E18
Magic Chef
Defrost or Harvest Heater Fault
E18 is displayed; unit may freeze water but ice sticks to the evaporator and will not drop.
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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
Open harvest heater element, Failed heater relay on control board, Broken heater wiring, Scale insulating the evaporator surface
How to Fix / Troubleshooting
Safety first: Unplug the ice maker before testing the heater circuit. Heater surfaces can be hot.
- Inspect evaporator: Look for heavy mineral scale on the evaporator plate. Clean with a manufacturer‑approved descaling solution if needed.
- Locate heater: Identify the harvest heater element attached to or near the evaporator.
- Test resistance: Disconnect heater leads and measure resistance with a multimeter. An open circuit indicates a failed heater.
- Check wiring and relay: Inspect heater wires for burns or breaks. On the control board, inspect the heater relay for damage.
- Replace components: Replace a failed heater element or damaged wiring. If the relay is defective, replace the main control board.
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Repair Difficulty
Hard
4/5
Required Part
Harvest Heater
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