No. of
Light
Fault
Steps to Fix
HVAC Technician Only
ll tank with
• Ensure inlet water is on.
seal and solenoid valve.
replace in-line water filter.
the red Call Service light turns
• If tank still fails to fill, press and
seconds (if unit fails to drain,
in tank is cool).
in the Professional Installation
grip of the tank prior to releasing
present.
the tank's bottom orifice to the
• Reassemble tank and plug unit
• If water still fails to flush into the
4Heating
overheated.
button for 3 seconds.
Professional Installation Guide.
RESET button.
applicable unit.
insufcient.
voltage variation from service
the home. If problem is due to
fault should correct itself when
• Press and hold the RESET button
• Initiate a humidistat call for
light to return.
cord input voltage before and
voltage should not drop below
operates properly.
No. of
Light
Fault
Steps to Fix
HVAC Technician Only
• Unplug TrueSTEAM and remove
Honeywell Truesteam Humidifier Problems
• Validate proper wiring to
diagrams in the installation guide
• Ensure proper connection quality
• Inspect R and C wires at the
no breaks and good connection
• Hook AC volt meter across
(N.O.) terminal and R.
reduce system setpoint.
Volt Meter
• Once blower starts, validate 20-
• If voltage is not present, check
Differential pressure switch may
(away from duct bends, etc), or it
• If voltage is present, continue to
airflow monitoring.
airflow switch N.O. terminal and
• Turn humidistat off.
(down) position.
plug in unit. Press the RESET
• Set thermostat FAN to off and
• Set humidistat call and monitor
• When sound of blower clears,
AC volt meter reads 20-30VAC.
takes longer than 2 minutes,
switch, where state change is
TROUBLESHOOTING
Red
Blinks
Description
To be Performed by Professional
6Water
sensed.
or submerged in water at the
condensate pump if used.
drain/overflow line. If continuous
the cleaning steps in the
Honeywell Truesteam Humidifier Recall
(69-2036).
Honeywell Truesteam Humidifier Hm512 Recalls
and monitor operation.
• Loosen cover screw and remove
• Disconnect water level sensor
clamp to remove water sensor
• Clean probes using warm
is exposed. It is OK to use steel
• Reassemble the sensor
and secure cover.
button.
sensor assembly and/or solenoid
7HVAC power
• Turn humidistat off.
FAN setting turns the blower on.
If circuit is tripped, reset or
• If fault persists, unplug
• Validate proper TrueSTEAM
installation guide (69-2036).
of the wires.
HVAC equipment board, ensuring
if wire nuts are used.
C to validate 20-30VAC is present.
to close furnace interlock switch.
unit in. Press the RESET button.
replace unit.
control TrueSTEAM, it is not
power. DIP 4 may be turned on
Related Products for Honeywell TrueSTEAM HM512
Related Manuals for Honeywell TrueSTEAM HM512
Honeywell TrueSTEAM HM512: Frequently viewed Manuals