How to Fix / Troubleshooting

Safety first: Unplug the cooker. Do not attempt to operate if you smell burning or see smoke.

Power cycle: Leave the unit unplugged for 30 minutes, then plug back in and test. If E7 appears immediately, the fault is likely permanent.
Visual inspection: Remove the outer housing to access the control board. Look for burnt components, darkened areas, or bulging capacitors.
Check connectors: Reseat all connectors to the board (sensor, heater, power input, display) to rule out a poor connection.
Surge damage signs: If the error started right after a storm or tripped breaker, the board is likely damaged beyond simple repair.
Replace control board: The practical fix is to replace the main control PCB with a compatible Aroma board. Transfer each connector one at a time to avoid miswiring.
Do not bypass safety circuits: Never jumper around sensors or fuses to clear E7; this can cause fire or electric shock.

E7 appears on the display and the cooker will not start; sometimes occurs after a power surge or lightning event.

Possible Causes