AutoFlo S2020 Humidifier User Manual
Contents
1. is symbol on product means Installation Instructions Owner s Ma oratories Inc ELECTRONIC STE MODELS 82000 FOR GAS OR OIL FORCED AIR FURNACES H DIFIER Figures 1 ing your The AutoFlo Residential Power Humidifier you have purchased has been designed to be simple to Install Operate and Maintain Read this manual before you install the Humidifier WATER INLET WATER LEVEL PROBE HEATER TEMPERATURE PROBE FIG 1 Parts included in the Steam Humidifier package are Self Piercing Saddle Valve Installation Instructions and Owners Manual Mounting Templates x2 Installation Hardware package Insulation and tape Automatic Drain Assembly Humidistat Autoflo Models 062000 or 072000 1 2 LD Drain Hose 8 FT Anode ZZ 100 1 ON gt Q Copyright C 1999 2003 SIMPLIFIED INSTALLATION INSTRUCTIONS DETAILED INSTALLATION INSTRPAHBE 9IS O3 0 0000 10000 6 WATER SUPPLY Required Criteria A WATER SUPPLY USING THESADDLEVALVE FURNISHED WITH UNIT Installation instructions for the saddle valve are printed on the plastic bag containing the saddle valve and its components Tap into a 1 2 or 3 4 domestic hot water line for best results but a cold water line will do Avoid connecting to water lines from a Reverse Osmosis system The supply water must read a minimum of 25 ppm in order for the Steam unit to reliably sense the water2. 385 Highway 33 e Englishtown NJ 07726 800 446 3110 FAX 732 635 8646 e E Mail info ewccontrols com 10 Excellence Without yi I 2 2 LG I AI ONI IN OTTE Q AN 147 FAN FAILURE SAFETY LOCK OUT CIRCUIT CONTROLS INC Field Provided The use of a safety lock out circuit is highly recommended The circuit below is effective at stopping the humidifier operation if the fan motor fails for any reason The use of a system interlock is optional and not required for basic operation Failure to incorporate a lock out can result in excessive condensation inside the duct work and or possible flood damage if the HVAC Fan Blower fails to operate This solution is provided as a supplement Flood or water damage as a result of not using this diagram is not the responsibility of EWC Controls FAN FAILURE SAFETY LOCK OUT CIRCUIT 52000 amp S2020 HUMIDIFIER SEPARATE SAIL SWITCH OR TYPICAL CURRENT SENSING THERMOSTAT RELAY CONTACTS R W G Y K1 COIL SPDT K1 Interlock Basic RELAY 24 VAC COIL d K2 Interlock Optional RELAY 24 VAC COIL HUMIDISTAT K2 COIL EWC Controls Inc 385 Highway 33 Englishtown NJ 07726 800 446 3110 732 446 3110 FAX 732 446 5362 S series AutoFlo Steam Humidifier IMPORTANT NOTES LOCATION Installing the steam unit in the attic is NOT recommended Freezing temperatures the possibility of flood damage the possibility of producing an environment where mold
3. NOTE Never install the saddle valve on the bottom of the water pipe Sediment in the water pipe may clog the saddle valve When tightening the hex compression nut tighten only enough to assure there are no leaks NOTE Saddle valves do not meet plumbing codes in some areas T fitting with a valve may be required to meet code or if low water pressure causes frequent water alerts on the steam humidifier NOTE Do not use any line which is served by a water softener If your home has a water softener make the water connections to a water line upstream from the water softener A water softener is not a demineralizer It merely exchanges various hard ions for soft ions in the water These soft ions or minerals will build up in the humidifier causing the need for frequent servicing The evaporation of softened water may also produce a white powder which may be carried into the duct system and ultimately into your home Note Use a water hammer arrester WH 100 if water spikes occur during operation B OVERFLOW amp DRAIN LINES Required Criteria The use of an overflow line and drain line is always required Use the supplied 1 2 ID high temperature hose Slip the hose over the 1 2 OD drain fitting and use a hose clamp to secure Route the hose to a suitable drain avoiding kinks traps and sharp objects DO NOT routethe hose above the humidifier NOTE Previous models required two 2 drain hoses The n
