E4
Tower
Fan Oven Element Circuit Fault
Oven displays E4 and does not heat in fan oven mode; fan may still run.
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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-circuit fan oven heating element, Burnt element terminals, Loose wiring at element, Faulty relay on main control PCB
How to Fix / Troubleshooting
Safety first: Isolate the oven from mains power.
Steps to check:
- Element inspection: Remove the rear panel inside the oven cavity to expose the circular fan oven element. Look for visible breaks, bulges, or burn marks.
- Terminal check: From the rear of the oven cabinet, locate the element terminals. Ensure spade connectors are tight and not heat-damaged.
- Continuity test: Disconnect the element wires and measure resistance across the element. A typical Tower fan element reads 20–40 Ω. If it reads open, replace the element.
- Replace element: Unscrew the mounting screws inside the cavity, pull the element forward, transfer wires to the new Tower-compatible fan oven element, and refit.
Note: If the element tests good but E4 persists, the issue may be with the control board relay or wiring, which is best checked by a technician.
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Repair Difficulty
Medium
3/5
Required Part
Fan Oven Heating Element
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