A8
Daikin
Indoor Overcurrent / Overload Protection
Indoor unit stops with A8; may be related to overcurrent or overheat
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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
Shorted indoor fan motor, Short on indoor PCB, Blocked air filter causing high current draw, Incorrect supply voltage
How to Fix / Troubleshooting
Safety first: Turn off power at the breaker and do not repeatedly reset if the error returns immediately.
Checks:
- Clean or replace the indoor air filters to reduce load on the fan.
- Inspect the indoor unit for any burning smell or visible damage.
Technician actions:
- Measure current draw of the indoor unit and compare with nameplate ratings.
- Isolate the fan motor and test for shorts to ground; replace if defective.
- Inspect and replace the indoor PCB if components are shorted or burnt.
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Repair Difficulty
Hard
4/5
Required Part
Indoor Fan Motor or Indoor PCB
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