Fisher & Paykel Dishwasher A1 — What It Means & How to Fix It
A1 on a display-model DishDrawer is a water-supply fault — the machine couldn't fill properly. Check the tap and you'll often be done.
What this code means
On the newer DishDrawer models with a digital display, A1 is the code for a water-supply fault: the machine couldn't draw water in properly. The manual's fix is user-side first: ensure the water supply is turned on, press once to stop the beeping, press again to clear the fault, then resume the wash program.
Documented as 'A1: Water Supply fault' in the DishDrawer user guides for display models such as the DD60D and DD24 series, with the same make-sure-the-supply-is-on steps.
Most likely causes
| Cause | How likely | DIY-fixable? |
|---|---|---|
| Tap or isolation valve off or partly open | Very common | Yes — no tools |
| Inlet hose kinked or inlet screen blocked | Common | Yes — check hose |
| Low household pressure or a shared supply line | Occasional | Partly — test another tap |
| Faulty inlet valve | Less common | No — technician job |
What you can try yourself
- Make sure the water supply to the DishDrawer is turned on — most A1 faults are exactly this.
- Check the inlet hose for kinks and the connection for leaks.
- Press once to stop the beeping, then again to clear the fault.
- Press to resume the wash program and watch whether A1 returns.
- If it comes back with the supply confirmed on, the inlet valve needs a service visit.
When to call a technician
- A1 returns every time with the tap fully open.
- No water at all despite an open, connected supply.
Typical professional repair cost: Usually free; an inlet-valve service call runs roughly $150–$250 if the supply checks don't help.
Frequently asked questions
What does A1 mean on a DishDrawer?
It's the water-supply fault on display models — the machine couldn't fill properly. The first check is always the tap: most A1 codes are a supply that's off or partly closed.
How do I clear the A1 code?
Ensure the water supply is on, press once to stop the beeping, press again to clear the fault, then press to resume the wash. That's exactly the sequence in Fisher & Paykel's manual.
Is A1 the same as U1?
Both are fill-related, but they belong to different DishDrawer generations: U1 appears on the older F-code era machines, while A1 is the alert on newer display models. Same idea — water supply — different code table.
Sources checked
Error meanings can vary by model. This guide was checked against the documentation above; use the manual for the model number on your own appliance when it differs.
Related Fisher & Paykel codes
- Fisher & Paykel Dishwasher F1 F1 on a DishDrawer is the flood-switch code — the machine has detected water where it shouldn't be, and it will keep beeping until it's dealt with.
- Fisher & Paykel Dishwasher F3 F3 on a DishDrawer flags a temperature-sensor fault — and a very hot incoming water supply is the one cause you can check and fix yourself.
- Fisher & Paykel Dishwasher F4 F4 on a DishDrawer points to the heating side — the water isn't reaching temperature. Beyond one reset, the element or sensor needs a technician.
- Fisher & Paykel Dishwasher U1 U1 is the DishDrawer fill fault — not enough water arrived in the allowed time. Most times it's the tap, a kinked hose, or a spray arm you can fix yourself.
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