High
20 on Vokera Linea 28HE

Your boiler has automatically shut down because the internal safety thermostat detected that the water temperature has risen too high.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Call an engineer soon

Book a Gas Safe engineer within 24 to 48 hours. Your boiler may be unsafe or could break down completely if left.

What the manual says

Manufacturer manual

high limit thermostat/burner

From this model's manual
Verified against the Vokera/Vokera Linea He 28 32 36 Installation 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 is a high severity fault. Stop using the boiler and call a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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Related fault codes

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All 41 fault codes on the Linea 28HE

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

101112131415212223242526272829303133343536373840414250-59607071727477787980-8392939495

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