GE Range Error Code 746

Error code 746 means the range detected a mismatch between two independent ADC readings for knob 6 on the wing board. The two readings diverged by more than 100 counts for at least 15 seconds, triggering the fault. This is a safety feature designed to flag unreliable knob position data before it can affect burner operation. The most likely causes are a faulty wing board, a bad connection, or a worn knob potentiometer.

Code 746 indicates that the control system cannot reliably read the position of knob 6, which means burner control through that knob may be unpredictable or non-functional. It is not recommended to rely on that burner for cooking until the fault is resolved. If other burners remain unaffected and function normally, those may be usable, but the range should be serviced promptly.

If the fix is limited to reseating a connector or cleaning corroded pins, there may be little to no parts cost, though a technician visit can run anywhere from 75 to 150 dollars for diagnosis alone. Replacing the wing board typically costs between 80 and 200 dollars for the part, plus labor if a technician does the work. A main control board replacement is more expensive, generally ranging from 200 to 400 dollars or more for parts and labor combined.

A knowledgeable DIYer can start by checking the wiring harness and connector at knob 6 and the wing board for loose or corroded connections, which requires no parts and may resolve the fault. If connections are secure, replacing the wing board is the next step and is a manageable repair with basic hand tools. However, if the main control board is involved, the complexity and cost of that repair may warrant calling a technician.

A power reset by unplugging the range or cycling the breaker may temporarily clear the code, but it will return if the underlying fault is still present. The fault requires that the ADC mismatch persist for 15 seconds, so the code will reappear quickly once the range returns to normal operation with the defective component still in place. A reset is useful for confirming whether the fault is intermittent, but it is not a fix.