Error code reference

Fisher & Paykel Dishwasher Error Code U1

Fill fault: the motor has not primed after a given time, possibly due to water supply not turned on, siphoning, spray arm not in place, excessive foaming, fill valve failed closed, or machine set to HP on low pressure supply.

SourceFisher & Paykel DishDrawer V2 - Full Service Manual (DD601/DS601)p. 21, 27

Diagnostic procedure

The full U1 procedure

Step 1 is visible so you can confirm you are on the right page. The remaining steps, the ones that tell you whether to actually replace a part, unlock with any pass.

MyPros+ · DiagnosticsStep 1 preview
1
First diagnostic step
Check if the water pressure is above 50kPa; if below, change the programme from HP to LP.

SourceFisher & Paykel DishDrawer V2 - Full Service Manual (DD601/DS601)p. 21, 27

More steps, wiring diagram references, and verified part numbers
Includes expected resistance and voltage values, connector pinouts, and supersession notes for replacement parts.
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Where this code is documented

30 manuals in the MyPros+ library document this code for Fisher & Paykel dishwasher.

Models covered by the manuals that document this code

More models are covered than are listed here.

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