Honeywell TrueSTEAM Operating Manual page 15

About your new thermostat HVAC technician troubleshooting
No. of Fault Description
Red
Light
Blinks
3 Failure to fill tank with
water.
4 Heating element
overheated.
5 Input voltage
insufficient.
Auto- Steps to Fix
Recoverable? To be Performed by Professional HVAC
Technician Only
Yes, system • Ensure inlet water is on.
will return to • Check for leaks around the tank seal and
"Ready" if
fault no longer • Turn off water supply and replace in-line
exists in 1
hour. • Press/hold RESET button until the red Call
• If tank still fails to fill, press the EMPTY
• Follow tank cleaning instructions on page
• Clear any excess debris from the tank's
• Reassemble tank and plug unit back in.
• If water still fails to flush into the tank,
No • Press EMPTY button.
• Follow tank cleaning steps (pages 7–8).
• Reassemble tank and press the RESET
• If fault returns, replace with applicable unit.
Yes, system • Unplug and replug the unit in to see if the
will return to
"Ready" if • If fault returns, unplug unit and remove
fault no longer
exists in 1 • Ensure wiring connections are secure and
hour.
• If fault returns, replace the TrueSTEAM
3
TrueSTEAM Direct-Injection Humidifier
solenoid.
water filter.
Service light turns off.
button (if unit fails to drain, unplug unit and
make sure water in tank is cool).
7. Ensure you have a firm grip of the tank
prior to releasing the tank, especially if
water is present.
bottom orifice to the solenoid.
Press the RESET button.
replace the solenoid valve.
button.
fault returns.
cover.
attached.
with a new one (field service is not
recommended in the event line voltage is
lost).
69-2035EFS—0