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Michael McdonaldAug 9, 2025
What to do if my ACS Marvair MAA1018A blows fuses or trips the circuit breaker?
- TTina WhiteAug 9, 2025
If your ACS Air Conditioner is blowing fuses or tripping the circuit breaker, it could be due to several reasons. First, the circuit might not have enough ampacity, so refer to Chapter 2 for electrical requirements and correct as necessary. Second, there might be a short, loose, or improper connection in the field wiring, so check the wiring for errors. Third, there could be an internal short circuit or loose connection within the unit, so check the unit's wiring, referring to the wiring and schematic diagrams, and test components, especially the compressor, for shorts. Finally, excessively high or low supply voltage or phase loss (3ø only) could be the issue, so note the voltage range limitations specific to the compressor troubleshooting section.


