High
E02-379 on Potterton Kingfisher MF RSL

Your boiler has detected an internal communication error with its main control unit, meaning it is unable to safely manage its heating operations.

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

User Control Board

From this model's manual
Verified against the Potterton/Potterton Kingfisher Mf Rsl 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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All 33 fault codes on the Kingfisher MF RSL

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

E02-234E02-313E02-325E02-347E02-348E02-349E02-350E02-365E02-367E02-372E02-376E02-380E03-826E03-827E78-180E78-181E78-210E78-212E78-236E78-250E78-367E78-369E82-317Flame Lock-outGreen 'Flame' ledRed LED (Lockout)Red LED (Overheat)Red LED (TTB)Red LED illuminatedRed LED illuminated (Lockout)Red LED illuminated (Overheat)Red LED is 'ON'

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