Maytag Dishwasher Control Board Replacement

There are actually two boards, and knowing which failed is half the job.

Two boards, one "control board"#

The main board — behind the lower kickplate or inside the door — does the power work: it switches relays for the wash motor, drain pump, fill valve, and heating element. The user-interface board behind the top-panel buttons handles input and the display. Most people mean the main board, but a failed UI board looks much the same from the front.

Maytag's PowerBlast and Extra Power cycles push roughly 30 percent more current through the main board's wash-motor relay than a Normal cycle. Over thousands of runs that extra load wears the relay contacts — the failure mode that makes Maytag boards a little more failure-prone than plain Whirlpool boards on the same platform.

Signs the board is failing#

• Buttons do nothing or start the wrong cycle — degraded relay contacts misfire the sequence.
• F-and-E error codes with no mechanical cause — pull them in diagnostic mode before assuming the board.
• A mid-cycle shutdown with no code — the board's thermal protection trips when a relay overheats.
• The heating element never runs during drying — the drying relay has failed while the wash relays still work, leaving clean but wet dishes.
• A burning smell at the kickplate — a scorched relay contact; cut power and replace the board.

Enter diagnostic mode with the three-button sequence on the label inside the console. If it stores F6 E1 through E4 codes, the link between the main and UI boards has failed — you may need both boards or just the ribbon cable between them.

Replacing the main board#

1. Cut power at the breaker — Maytag dishwashers are often hardwired, so unplugging may not be enough.
2. Remove the lower kickplate (two 1/4-inch hex screws) to reach the board in its housing on the right.
3. Photograph the 4–6 connectors — they look alike but carry different voltages, and a swap destroys the new board instantly.
4. Note the ribbon-cable orientation; these flat cables have a definite top and bottom.
5. Release the plastic retention clips (some newer units use Phillips screws).
6. Move any heat sinks or thermal pads over to the new board — they don't come with it.
7. Seat the new board and press each connector until it clicks; a partial seat mimics a defective board.
8. Rebuild the kickplate, restore power, and confirm zero stored codes in diagnostic mode.
9. Run a full Normal cycle and check the drain pump, the drying-cycle heat, and a clean finish.

Tools: 1/4-inch hex driver, Phillips #2, Torx T20 (for the console if you're doing the UI board), and a phone for photos.

Main board or UI board?#

This is the usual misdiagnosis. If cycles run correctly once started but the buttons act up, it's the UI board. If the buttons respond fine but the machine won't execute cycle steps — motors idle, valves shut, no heat — it's the main board. One Maytag wrinkle: the Dual Power Filtration turbidity sensor feeds the main board, so a bad main board can misread it and stretch cycles or skip rinses, and the chopper-blade motor runs off a main-board relay too.

Parts and cost#

Maytag boards carry Whirlpool W10 or WP numbers — the identical board under the Whirlpool label often costs less, so search both. Check the 10-year limited parts warranty first, too; your board may still be covered.

Making it last#

Boards run about 8–12 years, cut short mainly by relay wear from heavy PowerBlast use, plus power surges and steam sneaking past a tired door-vent seal. A surge protector on the circuit, an annual look at that vent seal, and a yearly diagnostic-mode check all help catch trouble before the board dies outright.

Maytag dishwasher repair across Sacramento and the Bay Area — our technicians arrive with Maytag-specific parts. Book a same-day visit