COMFORT-AIRE B-SVH24SA-1 Service Manual page 41

Service Manual - SVH 09/12/18/24 Series
9.3.6 Overload current protection diagnosis and solution (F0)
Error Code
Malfunction conditions
Possible causes
Troubleshooting:
Check the power supply. Is it
normal?
Yes
Is there any blockage?
No
Check the compressor
resistance values. Refer to the
Compressor checking ]. Is it
[
normal?
Yes
Check the connections and
wires. Is it well connected?
Yes
Check the reactor .Is it
normal?
Yes
Replace the outdoor main PCB
F0
An abnormal current rise is detected during self-check of the
specified current detection circuit.
Power supply problems.
●
System blockage
●
PCB faulty
●
Wiring error
●
Compressor malfunction
●
No
Yes
No
No
No
Stop the unit. Check the power
supply
Clear the blockage
Replace the compressor
Correct the connections or
replace the wires.
Replace the reactor
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