What A1 means (fisher paykel a1 error)
On the newest-generation DishDrawer (DD60 / DD*A / DD*C), a fisher paykel a1 error (equivalent to U1) is a water-supply problem — low or no incoming water. These newer drawers still drive both wash and drain from a single SmartDrive direct-drive motor, but they report faults as lettered codes on a display rather than the blink patterns of older units, so an A1 should be matched to your specific DishDrawer rather than read off an older chart. Check the hoses, that pressure is adequate, the filters, and the fill valve. Several of these are owner-level checks.
Symptoms to look for
Because A1 is the newer drawer’s way of saying it cannot draw enough water, the symptoms cluster around the fill stage. The display calls A1 directly, but you may also notice the cycle hesitating at fill or washing that comes out poor because the tub never reached its proper level. Lining up these observations against the list below confirms you are dealing with a supply shortfall rather than another DishDrawer fault.
- “A1” shows and the drawer does not fill
- The cycle stalls at fill
- It may follow a supply change
- Washing is poor from low water
Likely causes of the fisher paykel a1 error
An A1 always traces back to water failing to arrive in adequate volume, so it helps to follow the supply line from the wall to the valve. Checking the tap and pressure first, then the inlet hose and filter, then the fill valve itself keeps the simple household causes ahead of the parts that need a specialist technician and the right Fisher & Paykel component.
- Tap off or low pressure — insufficient supply
- Kinked inlet hose — flow is blocked
- Blocked inlet filter — the screen is clogged
- Fill valve fault — the valve does not open
What you can check
Run through the steps below in order and record what each one shows, because that history shortens the diagnosis if A1 turns out to need service. Everything here stays on the incoming-water side of the drawer, so there is no call to open the SmartDrive assembly or touch live wiring — if a step heads that way, stop and let a technician finish.
- Open the tap fully and check the inlet hose for kinks.
- Clean the inlet filter at the hose connection.
- Confirm the home water pressure is adequate.
- If A1 persists, book service to test the fill valve.
Parts a technician may check or replace for the fisher paykel a1 error
When the household supply checks out but A1 stays on, a technician turns to the parts that control filling — the water supply, inlet hose, inlet filter, and fill valve. Fill valves and inlet fittings differ between the newer DD60 and DD*A/DD*C builds, so the technician reads your model and serial number and sources the matching part from established suppliers, restoring the fill circuit with the correct component instead of a generic valve that might under-flow or weep. Verifying which item in the fill chain has actually failed before fitting it keeps the A1 repair tight to exactly what the code is reporting.
When to call a technician for the fisher paykel a1 error
A1 that persists with good supply needs a technician to test the fill valve. When the fix calls for specialist service, book a visit through our scheduling page and an experienced, qualified technician will diagnose and repair it, backed by a 30-day labor warranty.
Prevention and care
Heading off another A1 is mainly about keeping water flowing freely into the newer DishDrawer. Rinse the inlet filter when you service the wash filters, keep the inlet hose clear of kinks behind the cabinet, and make sure the tap stays fully open after any work on the kitchen plumbing. A stable, correctly pressured supply keeps the SmartDrive control from reading an out-of-range fill, and an installation done to specification avoids pinched hoses. Should A1 reappear, note exactly what the display showed before you reset it so a technician can confirm the supply fault without guesswork.
Related help and Fisher & Paykel resources
If the display keeps calling A1 at fill, compare it with other Fisher & Paykel Dishwasher diagnostics, see how a proper Fisher & Paykel Dishwasher repair proceeds, find your newer drawer in the Fisher & Paykel models reference, and read the related write-up on a DishDrawer that will not fill. From there, check service locations near you or schedule a service visit to test the fill valve. For Fisher & Paykel manufacturer documentation and model lookup, visit Fisher & Paykel at fisherpaykel.com/us.