4. can start are all good reasons to avoid this location However a successful attic installation can be performed if the following components and safety measures are included 1 A safety catch pan should be fabricated and installed directly underneath the entire air handler and the steam unit 2 Safety catch pan should have a water sensor with fail open dry contacts wired in series with the Steamer control circuit 3 The Fail safe blower interlock circuit on page 11 should be utilized with all devices included in the diagram 4 Insulating the water supply line and drain lines is mandatory If code allows apply heat tape to the water supply line and then insulate it 5 Adecision to operate the Steamer without the automatic drain valve may be necessary if a suitable downgrade slope to drain is not available The drain lines should never be trapped kinked or routed above the Steamer 6 Aseparate High Humidity cut out should be mounted in the attic itself and wired in series with the Steamer control circuit 7 Routine maintenance of the Steamer must be adhered to and annual inspections for moisture and or mold on the wood surfaces should be performed 8 All ductwork must be completely sealed as the source of excess moisture in the attic will come from leaky ductwork WATER SUPPLY 1 Remember the Steamer water supply must measure minimum 25 ppm conductivity in order for the processor to reliably detect the presence of water and the p
5. of the duct G Remove the two 2 screws holding the tank baffle to the pan flange and remove the baffle from the unit Scrape all mineral deposits from the baffle and wash baffle off as described in step J Remove the Anode from the baffle plate and purchase a new one Operating the unit without the Anode will degrade the performance and increase maintenance H Usea putty knife to scrape the minerals from the sides and bottom of the water reservoir DO NOT scrape on the small temperature probe or the heater element Use a soft emory cloth or brass brush I Carefully scrape the Water Level Probe to remove mineral deposits Use soft emory cloth ifnecessary J Clean the Water Probe Insulator inside the pan with a cloth and 50 50 mixture of water and vinegar rinse with fresh water Inspect for any mineral deposits on the plastic insulator Repeat cleaning if necessary and thoroughly dry Use a small brass brush to clean deposits off the heater element and thermistor probe Be careful not to damage any of the components K Rinse out the reservoir Be careful to keep water off of the wiring compartment or the outside of the humidifier Allow the unit to dry thoroughly before using L Reinstall the tank baffle and tighten the two 2 screws M Re install the unit in the duct and connect the water line the drain lines and the cable plug Store the unit in this condition for the summer or continue to the next step N Turn
6. provide a 24 VAC NEC Class 2 terminal for blower control IMPORTANT NOTE Ifthe Steam Humidifier is removed and disconnected from the system the blower interlock circuit must be restored to it s original configuration Failure to do so may result in loss of blower operation 10 SETTING THE HUMIDISTAT 2000 amp S2020 Humidifier It is recommended that humidistat settings of 30 40 not be exceeded If condensation is noticed on windows during very cold outside temperatures the humidistat setting should be lowered Heat only Thermostat R W The maximum recommended relative humidity for your home depends upon factors such as outdoor air temperature type and placement of insulation vapor barriers effectiveness of weather stripping type of windows and doors including frames and jambs and whether or not storm windows and doors are used With all these variables it 1s E 6 nearly impossible to recommend a proper humidity setting The best humidistat setting 1s one that you are comfortable Furnace Humidistat with Also as the outdoor temperature fluctuates it may be necessary to adjust the humidity level of your system a few times during the heating season FIG 6 Heat Only System m eem Refer to the Relative Humidity Chart as a starting point for Connect field wiring as shown in Figures 5 or 6 your proper humidistat setting Generally in a tighter and b
7. to fill the Water Pan E When the water has reached the probe level the FILL lamp and fill valve will be turned off and the HEATER LED and heaterelement will be turned on The POWER LED will blink slow and steady F Once the water reaches 170 deg E the BLOWER LED will illuminate and the system blower should start up Ifthe above steps have been successfully completed the humidifier is operating properly 12 OPERATINGSEQUENCE A POWER In normal standby mode when the humidistat is not calling for humidity and the power cord is plugged in the POWER LED should be blinking slowly If green POWER LED is not flashing when there is power to the unit there has been amalfunction in the microprocessor circuit B FILL When the humidistatcloses ona call for humidity the FILL LED is illuminated the Solenoid Valve is open the water reservoir is filling C HEATER When the water reaches it s proper level the valve closes the FILL LED goes out the HEATER LED is illuminated and the Heater begins to heat the water NOTE If the humidifier is unplugged while in operation and then plugged back in A rapid flashing of the POWER LED will occur and all other functions will stop The unit wants to perform a water probe test but cannot perform this test until the water cools down Simply wait until the unit cools down and it will resume normal operations 11 INITIALSTART UP SEQUENCE
