Carrier 40MAQ Series Service Manual page 44
High- wall ductless split system
sizes 09 to 30
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Also See for 40MAQ Series:
- User manual ,
- Installation instructions manual (15 pages) ,
- Owner's manual (12 pages)
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Over voltage or too low voltage protection diagnosis and solution (P1)
Error Code
Malfunction decision conditions An abnormal voltage rise or drop is detected by checking the specified voltage detection circuit.
Supposed causes
Troubleshooting:
P1
S
Power supply problems
S
System leakage or block
S
PCB faulty
44
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