Medium
F51 on ECA Confeo Premix HM

Your boiler has detected a problem with the temperature sensor for your solar heating system, which is causing the unit to stop operating as a precaution.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Book a service

This fault should be looked at by a Gas Safe engineer within the next week or two. It may get worse if left.

What the manual says

Manufacturer manual

PT1000 Solar Sensor Error (blocking) — PT1000 solar sensor may be defective; press Reset; if persists notify ECA authorised service

From this model's manual
Verified against the Eca Confeo Premix Hm installation & service manual, page 43.
Plain-English guidance below. Severity, DIY steps, costs and parts are our interpretation to help you act, not text from the manual.

DIY fix possible

Locate the 'Reset' button on the boiler control panel.Press and hold the button for 3 seconds to clear the fault.If the error returns immediately or frequently, contact a qualified technician to check the sensor wiring.

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Related fault codes

F50View →F52View →

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