Medium
94 on Keston 30C

Your boiler is successfully heating your radiators, but a component failure is preventing it from providing hot water to your taps.

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

NO HW BUT CH ON

From this model's manual
Verified against the Keston/Keston 30c 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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Related fault codes

75View →104View →

All 31 fault codes on the 30C

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

8182838485868788899091929395BCC FaultFalse Flame LockoutFan FaultFlame LossFlow Temperature Overheat LockoutFlow Thermistor FaultIgnition LockoutLow mains voltageLow water pressureNo water flow lockoutOutside sensor faultOverheat lockoutPCB FaultReset the boilerReturn Thermistor FaultToo many resets

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