How to Run Maytag Dishwasher Diagnostic Mode

What the test actually checks#

Once you enter service mode the board steps through the fill valve, circulation pump, drain pump, heating element, drying fan, and detergent dispenser, and it displays any faults logged during recent cycles. Reading those two things together, the stored code plus what you see and hear during each forced test, is what turns guesswork into a confident diagnosis.

Before you start#

Safety warning: The dishwasher will activate components during diagnostic mode (pumps, heater, fill valve). Keep the door closed during the test. Do not reach into the tub during diagnostics.

Step-by-step#

1 - Idle the machine. Make sure no cycle is running; if one is, press Cancel or Drain and let it finish. The panel must be in its idle state with the door closed. A completely dead panel means you have a power fault to solve first.

2 - Enter the sequence. Press any three different buttons in a repeating 1-2-3, 1-2-3, 1-2-3 pattern within 8 seconds, for example Heated Dry, Normal, Heated Dry, Normal, Heated Dry, Normal. Each press must register, and the whole sequence must finish inside the 8-second window.

3 - Confirm entry. When the pattern is accepted, every LED and display segment lights at once for about 5 seconds. If they do not all light, wait 30 seconds and try again a little faster.

4 - Read the stored codes. After the all-lights flash, the display shows any logged faults in F#E# form, cycling through them if several are stored, or reads 0-0 when clear. Write down everything shown.

5 - Step through the component test. Press Start to advance, or let each test time out on its own after roughly 10 to 15 seconds. The order is fill valve, then circulation pump, then drain pump, then heater, then drying fan, then dispenser. A component that never activates in its slot is the failed one.

6 - Watch and listen to each stage. You should hear water flow on the fill test, spray-arm pressure on the circulation test, and a distinct hum on the drain test; the tub warms after the heater test, the fan whirs, and the dispenser clicks. Silence where there should be action pins the fault.

7 - Exit. Press Cancel or Drain, or simply open the door. The machine drains any water it added and returns to normal.

8 - Interpret. Combine the code with the test result. An F6E4 plus a heater test that never warms is a confirmed heating-element failure; an F9E1 plus a silent drain test is a drain-pump failure; an F5E1 with a latch that clicks mechanically points to a failed latch switch.

Complete Maytag error-code reference#

The first digit after the F names the system (1 control, 2 fill, 3 temperature, 5 door, 6 heater, 7 motor, 8 or 9 drain); the digit after the E pins the specific fault.

Model-specific notes#

PowerBlast is a software cycle variation (higher pump speed, longer heat) rather than extra hardware, so it has no separate test. The Dual Power Filtration system is purely mechanical and does not appear in diagnostics, but clogged filters can overwork the circulation pump and eventually trip an F7E1.

Need professional help?#

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