What this error means
Pressure sensor fault — the machine cannot detect any water level in the drum
The F10 error means the pressure sensor has completely stopped responding — it is not sending any water level signal to the control board at all. This is distinct from F04 where the sensor sends an incorrect signal. F10 most commonly indicates a disconnected or broken pressure hose, a failed pressure sensor, or a wiring fault to the sensor. It can also appear if the pressure hose stub on the drum has become completely blocked.
What you'll need first
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Step-by-step
Symptoms to look for
- Machine fills then pauses without beginning to tumble
- Programme stops during the fill phase with F10 displayed
- Machine fills to an unusually high level before faulting
- F10 appears on every cycle without exception — unlike F04 which may be intermittent
Diagnostic steps
Unplug the machine and hold the power button for 10 seconds. Leave unplugged for 60 seconds. Plug back in and run a 40-degree programme. If F10 clears and the machine fills normally, the fault was a temporary signal dropout. Monitor over the next few cycles.
With the machine unplugged, remove the top panel by undoing the two rear screws. Trace the narrow pressure hose from the drum body stub up to the pressure sensor. Check that the hose is still connected at both ends — it can pull off either stub fitting and produce an immediate total signal dropout.
Disconnect the hose from both the drum stub and the pressure sensor. Blow firmly through the full length — for F10 you are looking for a complete blockage rather than a partial restriction. If no airflow passes at all, the hose is fully blocked. Flush it with warm water to clear the obstruction, then dry it fully before refitting. Clear the drum stub with a cotton bud or fine brush.
With the hose disconnected and the wiring connector removed from the sensor terminals, test across the terminals with a multimeter. Blow gently into the hose port — the resistance should change as air pressure is applied. For F10, a sensor that reads OL in all states and shows no change when blown into has failed completely.
Trace the wiring from the pressure sensor to the main harness. Check the connector is fully seated and the wiring is not chafed, pinched, or showing corrosion on the pins. Disconnect and firmly reconnect the connector.
Push the pressure hose firmly onto both stubs. Replace the top panel and run a 40-degree programme. The drum should fill normally, the programme timer should begin counting and F10 should not return.
When to call an engineer
- Pressure hose drum stub is completely blocked with hardened limescale — soaking required
- Pressure sensor reads OL in all states with no change when pressure is applied — sensor has failed
- Wiring connector to pressure sensor is corroded and cannot be fully reseated
- F10 persists after hose clearing and sensor replacement — control board input circuit fault
Frequently asked questions
What is the difference between F10 and F04 on an Indesit washing machine?
Can a disconnected pressure hose cause F10?
Is there an overfill risk with F10?
Can I reattach a disconnected pressure hose myself?
🎯 What is likely causing this fault?
⚠️ Estimates based on common faults — not a guaranteed diagnosis. Always verify before ordering parts.
Parts you may need
Enter your model number to filter results to your exact machine
Usually found on a label inside the door frame or on the back panel of the machine.
| Part | Approx. UK Cost | Find it |
|---|---|---|
| Pressure Switch | £15 - £30 | 🏷️ eBay UK → |
| Pressure Switch | £20 - £30 | 🛒 Amazon UK → |
| Pressure Switch Hose | £5 - £15 | 🏷️ eBay UK → |
ℹ️ Prices are approximate. Always check the part number matches your model before ordering. Not sure of your model number? Find out how to locate it here.