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Error code reference

Fisher & Paykel Washer Error Code F1

The flood switch has been activated, indicating a leak in the base of the dishwasher, a fill valve failed open, a faulty flood switch, or excessive…

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What the F1 error code actually means

Your Fisher & Paykel washer has detected water in the bottom compartment of the machine where it should not be. This is a safety feature designed to stop the machine before a leak causes damage to your floors or home. You should check under and around the washer for signs of water before attempting to run it again.

Diagnostic procedure

The full F1 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 for a leak in the base of the dishwasher.
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Most common causes of F1

Ranked by how often they cause this code
  1. 1Active leak in the base of the machine
  2. 2Leaking door or tub seal
  3. 3Fill valve failed in the open position
  4. 4Siphoning through the drain hose
  5. 5Faulty flood switch

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Questions people ask about F1

What does F1 mean on a Fisher & Paykel washer?
The F1 code means the flood switch in the base of the machine has been activated. This switch is a safety sensor that detects water accumulating in the base pan where it should not be. The most common reasons include a physical leak, a fill valve stuck open, a faulty seal, or a siphoning drain hose. The machine stops operation automatically to prevent water damage.
Is it safe to keep using my washer when the F1 code is displayed?
No, you should not continue running the washer while the F1 code is active. The code indicates water has entered the base pan, and continuing to operate the machine could worsen the leak, damage flooring, or create an electrical hazard. Turn off the water supply to the machine and address the source of the water before resuming use.
How much does it cost to repair a Fisher & Paykel washer showing F1?
Repair costs vary depending on the cause. A drain hose repositioning or tightening a loose hose connection may cost little to nothing if done yourself. Replacing a door seal or fill valve typically costs between $80 and $250 in parts and labor depending on your location and the technician's rates. A faulty flood switch replacement is generally on the lower end of that range, while internal seal or tub repairs can run higher.
How do I fix the F1 error on my Fisher & Paykel washer?
Start by inspecting the base of the machine for standing water and identifying where the leak is coming from. Check hoses, door seals, and internal connections for damage or looseness. If siphoning is suspected, verify that the drain hose is routed and positioned correctly. Once the underlying cause is repaired and the base pan is dry, the error should clear.
Will resetting my Fisher & Paykel washer clear the F1 code?
A reset may temporarily clear the code, but it will return as soon as the flood switch is triggered again if the underlying problem has not been fixed. The root cause, whether a leak, faulty valve, or siphoning condition, must be identified and corrected. Simply resetting the machine without repairing the issue is not a reliable solution.

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