on off button of the remocon Is the IC03 output normal When the fan motor is High IC03 No 12 pin Low When the fan motor is Med IC03 NO 14 pin LOW When the fan motor is Low IC03 No 15 pin gt Low Does the 72 73 74 operate normallv2 When the fan motor is High RV74 should operate When the fan motor is Med RV73 should operate When the fan motor is Low RY72 should operate e p Go to the clause No power Go to the clause of when the remocon does not operated Is the fan motor normal Replace the fan motor FRIEDRICH AIR CONDITIONING CO e Check the IC03 for a short and cold soldering e Replace the 1C03 Check the relay coil resistance Normal About 4000 Replace the relay Check the fan motor resistance 00 short 0 open Check the fan motor thermal fuse 5 7 6 Exploded View and Parts List 6 1 Main unit EXPLODED VIEW 05 10 FRIEDRICH AIR CONDITIONING CO
20. oltage of DC 12V applied at both ends of the C102 electrolytic condenser Is the voltage of DC 5V applied at both ends of the C103 electrolytic condenser Are the ICO1 KA7812 02 7805 normal2 Check the BD61 for cold soldering Replace the rectifier diode Check both ends of the C101 for short and cold soldering Check the 12V for a short Check the 5V for a short Check and replace the C101 104 la Replace the assembly main PCB Check the IC01 or ICO2 for cold soldering and a short e Replace the 01 02 FRIEDRICH AIR CONDITIONING CO 5 2 2 When the Touch Kev pad and Led Displav 1 Check points 1 Is the voltage of the power source normal the rating voltage 10 range 2 Is the electric wire in good contact CN71 RY71 3 Is the connection of the assembly main PCB and TOUCH KEY PAD in good contact SW01 SW05 Turn off the power and then turn it on again five seconds later When the LED displav is Normal operation 4 not operated When the membrane key is not operated Troubleshooting Normal operation Y Y Is the voltage of the micom IC05 No 1 2 38 43 port a square wave Check the micom N IC05 for a short and replace it Se Is the voltage of the mico
21. tity of air is adjusted automatically 3 2 6 LED display indication in case of error detection ERROR OPERATION ROOM THERMISTOR OPEN or SHORT 7 5 LED DISPLAV E1 displayed 1 Set operation in case of error occurrence Malfunction of each temperature sensor open short Error mode display warning sound The operation status is off FRIEDRICH AIR CONDITIONING CO 3 3 3 4 MEMO FRIEDRICH AIR CONDITIONING CO 4 Disassembiv and Reassembly 4 1 Compressor Replacement Flow Chart Locate cause of defect lt Y Release refrigerant Disconnect electrical wiring from compressor Y Cut refrigerant lines from compressor Y Plug disconnected lines Y Replace compressor Y Inspect electrical Solder discharge line Solder suction line Use nitrogen gas wiring for defects and terminals for correct and secure connections v Perform soldering function Problem y Fill system with nitrogen gas Check for leakage l Corrective action Y Check refrigerant oil level Leakage N Y Release nitrogen gas Low oil level Y Evacuate system Y Add oil as necessary Y Recharge system Y Pinch and braze fillin
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