950-0203-revK - 30 - March 1, 2016
TROUBLESHOOTING
The first step in troubleshooting is to disconnect power for 45 seconds 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:
1) If E7 error code occurs, see the AUTO mode section in Operators Manual on page 7 (mode conflict).
2) An audible beep will be heard, when a button is pressed, if the remote control is communicating with
the receiver.
3) This air conditioning system has been provided with built in self diagnostic error codes. Please refer to
the table for error code definitions on page 31.
