E4
SMEG Induction Power Module Fault / IGBT Failure

Induction zone displays E4 and will not heat

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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 IGBT on power board, Burned track on power module, Internal module overcurrent fault, Damaged snubber components

How to Fix / Troubleshooting

Safety first: Disconnect power at the breaker and wait at least 10 minutes for capacitors to discharge. Do not touch any components until you are sure they are discharged.

Steps:

  • Visual inspection: Remove the cooktop and bottom cover. Locate the power module for the affected zone. Look for burn marks, cracked components, or bulging capacitors.
  • Check wiring: Ensure the coil leads are firmly connected and not shorted to chassis or each other.
  • Module replacement: SMEG power modules are not typically repaired at component level. If there is visible damage or persistent E4, replace the entire power module with the correct SMEG part number.
  • Reassemble and test: Refit covers, restore power, and test the zone at low power first.

Warning: This repair involves high-voltage electronics. If you are not experienced, do not attempt; contact a professional technician.

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Repair Difficulty

Professional Required 5/5

Required Part

Induction Power Module
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