DURASTAR DRA1U24S1A Owner's Manual - Page 11
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TROUBLESHOOTING
When troubles occurs, please check the following points before contacting a repair company.
PROBLEM
POSSIBLE CAUSES
Poor cooling
The heat exchanger on the indoor
performance
or outdoor unit is dirty
The air inlet or outlet of either unit is
blocked
Low refrigerant due to leak or long-
term use
Poor heating
The outdoor temperature is
performance
extremely low
Low refrigerant due to leak or
long-term use
The unit
There's too much or too little
starts
refrigerant in the system
and stops
Incompressible gas or moisture has
frequently
entered the system
The compressor is broken
The voltage is too high or too low
The unit is not
Power failure
working
The power is turned off
The fuse is burned out
NOTE
If your problem persists after performing the checks and diagnostics above, or the error
code remains, turn off your unit immediately and contact an authorized service center.
SOLUTION
Clean the affected heat exchanger
Turn the unit off, remove the obstruction
and turn it back on
Check for leaks, re-seal if necessary and
top off refrigerant
Use auxiliary heating device
Check for leaks, re-seal if necessary and
top off refrigerant
Check for leaks and recharge the system
with refrigerant
Evacuate and recharge the system with
refrigerant
Replace the compressor
Install a manostat to regulate the voltage
Wait for the power to be restored
Turn on the power
Replace the fuse
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