Maytag Dishwasher Error Code F3

F3 is a High Current Error indicating the dishwasher's control board has detected electrical current above the normal operating threshold. The machine stops as a protective measure to prevent component damage or electrical hazards. Common causes include a welded relay on the control board, shorted wiring, simultaneous activation of the heater and motor, or a power surge from the home's electrical supply.

No, it is not recommended to continue running the dishwasher while F3 is active. A high current condition can indicate a short circuit or a stuck relay, both of which pose a risk of further component damage or, in more serious cases, an electrical hazard. The machine should remain off until the root cause is identified and corrected.

Repair costs depend on the root cause. A wiring repair may fall in the range of $75 to $150 in labor if the damage is localized. Control board replacement, which is often needed when a relay has welded, typically costs between $150 and $350 depending on the part price and labor rates in your area. Getting a diagnostic assessment from a technician before committing to parts is advisable.

Some aspects of diagnosing F3 are accessible to a knowledgeable DIYer, such as visually inspecting wiring harnesses for obvious damage or burning. However, identifying a welded relay or a faulty current sensor on the control board requires disassembly and electrical testing that is best handled by a technician. Attempting repairs on live electrical components without proper knowledge is not safe.

A reset may temporarily clear the F3 code, but if the underlying cause, such as a welded relay or shorted wiring, is still present, the error will return. A reset is useful as a first step only if a one-time power surge is suspected. Repeated recurrence of F3 after resetting confirms that a component or wiring issue needs to be addressed.