Frigidaire Cooktop Error Code E72

E72 indicates a low voltage output from the 12V power supply located on the filter circuit board inside the 3-cook-zone induction module. The cooktop's control system monitors this voltage rail and shuts down operation when it falls below the acceptable level. This code is functionally identical to the E32 fault and is diagnosed the same way. A loose connection, corroded terminal, or failed component on the filter board are the most common causes.

No, the cooktop should not be used while E72 is active. The fault indicates that a critical internal power supply is not functioning within its rated parameters, and the unit will typically prevent normal operation to protect its electronics and the user. Continue to keep the cooktop powered off until the issue is diagnosed and resolved.

Repair costs vary depending on whether the fix involves reseating a loose connection or replacing the filter circuit board or induction module. A simple connection repair completed by a technician might cost in the range of $75 to $150 in labor. If the filter board or the full 3-zone induction module requires replacement, parts and labor combined can range from $200 to $500 or more depending on parts availability and local labor rates.

Checking and reseating cable connections on the filter board is a task a knowledgeable DIYer can attempt, but it does require disassembling the cooktop to access the induction module. If the connections appear sound and the fault persists, testing voltage output and replacing the filter board or module components involves working near high-voltage circuits and is best handled by a qualified appliance repair technician. Always disconnect power to the unit before inspecting any internal components.

Resetting the unit by cutting power at the breaker for several minutes may temporarily clear the fault display, but the code will return if the underlying cause has not been corrected. The low 12V voltage condition is a hardware issue that requires physical inspection and repair of the filter board connections or components. A reset alone is not a repair.