950-0289revB - 34 - July 22, 2022
TROUBLESHOOTING
The first step in troubleshooting is to disconnect power for 3 minutes to allow the unit to reset.
If this does not rectify the problem, proceed with the troubleshooting chart below.
Problem
Troubleshooting
The unit does not run.
•
Is the power off?
•
Is the circuit protection device tripped?
•
Is voltage too high or low?
(Tested by a professional)
•
Is the Timer on?
•
A 3 minute delay occurs before each compressor start.
Cooling and or Heating efficiency is
not good.
•
Is temperature setting correct?
•
Are the inlet or outlet vents obstructed?
•
Is the filter clean?
•
Are windows and doors closed?
•
Is fan set to low speed?
•
Is there a heat source in the room?
Wireless remote control is not
working. (See Note 2)
•
Reset unit. Disconnect main power for 30 seconds then
reapply.
•
Is it within receiving range? Is it obstructed?
•
Replace the batteries.
•
Is remote control damaged?
Water leaking into room.
•
The air humidity is excessively high. Check to see if all
windows and doors are closed.
•
Call service Tech if not corrected by the above action.
Water leakage in outdoor unit.
•
When the unit is running in Auto Defrosting mode, ice will
thaw and drip into pan.
•
When the unit is running in HEAT mode, the water
adhered to the condenser coil drains into pan.
Noise from indoor unit emitted.
•
When defrosting is started or stopped, it will make a
sound. This is due to the refrigerant flow reversing
directions.
•
Normal refrigerant flowing in unit.
Notes:
This air conditioning system has been provided with built in self diagnostic error codes. Please refer to the
following table for error code definitions:
