Troubleshooting - Honeywell TrueSTEAM HM506 Installation Manual

Troubleshooting
TrueSTEAM has internal system diagnostics that monitor operation, maintenance schedules, and faults, If a
system fault is detected, TrueSTEAM will attempt to recover up to five times in a 24-hour _eriod,
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If TrueSTEAM is unable to recover by itself within 24 hours, the red Service light blinks _na series that
indicates the fault detected.
Refer to the table below for the fault indicated, along with the steps to fix TrueSTEAM.
Press and hold the Go button until the Service light turns off.
No. of Fault Description Auto-Recoverable? Steps to Fix
Service LED (Performed Only By Professional HVAC Technician)
Blinks
1 Water/Heater Yes, TrueSTEAM 1. Unplug TrueSTEAM and plug back in.
temperature will reset if fault 2. Press the Go button.
sensor failed, no longer exists 3. If fault returns, replace TrueSTEAM.
in one hour.
2 Water sensors failed. Yes, TrueSTEAM 1. Unplug TrueSTEAM and remove cover.
will reset if fault 2. Disconnect water level sensor wiring. Remove screen and lift
no longer exists snap-hinge clamp.
in one hour. 3. Remove water sensor assembly.
4. Replace water sensor (#50027998-001).
5. Reassemble the sensor assembly in the TrueSTEAM. Replace
snap-hinge, then re-attach and secure the cover.
6. Plug TrueSTEAM back in and press the Go button to reset.
Failure to fill tank
with water.
Yes, system will
return to "Ready"
if fault no longer
exists in
three hours.
1. Ensure inlet water is on.
2. Check for leaks around the tank seal and solenoid.
3. Turn off water supply and replace the water filter(s).
4. Press and hold the Go button until the red Service light
turns off.
5. If tank still fails to fill, press the Drain button. (If tank fails to
drain, unplug TrueSTEAM and make sure water in tank is cool
before proceeding).
6. Follow the tank cleaning steps. See "Manual Cleaning Cycle"
on page 24. Ensure you have a firm grip on the tank before
releasing the tank, especially if water is present.
7. Clear any excess debris from the tank's bottom orifice to
the solenoid.
8. Reassemble tank and plug TrueSTEAM back in. Press the Go
button to reset.
9. If water still fails to fill into the tank, replace the solenoid valve
(#50027997-001).
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TrueSTEAMHumidification System 69-2285EF--01