Frigidaire Cooktop Error Code E33

E33 indicates that the filter circuit board inside the 3 cook zone induction module is producing an improper voltage output. The cooktop's control system monitors voltage from this board to ensure safe operation, and when the output falls outside acceptable limits, it shuts down and displays E33. This is a protective fault meant to prevent damage to the induction electronics.

No. The E33 fault indicates a voltage irregularity in the induction module, and the cooktop should not be used until the fault is diagnosed and repaired. Continuing to attempt operation with an abnormal voltage condition could cause further damage to the control electronics or create a safety hazard.

Repair costs depend on what component is at fault. If the issue is simply a loose connection, a service call fee may be the primary expense, typically in the range of $75 to $150. If the filter circuit board or the 3 zone induction module requires replacement, parts and labor combined can range from $150 to $400 or more depending on parts availability and local labor rates.

The first diagnostic step is checking all cable connections on the filter circuit board in the 3 zone induction module, which a confident DIYer comfortable with appliance disassembly can attempt. However, induction cooktops carry high voltages internally and capacitors can retain a charge even after unplugging. If reseating connections does not clear the fault, replacing the filter board or induction module should be handled by a qualified technician.

A power reset by unplugging the unit or turning off the circuit breaker for a few minutes may temporarily clear the display, but if the underlying fault in the filter board or its connections is still present, the E33 code will return when the cooktop is used again. A reset alone does not fix the root cause.