NewAir
No Power / Input Power Failure
Air conditioner will not power on at all; no lights or display.
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Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
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Possible Causes
Tripped circuit breaker, blown internal fuse on control board, faulty power cord, failed main control PCB
How to Fix / Troubleshooting
Safety: Before opening the unit, unplug it from the wall. Do not bypass fuses with wire or foil.
Steps:
- Check outlet: Plug a lamp or tester into the same outlet to confirm power. Reset any tripped breakers or GFCI outlets.
- Inspect power cord: Look for cuts, burns, or kinks. If damaged, replace the power cord assembly.
- Access control compartment: Remove the electrical cover to access the main control PCB. Locate any inline fuses or board-mounted fuses.
- Test fuses: With a multimeter, check continuity across each fuse. Replace blown fuses only with the same type and rating. If a fuse blows again immediately, there is a short that must be found before further operation.
- Board replacement: If fuses and cord are good but there is still no power, the main control PCB is likely defective and should be replaced.
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Repair Difficulty
Medium
3/5
Required Part
Power Cord Assembly
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