Honeywell HCM-631N - Quietcare 3 Gallon Owner's Manual page 57

No. of Fault Description
Service LED
Blinks
7 HVAC power
not present.
8 The weld monitor
input is active when
the heater relay is off.
10 The heater relay failed
to turn on.
12 Temperature of the
electronic circuit
board is too high.
TrueSTEAM Humidification System 69-2285—01
Auto-Recoverable? Steps to Fix
(Performed Only By Professional HVAC Technician)
Yes, system will 1. Unplug and replug TrueSTEAM in to see if power returns.
return to "Ready" 2. If power does not return, ensure HVAC equipment has power.
if fault no longer 3. Check circuit breaker or replace fuse if circuit is tripped.
exists in one hour. 4. Unplug TrueSTEAM and remove cover. Check DIP 4 position
and verify correct wiring based on DIP 4 position. Check
install guide section on Power monitoring Information.
5. Plug in TrueSTEAM and press the Go button.
If the fault reappears, ensure the circuit being used has the rating
to support the TrueSTEAM. Unplug any additional equipment
plugged into this circuit. If fault disappears, the circuit capacity is
not properly sized to your unit.
If the fault returns, replace TrueSTEAM.
No 1. Press and hold the Go button to clear the fault.
2. Initiate a humidity call.
3. If the fault returns, replace TrueSTEAM.
No 1. Check for voltage on the heater terminals/leads. There should
be 120Vac.
2. If there is not, press the Go button to clear the fault.
3. Initiate a call for humidity
4. If the fault returns, replace TrueSTEAM
Yes, system will 1. Make sure ventilation holes in the cover are clear of
return to "Ready" obstruction. Make sure 1 foot of clearance is maintained around
if fault no longer the cover's vent holes.
exists in one hour. 2. Ensure TrueSTEAM is installed in a location with conditioned
air 34°F to 104°F (1.1°C to 40°C).
3. Turn humidistat off and allow time for electronic board to cool.
This could take up to 2 hours.
4. Turn humidistat on and press the Go button to reset.
5. Confirm humidity call starts by checking if Humidifying light
is on.
6. Allow TrueSTEAM to run. Check for steam leaks around tank
and ventilation holes.
7. If the fault returns, replace TrueSTEAM.
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