45MAHAQ: Installation Instructions
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
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Table 14 — Common Issues
NOTE: If your problem persists after performing the checks and diagnostics above, turn off your unit immediately and contact an authorized
service center.
When troubles occur, check the following points before contacting
a repair company.
CAUTION
PROBLEM POSSIBLE CAUSES SOLUTION
Poor Cooling Performance
Temperature setting may be higher than ambient
room temperature
Lower the temperature setting
The heat exchanger on the indoor or outdoor unit is
dirty
Use Clean function by remote control to
clean the affected heat exchanger
The air filter is dirty Remove the filter and clean it according to instructions
The air inlet or outlet of either unit is blocked Turn the unit off, remove the obstruction and turn it back on
Doors and windows are open
Make sure that all doors and windows are closed while
operating the unit
Excessive heat is generated by sunlight
Close windows and curtains during periods of high heat or
bright sunshine
Too many sources of heat in the room (people,
computers, electronics, etc.)
Reduce amount of heat sources
Low refrigerant due to leak or long-term use Check for leaks, re-seal if necessary and top off refrigerant
SILENCE function is activated (optional function)
SILENCE function can lower product performance by
reducing operating frequency. Turn off SILENCE function.
The unit is not working
Power failure Wait for the power to be restored
The power is turned off Turn on the power
The fuse is burned out Call service center to replace the fuse
Remote control batteries are dead Replace batteries
The Unit’s 3-minute protection has been activated Wait three minutes after restarting the unit
Timer is activated Turn timer off
The unit starts and stops
frequently
There’s too much or too little refrigerant in the
system
Call a service center to check for leaks and recharge the
system with refrigerant.
Incompressible gas or moisture has entered the
system.
Call a service center to evacuate and recharge the system
with refrigerant
The compressor is broken Call a service center to replace the compressor
The voltage is too high or too low Install a manostat to regulate the voltage
Poor heating performance
The outdoor temperature is extremely low Use auxiliary heating device
Cold air is entering through doors and windows Ensure all doors and windows are closed during use
Low refrigerant due to leak or long-term use
Call service center to check for leaks, re-seal if necessary
and top off refrigerant
Indicator lamps continue
flashing
The unit may stop operation or continue to run safely. If the indicator lamps continue to flash or error codes appear,
wait for about 10 minutes. The problem may resolve itself.
If not, disconnect the power, then connect it again. Turn the unit on. If the problem persists, disconnect the power
and contact your nearest customer service center.
Error code appears and begins
with the letters as the following
in the window display of the
indoor unit:
E(x), P(x), F(x)
EH(xx), EL(xx), EC(xx)
PH(xx), PL(xx), PC(xx)
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