Humidifier User Manual

2 WATER LEVEL DROPPED BELOW LOW LEVEL - - The low level switch has not closed after 5

minutes of fill valve on time. This is only after initial start-up fill and boil-down sequence.

Check: debris in water switch canister, defective fill valve, no water flow or low water pressure, drain

valve stuck open, defective low water level switch (electrodes need to be cleaned).

3 WATER LEVEL ABOVE HIGH LEVEL TIME OUT - - The high water switch is still closed 5 minutes

after the fill valve has turned off upon hitting the high water level and a 30 second drain does not drop

the water below the high water level. Check: defective high water level switch, debris in level canister,

fill valve stuck open, drain valve is defective or scale buildup in drain line.

4 ILLEGAL LEVEL SWITCH STATE - - The high level switch is closed and the low level switch is

open. Check: defective level switch(es), debris in electrode level canister, scale on electrodes or can-

ister, improper wiring of electrodes or float switches.

5 OVER TEMPERATURE - - Internal temperature exceeds safe level. Check: low water in tank,

scale buildup on Thermocouple heating element surface, defective Thermocouple. See Clearing

"Error" Codes section.

6 WATER LEVEL HAS NOT DROPPED BELOW LOW LEVEL - - The low water level switch has not

opened after a complete drain. Unit drains frequency and duration can be set in menu. Check: defec-

tive low water level switch or electrodes, defective drain valve, debris on low water level float switch or

electrodes, tank drain screen, or in drain valve

Clearing "ERROR" codes

After correcting the problem, the error state must be cleared by depressing the button "Error Clearing".

Confirm the operation, the unit should resume normal operation (If the water level is above the low

water, the unit will drain below the low water level and refill before energizing the contactor). Turning

the power on and off will not clear the error condition.

Safety Switches

When the high limit or air proving (pressure) switch opens the state light will flash green and the

message “High Humidity/Sail Switch Circuit is Open” will be shown on the front display. This is a soft

error, it does not have to be reset. When the circuit closes the unit will go back to normal operation.