Unknown
118 on Potterton Ultra 28 System

Potterton Ultra 28 System fault code 118

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

What the manual says

Manufacturer manual

Primary System Water Pressure Too Low

From this model's manual
Verified against the Potterton/Potterton Ultra 12 System 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 fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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All 23 fault codes on the Ultra 28 System

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

091520284055109110117125128130133134135154160270384E118E128E133

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