SERVICE INDICATORS
A.The green "Power" light does not blink off and on.
1.The S2000 is not connected to an active 120 VAC 15Amp power source. (S2020, 240 VAC,
10AMP).
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.The HVAC electric power is 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 not on.
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 or the thermistor temperature probe may be defective. Contact the Technical Support Hotline.
E.
Red Service Light (error #1) is on constantly.
THERMISTOR FAILURE ...This is an indication that the temperature probe is 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
F.reconnecting, or call Technical Support.
Red Service Light (error #2) is on constantly.
WATER FAILURE ...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 off at 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 of the valve.
4.Unit is connected to a water source which is distilled, over-filtered, deunit-m neralized, or from a reverse osmosis
*The supply water must contain dissolved solidsystemin. Minimumthe water, or25the processorm waterwill notductivitybe able to detectr quiredthe.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.
G.Both Red Service Lights (error #3) are on constantly.
HEATER 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 45-50 minutes without a request for water, due to a leaking water fill valve, which is filling the tank continuously.
H.Both Red Service Lights (error #4) are flashing.
AIRFLOW FAILURE … This is an indication that the system blower is not running or the blower/fan proving device has failed, is malfunctioning, or is not wired correctly. Check the blower motor and the interlock wiring. Refer to page 4, Figure 11.
I.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 uses the natural conductivity of the water, to determine the proper water level in the reservoir. Water that has been de-mineralized or over filtered 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 fix 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 Thishardwillwirevoidthistheumidifierwarrantyto. line voltage.