8. uses the natural conductivity of the water to determine the proper water level in the reservoir Water that has been de mineralized or over treated may not allow the unit to function properly Minimum 25 ppm of total dissolved solids must be present in the water Add approximately 1 tablespoon of salt to the tank to temporarily remedy this problem 5 These steam humidifiers must be connected to dedicated outlets of the proper current and voltage ratings The use of extension cords is not recommended DO NOT cut off the grounded plug and or hard wire this humidifier to line voltage This will void the warranty 15 SERVICE AND REPLACEMENT PARTS ITEM 32000 S2029 DESCRIPTION OF PART PART NO PART NO T z favne OT zz aovo P Fs 2006 psamvawessseey e e 2006 INSULATION KIT Ls vers wH 100 WATER HAMMER ARRESTER o 11 2009 2009 UNDER DUCT STEAM COVER not shown CONTROLS INC 385 Highway 33 e Englishtown NJ 07726 www ewccontrols com e mail autoflo ewccontrols com Tel 800 446 3110 Fax 732 635 8646 OVERFLOW TUBE 50 ID x 6 LG P N 094021A0074 FIG 8 SOLENOID VALVE 24 60 VAC P N 094021A0040 BARBED TEE 1 4 18 NPT TO 1 2 P N 094021A0073 I I I BLACK WIRES 18GA X 18 LONG P N 501052A0002 DRAIN COCK VALVE P N 094020A0055 JUMPER WIRE 20GA X 1 50 LONG MOLEX PLUG P N 205113A0098 T ADA
9. ER FAILURE This is an indication that the water temperature is not increasing or reaching the boiling point 1 Faulty heater element or faulty wire connection 2 This can happen if the unit is operated without water in the pan as a result of a water level probe malfunction due to lack of maintenance The pan boils dry and over heats the water pan If this condition occurs call the Technical Support Hotline 3 The unit has operated for 45 minutes without a request for water due to a leaking water fill valve which is filling the tank continuously If the humidifier seems to operate in a random manner that doesn t seem to fit any of the pre described conditions check the following 1 Check to make sure that the wires used to connect the humidifier to the humidistat are separate wires and not part of a multi wire bundle used to hook up the furnace thermostat or any other device The associated close wires may create an induced voltage in the humidistat wiring 2 Make sure that the water level probe and plastic insulator are clean and free of mineral build up It may become electrically conductive to ground sensing a false indication that the water level is correct 3 If the electric solenoid valve makes a loud noise when it closes install an optional water hammer arrester to absorb the spike Frequent or erratic water fill cycles can be due to air turbulence when mounted in the supply air plenum 4 The water probe
10. OF OPERATION and SERVICE LED INDICATORS D BLOWER When the water in the reservoir reaches approximately 170 deg F the BLOWER LED will be illuminated and the interlock wiring should turn the system blower on Depending upon the water and ambient temperatures it may take anywhere from four to twelve minutes forthe water to heat to 170 deg F If the humidistat remains closed the HEATER and BLOWER LED s will both be illuminated at the same time and the POWER LED will be blinking slowly E The FILL LED will illuminate and the water reservoir will refill at irregular intervals depending on the boil off rate Depending upon the water temperature the BLOWER LED may remain illuminated or may go off when the reservoir is filling The HEATER LED should remain illuminated unless the humidistat opens or the humidifier enters a drain cycle or failure mode DRAIN This LED will be illuminated when the microprocessor cycles the humidifier into a Maintenance Mode After a fan forced cool down period the water is allowed to drain at 140 degrees F The drain valve will then close and the fill valve will open to refill the reservoir and resume normal operation This mode will last about one hour and the microprocessor will automatically restart the unit afterwards if there is a call for humidity This drain cycle will occur once every 8 12hours to reduce the mineral concentration in the tank and let the heater cool down Tha
