OPERA
TION
AND SER
VICE
Steam Humidifier System 69-2285—09
51
No. of
Service LED
Blinks
Fault Description
Auto-Recoverable?
Steps to Fix
(Performed Only By Professional HVAC Technician)
4
Heating element
overheated.
No
If this is a new install:
1.
Reset the error code and power cycle the unit.
2. If the error code comes back, replace the unit.
If the unit has been in service while:
1.
Troubleshoot the water sensor
2. If troubleshooting indicates a sensor issue, replace the sensor.
3.
If that does not resolve the issue the entire unit will need to be
replaced.
5
Input voltage
insufficient.
Yes, system will
return to “Ready”
if fault no longer
exists in one hour.
1.
Verify the electrical circuit is not overloaded.
2.
Unplug and replug steam humidifier in to see if the fault
returns.
3.
If the fault returns, unplug steam humidifier and remove cover.
4.
Ensure wiring connections are secure and attached.
5.
If the fault returns, replace steam humidifier. (Field service is
not recommended if line voltage is lost.)
6
Water overflow
sensed.
Yes, system will
return to “Ready”
if fault no longer
exists in one hour.
Overflow error code is usually caused by one of two things:
1. Back pressure on the nozzle or remote hose.
2. Back pressure on the drain tube.
Ensure that static duct pressure is not above .5” wc.
If this is a remote install:
1. Make sure the remote hose has a minimum rise of 2” per foot.
Flat, or downhill pitches, even a sharp bend can contribute to
back pressure.
2.
Ensure that remote hose rises 6” from the steam humidifier
before it angles to the remote mount location.
3.
Ensure that the remote nozzle is not pointing in to the airflow.
Drain Tube:
1.
Ensure that the has s steady downhill pitch with no flat or
uphill areas.
2.
Ensure drain hose is not kinked or submerged in water at the
drain.
3. Check functionality of condensate pump, if used.
If the above does not resolve the issue:
1.
Follow the tank cleaning steps listed in the manual.
2.
After cleaning, if the fault returns, unplug steam humidifier
3.
Loosen cover screw & remove cover.
4.
Troubleshoot water sensor.
5.
Replace sensor if infinite resistance is not shown from P1 &
P3, P1 & P4, P2 & P4 and P4 & P5
6. Press button to Reset unit.
