Thermolec ACU-STEAM, User Manual

Page: 33 / 39

Page 31
CONTRACT
OR
Number of
fl ashes
of the red light
Error Description
Humidi
fi er
Status
Actions
to
be
T
aken
by the T
echnician
Reset
OFF
No error
The humidi
fi er is working
fi ne
None
Countinuous
ON
The
fl ood sensor under the tank
senses water in the pan.
Humidi
fi er immediately suspends the
ongoing operation. Heating elements and supply valve are switched of
f.
The power
green light is blinking.
Turn power of
f. Check for leaks around the tank
clamp, SW valve and drain tube. Make sure tank arrows align and gasket is sealing properly
.
Automatic Reset when Over
fl ow pan dries up.
1
The two water level sensors are miswired or do not read the water level properly
.
Humidi
fi er attempts to operate, then stops
because of wrong information from water level sensors.
The power green light is
blinking.
Turn power of
f. Clean or replace HLS or LLS
water sensors. Check for proper wiring of HLS and LLS sensors.
Automatic Reset when switching main power ON
3
Inadequate water supply
. The
supply valve was open for more than 6 minutes.
Humidi
fi er immediately suspends the ongo-
ing operation. Heating elements and supply valve are switched of
f.
The power green
light is blinking.
Turn power of
f. Check SW valve circuit for 24V
DC at the valve. Refer to manual (p. 20) and check for proper drain installation. Make sure SW shut-of
f valve is open, SW valve is responding
and SW tube is clear of debris.
Automatic Reset after 5 min or when switching main powerOFF and ON
4
Inadequate drainage.
The tank
did not drain or the draining cycle is too long.
Humidi
fi er immediately suspends the
ongoing operation. Heating elements and supply valve are switched of
f.
The power
green light is blinking.
Turn power of
f. Check for proper drain setup
by referring to manual (p. 20). Check and clean tank, SS siphon tube and silicon drain tube if necessary
.
Automatic Reset when switching main power ON
5
The air pressure switch does not detect enough air pressure OR the high limit HST
AT
(optional) senses extremely high humidity in the duct.
Humidi
fi er immediately suspends the
ongoing operation.
The unit goes back
to normal operation as soon as the error condition disappears.
The power green
light is blinking.
Check if the FF motor is running. If not, turn FF to continuous operation. Check
fl ow sensor (pitot
tube) in duct for blockage, then make sure plastic tube is connected properly from
fl ow sensor to
PD switch under PC board in unit (see manual). Change furnace
fi lter if needed.
Automatic Reset when error conditions disappear
6
Temperature inside the tank exceeded the high temperature cut-out setting.
The high temperature cut-out has tripped. The humidi
fi er immediately suspends the
ongoing operation. Heating elements and supply valve are switched of
f.
The power
green light is blinking.
Turn power of
f.
This is a serious condition and
will likely require assistance from a service technician. Call 888-854-0995.
After pushing on the thermal cut-out button, automatic reset when switching main power ON
22. Detailed Error Codes
Legend: SS = stainless steel, FF = furnace fan, SW = supply water
, HLS = high level sensor
, LLS = low level sensor