40MBDAQ: Service Manual
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
30
DIAGNOSIS AND SOLUTION (CONT.)
F0 (Overload current protection Diagnosis and Solution)
Description: An abnormal current rise is detected by checking the specified current detection circuit.
Recommended parts to prepare:
• Outdoor PCB
• Connection wires
• Compressor
•Reactor
Troubleshooting
Check the power supply.
Do any exist?
Are they within acceptable
parameters?
Are they properly connected ?
Is it in working order ?
Replace the outdoor unit .
Is it in working order?
Check system for blocks.
YES
Stop the unit.NO
Clear the blocks.
Yes
Check the compressor resistance values.
No
Replace the compressor .NO
Check the connections and wires.
YES
Ensure proper connections or
replace the wires .
NO
Check the reactor.
YES
YES
Replace outdoor PCB.
NO
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