Honeywell TrueSTEAM HM506 Installation Manual page 33

No. of Fault Description Auto-Recoverable? Steps to Fix
Service LED (Performed Only By Professional HVAC Technician)
Blinks
4 Heating element No 1. Follow the tank cleaning steps. See "Manual Cleaning Cycle"
overheated, on page 24.
2. Reassemble tank and press the Go button to reset.
3. If the fault returns, replace TrueSTEAM.
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 TrueSTEAM in to see if the fault returns.
3. If the fault returns, unplug TrueSTEAM and remove cover.
4. Ensure wiring connections are secure and attached.
5. If the fault returns, replace TrueSTEAM. (Field service is not
recommended if line voltage is lost.)
6 Water overflow Yes, system will 1. Ensure drain hose is not kinked or submerged in water at the
sensed, return to "Ready" drain. Check functionality of condensate pump, if used.
if fault no longer 2. Check for water coming out of the drain/overflow line. If
exists in one hour. continuous water flow is present, follow the tank cleaning
steps. See "Manual Cleaning Cycle" on page 24.
3. After cleaning, if the fault returns, unplug TrueSTEAM.
4. Loosen cover screw and remove cover.
5. Disconnect water level sensor wiring, remove screen and lift
snap-hinge clamp.
6. Remove water sensor assembly.
7. Replace water sensor (#50027998-001).
8. Reassemble the sensor assembly in the unit. Replace snap-
hinge, and re-attach and secure cover.
9. Plug TrueSTEAM back in and press the Go button to reset.
7 HVAC power Yes, system will 1. Unplug and replug TrueSTEAM in to see if power returns.
not present, return to "Ready" 2. If power does not return, ensure HVAC equipment has power.
if fault no longer Check circuit breaker or replace fuse if circuit is tripped.
exists in one hour. 3. Unplug TrueSTEAM and remove cover.
4. Check DIP 4 position and verify correct wiring based on DIP 4
position. See "Make Power Monitoring Decision" on page 14
for more information.
5. Plug in TrueSTEAM and press the Go button.
6. 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.
7. If the fault returns, replace TrueSTEAM.
8 The weld monitor No 1. Press and hold the Go button to clear the fault.
input is active when 2. Initiate a humidity call.
the heater relay is off. 3. If the fault returns, replace TrueSTEAM.
TrueSTEAMHumidification System 69-2285EF--01
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