Multi-Zone Outdoor Condenser Owners Manual

DURASTAR.COM
11
TROUBLESHOOTING
When troubles occurs, please check the following points before contacting a repair company.
PROBLEM POSSIBLE CAUSES SOLUTION
Poor cooling
performance
The heat exchanger on the indoor
or outdoor unit is dirty
Clean the affected heat exchanger
The air inlet or outlet of either unit is
blocked
Turn the unit off, remove the obstruction
and turn it back on
Low refrigerant due to leak or long-
term use
Check for leaks, re-seal if necessary and
top off refrigerant
Poor heating
performance
The outdoor temperature is
extremely low
Use auxiliary heating device
Low refrigerant due to leak or
long-term use
Check for leaks, re-seal if necessary and
top off refrigerant
The unit
starts
and stops
frequently
There’s too much or too little
refrigerant in the system
Check for leaks and recharge the system
with refrigerant
Incompressible gas or moisture has
entered the system
Evacuate and recharge the system with
refrigerant
The compressor is broken Replace the compressor
The voltage is too high or too low Install a manostat to regulate the voltage
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 Replace the fuse
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.