F30
Zanussi Thermostat / Temperature Regulation Fault (Analogue Models)

Oven shows F30 and temperature regulation is erratic or absent

Advertisements

Safety Warning

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

Advertisements

Possible Causes

Faulty mechanical thermostat, Worn thermostat contacts, Capillary sensor bulb damaged or out of position, Loose thermostat wiring

How to Fix / Troubleshooting

Safety first: Isolate the oven from mains power before removing the control panel or thermostat.

Step-by-step checks:

  • 1. Confirm model type: This fault typically applies to Zanussi ovens with a mechanical thermostat knob rather than full electronic control.
  • 2. Inspect capillary bulb: Inside the oven cavity, locate the thin metal capillary tube and bulb. Ensure it is clipped in place and not touching elements directly.
  • 3. Test thermostat continuity: Remove the thermostat from the control panel, disconnect wires, and test continuity between common and output terminals while turning the knob. Contacts should open and close smoothly.
  • 4. Replace thermostat: If contacts are intermittent or stuck, fit a new Zanussi oven thermostat of the correct temperature range. Carefully route the capillary tube without kinking it.

Warning: Do not bend the capillary tube sharply; this can permanently damage the thermostat.

Advertisements

Repair Difficulty

Medium 3/5

Required Part

Oven Thermostat (Mechanical)
Check Price on Amazon

We may earn a commission from links on this page.

Advertisements