Low
138 on Alpha E-Tec Plus NX

Your boiler is currently running a specialized drying programme for a new underfloor heating installation, which is a normal process and not a fault.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Monitor it

This is a minor fault. Keep an eye on it and mention it at your next annual boiler service. Reset the boiler and see if it clears.

What the manual says

Manufacturer manual

Screed heater in progress

Shared across the Alpha E-Tec Plus range
This code is shared by the boilers in this range, which use the same control board. It may not be printed in this exact variant’s 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 39 fault codes on the E-Tec Plus NX

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

010203040506070810121516202324272931363738434445464748495160617075768388 8898139

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