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Error code reference

Fisher & Paykel Washer Error Code U2

Tub open fault; the drawer has been forced open during a wash cycle, the drawer microswitch has failed, or…

Fisher & Paykel codesFisher & Paykel washer codes

Tub open fault; the drawer has been forced open during a wash cycle, the drawer microswitch has failed, or the exhaust valve has failed open circuit.

First step from the service manual

Check if the drawer is open; if yes, shut the drawer. If no, check the microswitch in diagnostics.

The complete diagnostic procedure includes additional test steps, resistance specifications, wiring diagram references, and component test points.

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What U2 means on a Fisher & Paykel washer

The U2 error code on a Fisher & Paykel washer indicates a tub open fault, meaning the control system has detected that the drawer is not properly closed and latched during an active wash cycle. Fisher & Paykel washers use a drawer-style design where the wash tub slides out for loading. The machine relies on a microswitch to confirm the drawer is fully closed before allowing water to enter or the cycle to continue. When the control cannot confirm a closed position, it halts the cycle and triggers U2 to prevent flooding or mechanical damage.

There are three primary causes for this fault. First, the drawer may have been physically forced open during operation, either accidentally or due to an unbalanced load shifting the drawer. Second, the drawer microswitch itself may have failed electrically, producing an open circuit signal even when the drawer is physically shut. Third, the exhaust valve may have failed in an open circuit condition, which the control interprets as a tub-open state due to how the circuit is wired.

Diagnosis begins by confirming whether the drawer is actually open. If the drawer is closed and the error persists, the next step is to run the washer's built-in diagnostics mode to test the microswitch directly. A failed microswitch will not register a closed-door signal during diagnostics. If the microswitch passes, attention should shift to the exhaust valve and its wiring harness for continuity and open circuit faults.

Source: manufacturer service documentation.

Common causes of U2

  1. 01

    Drawer opened during cycle

    Wiring / connection

    The drawer was physically pulled open while the washer was running. Closing the drawer firmly and restarting the cycle will typically clear this fault.

  2. 02

    Failed drawer microswitch

    Part replacement

    The microswitch responsible for detecting drawer closure has failed electrically, sending a constant open-circuit signal to the control board. This can be confirmed by testing the microswitch through the machine's diagnostic mode.

  3. 03

    Exhaust valve open circuit failure

    Part replacement

    The exhaust valve has developed an open circuit fault in its wiring or coil, which the control interprets as a tub-open condition. Checking the valve and its wiring harness for continuity will identify this issue.

  4. 04

    Damaged or misaligned microswitch wiring

    Wiring / connection

    Wiring connected to the drawer microswitch may have become loose, pinched, or disconnected, causing an intermittent or permanent open circuit reading. Inspecting the harness connector at the switch is the first step.

See the test procedure for each cause

Frequently asked questions about U2

What does U2 mean on a Fisher & Paykel washer?
The U2 error code on a Fisher & Paykel washer indicates a tub open fault. The control system cannot confirm that the drawer is properly closed, which can be caused by the drawer being open, a failed drawer microswitch, or an exhaust valve that has developed an open circuit condition. The machine halts the cycle automatically to prevent water spillage or mechanical damage.
How do I fix a U2 error on my Fisher & Paykel washer?
Start by checking whether the drawer is fully closed and latched. If it is open, close it firmly and restart the cycle. If the drawer is closed and the error persists, enter the washer's diagnostics mode to test the microswitch. If the microswitch fails diagnostics, it will need to be replaced. If the microswitch passes, inspect the exhaust valve and its wiring for an open circuit.
Will resetting the washer clear the U2 error code?
A reset may temporarily clear the U2 code if the fault was caused by the drawer being accidentally opened mid-cycle. However, if the underlying cause is a failed microswitch or a faulty exhaust valve, the error will return once the next cycle begins. A reset alone is not a fix for component failures.
Is it safe to use my washer while it shows a U2 error?
No, you should not attempt to run a wash cycle while the U2 error is active. The fault means the machine cannot confirm the drawer is sealed, which creates a risk of water leaking from the tub during operation. The washer is designed to stop the cycle precisely to prevent this, so the underlying cause should be diagnosed and corrected before resuming use.
How much does it cost to repair a U2 error on a Fisher & Paykel washer?
Repair costs depend on the cause. If the fix is simply closing the drawer, there is no cost involved. Replacing a drawer microswitch typically runs in the range of $20 to $80 for the part, plus labor if a technician is involved. Exhaust valve replacement costs can range from $40 to $120 for the part depending on the specific model, with additional labor costs if you are not doing the repair yourself.

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