11. PTER 1 4 NPT P N 094021A0038 EW C CONTROLS INC 385 Highway 33 e Englishtown NJ 07726 www ewccontrols com e mail autoflo ewccontrols com Tel 800 446 3110 Fax 732 635 8646 Tech 800 526 4048 9 NUT APPLICATION NOTE AN 131 CONTROLS INC INSTALLATION INSTRUCTIONS amp OWNER S MANUAL AUTOFLO H U M DI FI E R 2100 REPLACEMENT INSTRUCTIONS SUPPLEMENT TO THE AUTOFLO ELECTRONIC STEAM POWER HUMIDIFIERS Z100 ASSEMBLY MODEL 2000 AND S2020 The AUTOFLO steam humidifier now comes equipped with a factory installed Z100 which actsasa sacrificial metal Put simply minerals in the water will attack and cling to the 2100 The minerals will not attackthe other components inside the humidifier as long as the Z100 is present and active This results in a dramatic decrease in mineral and scale build up on the critical components inside the tank In particular it means less scale build up on the heating element which is subject to damage from excessive scaling and over heating This also means that efficiency stays high and preventive maintenance is faster and easier The Z100 is positioned on the baffle plate inside the tank and is easily removed and replaced Remember that the 2005 job is to become the target of mineral attack so it will be heavily covered with scale and should be replaced annually for best results To remove the Z100 you must have already unplugged and shutdown your steam humidifier a nd allow
12. SERVICE CYCLE TO BE STARTED IF THE WATER FAILURE ILLUMINATES UNPLUG THE UNIT FROM ITS POWER SOURCE WAIT ABOUT 15 SECONDS AND RECONNECT THE POWER SOURCE THE SERVICE LIGHT WILL GO OUT AND THE UNIT WILL CONTINUEFILLING TO THE CORRECT LEVEL SERVICE INDICATORS A Thegreen Power light does not blink off and on 1 The S2000 is not connected to an active 120 VAC 15 Amp powersource S2020 240 VAC 10 AMP 2 Call the Technical Support Hotline B The HEATER LED does not illuminate 1 The humidistat is not closed calling for humidity or the humidistat is wired incorrectly 2 The unit is in the maintenance cycle C The HVAC Blower will not operate but the Blower LED is on 1 The blower Field wiring and or interlock circuitry is incorrect 2 TheHVAC electric poweris disconnected 3 The humidifier internal Blower relay is defective Call the Technical Support Hotline 4 The HVAC Blower motor has failed D The HVAC Blower will not operate and the Blower LED is noton 1 The water pan temperature has not reached a high enough temperature to activate the Blower relay about 170 degrees Fahrenheit This takes several minutes after the HEATER LED is illuminated Depending on the water temperature and the surrounding condition this may take up to 12 minutes If the problem continues the heater element may be defective the thermistor temperature probe may be defective Contact the Technical Support Hot
13. ed it to cool The water tank has been drained the water supply drain lines and electrical wiring have been disconnected and the unit has been removed from the duct Refer to the blow up view on Page 8 Using a phillips screwdriver remove the two screws that hold the baffle plate to the tank Lift the baffle slightly backto clearthe water probe and then straight up and out of the tank You can then see the round Z100 orrather what is left of it aftera single season Notice the heavy scale build up on 200 that would have been on your element if the 200 was not there Use a rag or pliers to grasp the edges of the Z100 and simply unscrew it from the baffle plate Rinse off or wipe away any residual scale from the baffle plate and install a new 2100 Leave a slight gap between the bottom of the 2100 and the baffle plate Now re insert the baffle plate into the tank and secure with the two screws that were removed previously It s that simple The Z100 can also benefit the older model steam humidifiers Simply lay the 2100 down into the baffle plate in the same location as the factory installed model DO NOT lay the 2100 down into the main tank It may come in contact with the heating element and damage if Ihe dimensions of the baffle plate prevent the Z100 from falling down into the tank The Z100 is just the latest innovation in the AUIOFLO Steam Humidifierline as we continue in our pursuit of Excellence Without Compromise EWC Controls
14. es F the computer will open the relay contacts 9 WIRINGTHESTEAM HUMIDIFIER IMPORTANT Dedicated fused circuits of the proper voltage and current ratings must be provided AII wiring must conform to local and national codes A INSTALLINGAND WIRING THE HUMIDISTAT A humidistat such as the AutoFlo Models 062000 or 072000 15 required to control the Steam Humidifier The humidistat may be installed on the wall in the living space oron the return air duct NOTE Continuos fan operation should be initiated if the humidistat is installed on the return air duct Instructions for installation are packaged with the humidistat DO NOT connect any foreign voltage to the terminals of the humidifier The unit supplies it s own 24 volt control voltage Simply connect the two terminals straight to the humidistat terminals 52000 amp 52020 Typical Wiring and Blower Interlock Diagram 52000 amp 52020 Humidifier Typical H d Thermostat R WG Y R WG Y Furnace Humidistat FIG 5 Heat amp Cool System B FIELD WIRING All wiring must be made in accordance with local codes and ordinances DO NOT cut off the grounded plug and or hard wire this unit to line voltage Do not use extension cords to operate this unit Figures 5 amp 6 describes the suggested interlock wiring arrangement for HVAC systems Interlocking may be performed on heating systems that
