Unknown
F.01 on Vaillant Home Regular 12

Vaillant Home Regular 12 fault code F.01

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

What the manual says

Manufacturer manual

Fault: Return temperature sensor - NTC plug not plugged in or has come loose, multiple plug on the PCB not plugged in correctly, interruption in cable harness, NTC sensor defective

From this model's manual
Verified against the Vaillant/Vaillant Home Regular Installation And Maintenance installation & service manual.
Plain-English guidance below. Severity, DIY steps, costs and parts are our interpretation to help you act, not text from the manual.

Engineer required

This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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All 33 fault codes on the Home Regular 12

Seeing a different code? Every code this model can display, in one place.

F.00F.10F.11F.13F.20F.23F.24F.25F.27F.28F.29F.32F.33F.49F.61F.62F.63F.64F.65F.67F.68F.70F.71F.72F.77F.78F.83F.84F.85F.86F.87F.88

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