Navien NPE Fault codes & diagnostics

1 fault code with plain-English explanations, severity ratings, DIY guidance, and repair cost estimates.

Combi Natural GasLPG 17-30 kW 2012-present

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Fault codes

All 1 documented codes

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760

Your boiler is reminding you that it is time for its routine maintenance flush to clear out a build-up of minerals from your water supply.

Low Engineer only £100-180
Full explanation for 760