15. etter insulated house the humidistat may be set higher than IMPORTANT Ifthe humidifier is installed in the return air ina drafty un insulated house plenum the humidistat must be located at least three 3 feet upstream from the humidifier Fan should be operated in continuos mode when humidistat is mounted in the return air plenum The humidistat has two 2 screw terminals which should be connected to the low voltage interlock plug Figure 5 Wiring instructions for the 072000 model Humidistat are packaged with the 072000 RELATIVE HUMIDITY CHART Indoor Relative Humidity Outside When Outside Maximum Safe Outside Relative Air Is Heated To Recommended Indoor Temperature Humidity 72 Degrees F Relative Humidity 10 Deg F 40 1 20 60 2 80 2 0 Deg F 40 2 25 60 2 80 5 10 Deg F 40 4 30 60 5 80 7 20 40 6 35 60 8 80 11 30 Deg F 40 8 40 60 13 80 17 Once the Steam Humidifier has been installed and the water humidistat and blower interlock connections completed the humidifier may be initially started A Flush and Turn ON the water supply to the steam Humidifier B Setthe humidistatto a high or ON position C Plug the 52000 Humidifier line cord into 120 VAC 15 amp source 240 VAC 10amp for 2020 D The Green POWER LED should blink rapidly and the drain valve will open momentarily upon initial start up The FILL LED will illuminate and water should begin
16. ew models include an integrated overflow tube with a high temperature barbed fitting The new design simplifies the installation process Failure to install all necessary drain lines will result in water leaks during normal operating conditions and voids all warranties 7 MOUNTING THE STEAM HUMIDIFIER Use gaskets to seal where the steam flanges contacts the ductwork Place the humidifier reservoir into the opening in the duct and secure with eight 8 sheet metal screws NOTE If the ductwork will not support the unit in a level position with the water pan full of water the duct work must be reinforced Both steam models weigh approximately 9 Lbs empty and approximately 15 Lbs full of water 8 STEAM OPERATION Because of the high output of this Humidifier it must not be operated in ducts or plenums without the blower operating The steam humidifier is designed to be Dominant over the Heating Air Conditioning System Blower The System Blower will be operated by the humidifier when humidity is required to meet the demand A minimum of 800 cfm is required for proper operation of the steam humidifier Lower velocities will result in excessive condensation inside the duct A temperature sensor is mounted in the water reservoir ofthe humidifier As the water temperature increases to about 170 degrees F the computer closes a set of blower relay contacts When the water cools to about 140 degre
17. fier in order to optimize performance Annual cleaning is a must and more frequent cleaning may be necessary depending on the mineral content ofthe water in your area A post winter cleaning and shutdown will prevent hard deposits from accumulating inside the bin while the humidifier is idle over the summer Do not allow the unit to sit idle for long periods without a proper draining cleaning and shutdown Failure to do so will affect the performance of your steam humidifier Maintenance and inspection of the unit requires removal of the humidifier from the duct This can be done following these steps A Unplug the power cord from the 120 volt source for 52000 240 volt for S2020 and allow the water to cool for at least 30 minutes prior to removal B Tum offthe water supply at the saddle tapping valve C Remove the cable assembly wire plug from the top of the plastic control housing D Drain the water with the manual drain valve NOTE The drain valve will be hot if the humidifier has not been allowed to cool E Disconnect the water and drain lines NOTE Some water may drain out of the water line Have a small container ready to catch the water NOTE Although the water has been drained some water may still remain in the humidifier reservoir along with sediment Be careful not to tip the unit over when removing it from the duct Remove the eight 8 screws from the front mounting plate F Slide the humidifier out
