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Copyright 2006 ICP International Comfort Products
Table 8 General System Troubleshooting Guide
SYMPTOM
PROBABLE CAUSE
CORRECTIVE ACTION
Unit Fails to Start.
Power supply to unit not connected (POWER LED
Off).
Check for proper connection of power at disconnect.
Fuse blown (POWER LED Off).
Reset circuit breaker or replace line fuse.
ON/SEND button has not been pressed.
Press ON/SEND button on remote control.
Indoor unit does not receive transmitted
commands.
Make sure that nothing is blocking the remote control
transmission to the unit.
Only Indoor Fan Works when
Cooling or Heating is Desired.
NOTE: Indoor fan runs
continuously in cooling mode.
The selected mode is Fan Only, or Cool when
heating is desired.
Check if the remote control is in the desired mode. If
not, select the correct mode (refer to User manual).
Also note that every 15 minutes (maximum) the com-
pressor will be switched minimally on for 3 minutes.
Temperature is set to a value which is too high (in
Cool mode).
Observe the temperature setting on the remote control.
Also note that each 15 minutes (maximum), the com-
pressor will be switched on minimally for 3 minutes.
Only Indoor Fan Motor and
Outdoor Fan Motor are Working.
No Cooling and/or Heating Takes
Place.
Overload safety device on compressor is cut out
due to high temperature.
Switch off power and try again after one hour.
Compressor run capacitor is burnt.
Replace compressor run capacitor.
Compressor winding shorted.
Replace compressor.
No Air Supply at Indoor Unit
(Compressor Operates).
Indoor fan motor is blocked or turns slowly.
1. Check voltage. Repair wiring if necessary.
2. Check indoor fan wheel if tight on motor shaft.
Tighten if necessary.
Indoor fan motor capacitor is burnt.
Replace indoor fan motor capacitor.
Indoor fan motor winding is burnt.
Replace indoor fan motor.
In Heat mode: Delayed start for indoor fan motor.
Normal software delay (maximum of 20 sec).
Clogged air filters.
Clean filters.
Low Capacity.
Lack of refrigerant. Ice formation on the evapora-
tor coil.
Unit must be charged (according to the nameplate)
after localizing the gas leak.
Clogged air filters.
Clean filters.
In Heat Mode, Only Compressor
Runs. Outdoor and Indoor Fan
Motors are Stopped.
A/C operating in defrost cycle.
Wait 10 minutes (maximum) until the unit resumes
normal operation.
Water Accumulates and
Overflows from Evaporator
Drain Pan.
Drain pan pipe or hose is clogged or the spout of
drain pan is clogged.
Disassemble plastic drain pipe from spout of evapora-
tor drain pan. Flush with clean water.
Unit Does Not Operate in Desired
Mode.
The unit is in the Auto. (emergency) mode.
Push button once to cancel Auto. (emergency) mode.
Faulty remote control settings.
1. If remote control symbols respond to the commands
correctly, check the unit ID Code (Standard or Alter-
native). Refer to Changing Unit ID Code in the
Owner's Manual.
2. If Cool commands are OK, but Heat symbol is
skipped on LCD, refer to
setting the remote to cooling only
or heat pump on the Owner's Manual.
3. Replace remote control.
Remote control low battery.
Replace remote control batteries.
The Unit Receives Interference
from Other Remote Control or
the Remote Control Interferes
with Other Instruments.
Common Infrared Code.
Modify the Remote Control IR transmission code.
Refer to Changing Unit ID Code
in the Owners Manual.
Power supply from outdoor unit to indoor unit is
not connected.
Printed in Israel Pg 15
