Honeywell TrueSTEAM Operating Manual page 17

HVAC technician troubleshooting
No. of Fault Description
Red
Light
Blinks
12 Temperature of the
electronic circuit board
is too high.
13 Tank failed to drain.
14 Heater failed to boil
water.
15 No Airflow
Auto- Steps to Fix
Recoverable? To be Performed by Professional HVAC
Technician Only
Yes, system • Ensure ventilation holes in the cover are
will return to
"Ready" if
fault no longer
exists in 1 • Ensure the TrueSTEAM is installed in a
hour.
• Turn humidistat off and allow time for
• Turn humidistat on and press RESET
• Confirm humidity call starts by
• Allow unit to run and check for steam leaks
• If steam is present, replace TrueSTEAM.
No • Press the EMPTY button.
• If unit fails to drain, wait for water in tank
• Once cool, follow tank cleaning steps
• Reassemble tank and press the RESET
• If fault persists, replace the solenoid valve.
Yes, system • Press EMPTY button, and follow tank
will return to
"Ready" if • Reassemble tank and press the RESET
fault no longer
exists in 1 • If fault returns, replace the heating element
hour.
Yes • Ensure Airflow Switch is wired correctly.
• Ensure DIP switches are set correctly.
• If fault persists, replace AFS and/or unit.
5
TrueSTEAM Direct-Injection Humidifier
clear of obstruction, and that 1 foot of
clearance is maintained around the cover's
vent holes.
location with conditioned air 32°F (0°C) to
104°F (40°C).
electronic board to cool.
button.
HUMIDIFYING light turning on.
around tank and ventilation holes.
to cool. Ensure tank water is cool before
proceeding.
(pages 7–8).
button.
cleaning steps (pages 7–8).
button.
with the applicable wattage replacement
part.
The TrueSTEAM installation guide
(69-2036) contains diagrams for proper
wiring.
69-2035EFS—0