E13 error and the unit powers off unexpectedly when heating starts.
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.
Possible Causes
How to Fix / Troubleshooting
Safety first: Unplug the unit immediately. Do not continue using an appliance suspected of electrical leakage.
Inspection:
- Remove the housing and inspect all wiring near the heater and fan for melted insulation or contact with sharp metal edges.
- Look for signs of arcing or burn marks on the chassis and around wire clamps.
- Check the heating element for cracks or areas where the sheath has split.
Corrective actions:
- Replace any damaged wiring harnesses and secure them with proper clips and grommets.
- If the heater shows visible damage or tests with low resistance to chassis ground, replace the heating element assembly.
- If no physical faults are found but E13 persists, the ground fault detection circuit on the control board may be overly sensitive or defective; replace the main control board.
Warning: Ground faults are a serious shock hazard. If you are not trained to test insulation resistance, contact a professional technician.
Repair Difficulty
Required Part
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