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Error Code Analysis
Fault
Description
F8
Outdoor main control board communication circuit
Communication circuit module board failure
E0
Run for the first time, check for loose power
Press overload protection bad (open circuit between
Globe valve is not fully open
Run after a period of time, shows that system into the
air or the lack of refrigerant.
J6
Module board radiating surface temperature is too high
「 6 、「 7 The ac power frequency deviation from 50 hz more than
The power supply voltage is too low, large disturbance
No code
Power panel (main control board XS303 no bad input)
The remote control no display
Cause Analysis
fault
plug connection.
protector lead)
1 hz
signal, etc
Display board cable is loose
Processing Method
Refer to the circuit diagram, outdoor to ensure
communication circuit device without welding, welding,
control circuit diagram tagging model of device
parameters such as resistance, voltage measurement,
if the device is damaged, please replace the same type
of device.
Replace the module board
If there is loose connection, please plug again.
Replace the compressor overload protection
To open it
Emptying of the refrigerating system (or vacuum),
recharging, refrigerant.
Make sure that the wiring harness between compressor
module and the radiator, not blocked, no cracks, tighten
screw fastening module board in place;To ensure that the
outdoor fan is functioning properly;
To ensure the power frequency of 50 + 1 HZ
Use 3 kva stabilizer, if invalid replace module board
Replace the power supply board
Assure that cable plug is good at both ends
Replace the remote control battery, if invalid replace
remote control.
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