Kenmore Range Error Code 73

Error code 73 indicates a power supply defect detected in the Induction Housing Assembly on the right side of the cooktop. The control board has identified an abnormal power condition affecting the right-side cooking zones and has disabled them as a protective measure. Diagnosis begins with inspecting all cables and connections on the Large Filter Circuit Board.

The right-side induction cooking zones should be considered inoperative and should not be used while code 73 is active, as the control system has detected a power supply fault in that section. The left-side zones may still function, but continued use of the appliance before the fault is diagnosed and repaired is not recommended. Unresolved power supply defects in induction electronics can worsen over time and pose a risk of further component damage.

Repair costs vary depending on the root cause. If the fix is simply reseating a loose connector, a service call fee of roughly $75 to $150 may be the primary expense. Replacing the Large Filter Circuit Board or an induction inverter board can bring the total parts and labor cost to a range of $200 to $500 or more, depending on parts availability and local labor rates. Getting a diagnostic assessment before committing to repairs is advisable.

Some causes of code 73, such as a loose wiring connector, can be addressed by a careful DIYer comfortable working with appliance electronics after the range is fully disconnected from power. However, testing voltage levels, diagnosing circuit boards, and replacing internal components inside an induction housing assembly involves high-voltage capacitors that can retain a dangerous charge even after power is disconnected. For most homeowners, this repair is best left to a qualified appliance technician.

Disconnecting the range from power for several minutes and restoring power may temporarily clear the error display, but the code will return if the underlying power supply fault still exists. A reset does not repair loose connections, failed components, or wiring damage. Resetting is useful as a first step to confirm whether the fault is intermittent, but a proper diagnostic inspection is still required.