Troubleshooting Tips - Heat Controller VMH 09 Owner's Manual

Heat Controller, Inc.

Troubleshooting Tips

Stop the air conditioner immediately if one of the following errors occurs. Disconnect the power and contact
an authorized servicer.
If any of the following error codes appear on the LED window, disconnect the power and contact
an authorized servicer: E0, E1, E2, E3, E4, E5, E6, E7, E8, P0, P1, P2, P3, P4.
Call for
Fuse blows or circuit breaker trips frequently
service if
Other abnormal situations (such as burning smells) that can't be resolved using the steps outlined
below.
Symptoms Possible Cause/Things to Check
Is there power supplied to the unit?
Fuse may have blown out or a circuit
Unit does
breaker has been tripped.
no start or
operate at
Batteries in remote controller may be dead
all
or installed incorrectly.
Is the unit's timer set?
Inappropriate temperature setting.
Air filter may be blocked
Poor cooling
or heating
(heat pump Doors or windows are open.
models only)
performance
Air inlet or outlet of indoor or outdoor unit
are blocked.
Compressor time delay has been activated
If the problem persists after performing these checks, or if you notice burning smells, or the operation
indicator light flashes repeatedly, immediately stop operation, disconnect the power, and call an authorized
service center.
OWNER'S MANUAL
What should be done?
Wait for the power to be restored or call an
electrician to address any power supply problem.
Replace the fuse or flip the circuit breaker.
Replace the batteries and ensure the polarities
are correct.
Wait or cancel timer setting.
Set temperature correctly.
Clean the air filter to prevent air flow blockages.
Close the doors or windows within the area
being cooled/heated to increase efficiency and
performance.
Clear obstructions away, then restart the unit.
Wait approximately 3 minutes for the compressor
to turn on and the unit to begin cooling/heating.
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VMH Inverter Mini-Split