18. line E Red Service Light error 1 15 on constantly THERMISTOR This is an indication that the temperature probe 15 open or shorted to ground May also indicate the probe has detected a pan temperature below 32 degrees F Or in excess of 230 degrees F resulting in a total shutdown Try to reset the unit by unplugging the cord and reconnecting or call Technical Support Red Service Light error 2 15 on constantly WATER This is an indication that the water fill time has been exceeded The water level did not reach the probe tip in the given amount of time It may also indicate an unsuccessful drain cycle 1 The water line is shut offat the saddle valve 2 The water line is crimped or pinched 3 The water valve inlet screen is plugged Remove the water line from the unit and check the screen found inside the inlet side ofthe valve 4 Unit is connected to a water source which is distilled over filtered de mineralized or from a reverse osmosis system Minimum 25 ppm water conductivity is required The unit supply water must contain dissolved solids in the water or the processor will not be able to detect the water level 5 The water valve may be defective and must be replaced See replacement parts 6 The drain valve is unplugged or defective 7 Debris is clogging the drain valve or drain line 8 Reset the unit by unplugging the power cord and re connecting Both Red Service Lights error 3 are on HEAT
19. on the water supply Inspect the water connections and drain fittings for leaks Plug in the 52000 power cord to the 120 VAC 240 VAC for 82020 grounded outlet DO NOT use an extension cord a The green POWER light should blink slowly b Ifthe humidistat is calling for humidity the water valve willenergizeand the water pan will begin to fill 14 SERVICEINDICATORS Seven LED lamps provided on the front panel indicate the functional status of the humidifier as shown in Figure 7 below POWER Heater DN Steam Humidifier Ve Model 2000 BLOWER 1 4 KW 120 Volt 11 7 Amps Suitable for Residential Use Only HEATER 385 Highway 33 Englishtown NJ 07726 U S PATENT NUMBER 5758 018 LISTED 141V DRAIN For Replacement Parts Call 800 446 3110 09402140018 LED LIGHT EXPLANATION POWER GREEN BLINKING SLOWLY IF POWER TO UNIT SERVICE THERMISTOR RED ON STEADY SERVICE HEATER RED ON STEADY BOTH LED S SERVICE WATER RED ON STEADY BLOWER AMBER ON STEADY WHILE PAN ABOVE 170 DEG F HEATER AMBER ON STEADY WHILE HEATING BOILING FILL AMBER ON STEADY WHILE FILLING PAN DRAIN AMBER ON STEADY WHILE DRAINING PAN IMPORTANT NOTE ON THE INITIAL FILL AFTER INSTALLATION OR ANYTIME THE WATER PAN IS DRAINED THE PAN MUST FILL WITH ABOUT THREE 3 TIMES THE AMOUNT OF WATER AS REQUIRED IN THE NORMAL CYCLE OF FILLING THE FILL TIMER MAY TIME OUT BEFORE THE WATER LEVEL REACHES THE WATER LEVEL PROBE CAUSING THE
20. roper water level 2 Plastic 1 4 water supply tubing is supplied in the box for you however we recommend the use of copper tubing in most applications as it is stronger more reliable and can support the weight of the WH100 water hammer arrester 3 Use of a water hammer is highly recommended to dampen out water spikes when the Steamer opens amp closes the valve Field Notes EWC Controls Inc 385 Highway 33 Englishtown NJ 07726 800 446 3110 732 446 3110 FAX 732 446 5362
21. t will shed most deposits that have built up on the heater NOTE The POWER LED will blink rapidly during Maintenance mode NOTE A unique feature of the S series humidifiers is called Fill on Request The unit will not refill with water after a maintenance cycle unless there is a demand for humidity from the humidistat This ensures that the unit will not sit idle with standing water which can stagnate over time G FAILURE LED S When service is required these LED s will illuminate If the humidifier enters a failure mode it must be manually reset by disconnecting the powerand then reconnecting it WATER This will occur when the reservoir is not filling up with water not filling fast enough or the microprocessor cannot recognize that the water is touching the probe Reverse Osmosis water or purified distilled deionized water sources should be avoided unless the final feed water measures at least 25 ppm conductivity HEATER This will occur if the humidifier is not boiling off water during the HEATER cycle Water in the reservoir is not reaching 170 deg F temperature or the unit has not detected a request for water in a 45 minute steaming time period Both red LED s will illuminate in this condition THERMISTOR This will occur if a short or open is detected in the temperature probe 13 MAINTENANCE SPRINGSHUTDOWN Proper maintenance and removal of mineral deposits is still required on your steam humidi
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