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F
f9
Moderate
Fisher & Paykel · Dishwashers
Overflow Condition Detected
Quick Answer
Error code F9 on your Fisher & Paykel Dishwashers means: Overflow Condition Detected. This is usually fixable — see the step-by-step guide below.
Affected Models
Applies to all models
DD24DCTX9NDD24DHTX9NDD24SAX9NDD24SI9NDD60DCHX9DD60SDFHX9
Likely Causes
  1. Water inlet valve is stuck open, continuously filling the drawer beyond the normal level
  2. Float switch in the drawer sump is not detecting the high water level
  3. Pressure switch or water level sensor has failed, allowing overfilling
  4. Drain hose siphoning water from the sink drain back into the DishDrawer
How to Fix It
1
Immediately turn off the water supply to the DishDrawer
2
Open the drawer and use towels or a small container to remove excess water
3
Check the float switch in the sump for free movement; clear any debris that may be preventing it from rising
4
Test the water inlet valve to confirm it shuts off when power is removed; replace if stuck open
5
Verify the drain hose has a proper high loop to prevent siphoning from the household drain
Pro Tip
This fix requires some technical knowledge. If you're unsure about any step, consider contacting support or a qualified technician.
Parts You May Need
Fisher & Paykel water inlet valve (model-specific)
Float switch assembly
Drain hose anti-siphon clip
Related Error Codes
F1F2F3F4F5
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