What F40 means (fisher paykel f40 error)
A fisher paykel f40 error is a water-flow error on the full-size built-in DW dishwasher line (DW60 / DW24) — the dishwasher is not getting the water flow it expects. F40 is NOT a DishDrawer code: it belongs to the full-size DW built-in range, and the older DW60 used E40 for the same fault. On a DishDrawer you will not see F40. A kinked inlet hose, a closed tap, or a blockage is the first thing to check before the inlet valve.
Symptoms to look for
F40 shows itself at the fill stage, because that is where the DW dishwasher measures the water arriving and decides it is short. You will usually see a slow or absent fill and a cycle that stalls before it really gets going, and the fault often appears right after a plumbing change or a fresh install. Use the signs below to confirm the problem is water reaching the machine rather than something later in the cycle.
- “F40” shows on a full-size built-in DW dishwasher
- The dishwasher fills slowly or not at all
- The cycle stalls at the fill stage
- It may follow a supply change or new install
Likely causes of a fisher paykel f40 error
A water-flow shortfall on the DW line starts at the tap and works in toward the machine. A kinked or blocked inlet hose throttles the supply, a closed tap or low household pressure starves it, the inlet valve may not be opening fully, and only rarely is the flow-meter itself misreading. The list below follows that path from the easiest external check to the internal components.
- Kinked or blocked inlet hose — flow is restricted
- Tap off or low pressure — insufficient supply
- Faulty inlet valve — the valve does not open fully
- Flow-meter fault — the control misreads flow
What you can check
The checks for F40 all live on the supply side, where you can work safely without opening the appliance. Confirm you have the right model, then trace the water from the tap along the inlet hose to the connection screen, clearing anything that restricts it. Testing the inlet valve or flow meter means probing the machine’s electrics, so leave that to a qualified technician.
- Confirm your model is a full-size built-in DW dishwasher, not a DishDrawer.
- Open the tap fully and check the inlet hose for kinks or blockages.
- Clean any inlet filter or mesh screen at the hose connection.
- If F40 persists with good supply, book service to test the inlet valve.
Parts a technician may check or replace
When F40 lingers after the supply checks out, a technician examines the inlet hose, water inlet valve, supply tap, and flow meter on the DW built-in line to find where the water is being held back. The correct part for your Fisher & Paykel dishwasher is matched from the model and serial number, and genuine components are fitted through trusted parts suppliers rather than generic substitutes so the fill is reliable and the appliance keeps its long working life. Confirming the failed part before ordering avoids replacing more than the fault actually requires.
When to call a technician
F40 on the DW dishwasher line that persists with good supply needs a technician to test the inlet valve and flow meter. When the fix calls for experienced service, book a visit through our scheduling page and a specialist technician will diagnose and repair it, backed by our 30-day labor warranty.
Prevention and care
Steady water flow keeps F40 at bay, and most of that is about the plumbing around the DW dishwasher. Route the inlet hose so it cannot kink behind the cabinet, keep the supply tap fully open, and clean the inlet mesh screen periodically so grit does not choke the flow. Have any built-in installation done to specification so the supply is correctly rated, and if F40 still appears with good pressure, note what was shown before resetting so a technician can test the inlet valve and flow meter without guesswork.
Related help and Fisher & Paykel resources
Browse other Fisher & Paykel Dishwasher diagnostics, read about Fisher & Paykel Dishwasher repair, look up your unit in the Fisher & Paykel models reference, or the related A60 heating fault on the DW line, browse service locations, or schedule a service visit. For Fisher & Paykel manufacturer documentation and model lookup, visit Fisher & Paykel at fisherpaykel.com/us.
