Oven
F22
The F22 error code on a Zanussi oven indicates a fault with the door lock mechanism or door lock switch — it’s a moderately serious fault that will prevent the oven from operating safely until resolved.
What does this error mean?
The F22 code means your Zanussi oven’s control board has detected that the door lock is either stuck, not engaging correctly, or sending a faulty signal. This most commonly occurs on models with a pyrolytic (self-cleaning) function, where a secure door lock is a safety-critical requirement. The oven will typically refuse to start or will stop mid-cycle until the fault is cleared.
Est. repair cost
£80–£150 professional repair; £15–£45 DIY if limited to door hinges or a lock switch replacement
🔍 Likely causes
🛠️ Step-by-step fix
Power cycle the oven: switch it off at the wall socket, wait 5 minutes, then switch it back on. This clears temporary software faults and costs nothing.
Inspect the oven door: open and close it firmly several times. Check for visible sagging, warping, or anything physically preventing it from closing flush against the seal.
Check for debris around the door lock: using a torch, look at the top-left or top-right corner of the oven door frame (where the lock engages) for food residue or carbon build-up after a pyro clean. Clear any obstruction with a dry cloth — oven fully cooled and unplugged first.
Check the door hinges: if the door drops noticeably when open, the hinges are worn. Replacement Zanussi-compatible hinges cost £15–£35 per pair online (AO Spare Parts, eSpares, or 4ourhouse). This is a manageable DIY job on most models.
If the error persists after the above steps, do not attempt to open the door lock assembly or touch wiring inside the appliance — this requires a qualified engineer.
If your oven is stuck mid-pyrolytic cycle with the door locked and F22 showing, do not force the door open. Power off at the wall and allow the oven to cool completely (up to 1–2 hours) — the lock should disengage automatically once cool.
📞 When to call a professional
Call a qualified appliance engineer if the F22 persists after a power reset and basic door inspection, or if the door remains locked after the oven has fully cooled. Tell the engineer: ‘My Zanussi oven is showing an F22 error — I believe it’s a door lock fault.’ Replacing a door lock assembly or diagnosing a PCB issue is not a safe DIY task as it involves internal wiring in a high-voltage appliance.
⚖️ Repair or replace?
A professional repair for an F22 door lock fault typically costs £80–£150 in the UK, including parts and labour. If your Zanussi oven is under 8 years old, repair is almost always the better value. If it’s over 10 years old and the control board is at fault (not just the lock), replacement may make more financial sense — a comparable Zanussi electric oven costs £350–£600 new.