Fisher & Paykel AquaSmart/EcoSmart and SmartDrive Code 9: display size switch mismatch

What 9 means

Code 9 appears on Fisher & Paykel AquaSmart/EcoSmart top-load washers such as the WA37T26EW and WA42T26GW, and on SmartDrive top-loaders from Phase 1 to 6. It is a size switch error: the size switch setting on the Display Module does not match the setting stored in the washer's memory. The display shows 9 and the washer will not run normally until the two settings agree.

Common causes of 9

Display Module size switch setting differs from the size stored in memory
Display Module was replaced with one set for a different model
Memory data on the control side no longer matches the display

✓ One safe check you can try

1. Unplug the washer or turn off its breaker for a full minute. 2. Restore power and press the power button. 3. Check whether 9 returns before you load any clothes. 4. If it does, do not keep restarting; call us with the model number from the lid or cabinet so we bring the right display.

! Why to stop there

The size setting lives on the display module, which cannot be changed from the front panel.
Matching the display to the stored size takes the exact model number and the right part.
We quote in writing first and back repairs with a 30-day workmanship warranty.

Opening a panel yourself does not automatically cancel a manufacturer warranty, but it can cause accidental damage, and some manufacturers set their own service conditions. Check your warranty terms, or ask us, before deciding.

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99 questions

What does the size switch do?

It tells the washer which size and model it is. If the switch on the display does not agree with the memory, the washer reports code 9.

Can a power reset fix code 9?

Sometimes a reset clears a one-time mismatch, but if the display and memory truly disagree, 9 comes straight back. That points to a display that needs checking.

What do you need to know when I call?

Give us the full model number and tell us whether the display or control was recently replaced. That lets us bring a display set for your exact washer.