Comfort-Aire VMH 36 Series - Manual (Page 14)

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Owner’s Manual VMH 30/36 SERIES Heat Controller, Inc.
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TROUBLESHOOTING TIPS
Troubleshooting Tips
Notes: Do not attempt to repair the unit yourself.
Always consult an authorised service provider.
7. Dripping water may generate on the surface of the indoor unit when cooling in a relativley high
humidity (higher than 80%). Adjust the horizontal louver to the maximum air outlet position and
select HIGH fan speed to avoid this.
8. Heating mode
The air conditioner draws in heat from the outdoor unit and releases it via the indoor unit
during heating operation. When the outdoor temperature falls, heat drawn in by the air
conditioner decreases accordingly. At the same time, the heat load of the air conditioner
increases due to a larger difference between indoor and outdoor temperatures. If a
comfortable temperature can't be achieved by the air conditioner, we suggest you use a
supplementary heating device.
9. Auto-restart function
Power failure during operation will stop the unit completely.
For the unit without Auto-restart feature, when the power restores, the OPERATION indicator
on the indoor unit starts flashing. To restart the operation, push the ON/OFF button on the
remote controller.
For the unit with Auto-restart feature, when the power restores, the unit restarts automatically with
all the previous settings preserved by the memory function. For some models, the louver will open
automatically to a pre-programmed position.
10.
isconnect the unit with power and then re-connect
the unit with power again. Push the ON/OFF button on the remote controller to restart operation.
Electronic equipment which was radio transmitters may interfere with the units signals and cause it
to malfunction, if in close proximity. If this occurs, d
Ensure the unit is far away from and electrical interface sources to prevent this.
OPERATION TIPS
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Stop the air conditioner immediately if one of the following errors occur. Disconnect the
power and contact the nearest authorized servicer.
Fuse blows or circuit breaker trips frequently.
Trouble
Malfunctions
Unit does not
start or operate
at all
Fan is operating
but unit is
poorly cooling
or heating
Cause
Wait or cancel timer setting.
Set temperature correctly.
If the problems persist after performing these checks, or if you notice burning smells, or the
problem can’t be resolved by disconnecting and reconnecting power, then immediately stop
operating the unit and disconnect the power. Then call an authorized servicer.
What should be done?
If the following error codes appear on the LED display, disconnect the power and contact
an authorized servicer: E0,E1,E2,E3,E4,E5,E6,E7,E8 or P0,P1,P2,P3,P4,P5, P6.
Indicator or lights flash rapidly and can not be
disconnecting the power and then connecting it in again.
stopped by
Condensation
Electrical Interference
Wait for the power to be restored, call
your local utility distributor or an
electrician to address power supply issues.
Wait approximately 3 minutes for the
compressor to turn on to begin
heating/cooling.
Replace the fuse or flip the circuit
breaker back on.
Replace the batteries and ensure
the polarities are correct.
Clean the air filter to prevent air
flow blockages.
Close the doors and windows, within
the area to be cooled or heated to
increase efficiency and performance.
Clear obstructions away first, then
restart the unit.
Is the unit’s times set incorrectly?.
Power to the unit may be interrupted.
Compressor will not restart.
Fuse may have blown out or circuit
breaker has tripped.
Batteries in Remote controller may
be dead or installed correctly.
A filter may be blocked.
Doors or Windows are open inside
the room you are to attempting to
heat or cool.
Air inlet or outlet of indoor or outdoor
unit is blocked.
Temperature setting may be set
inappropriately.
TROUBLESHOOTING TIPS