Low
LP on Johnson Starley Warmcair DW

Your boiler is currently running in a special test mode used by engineers to check its performance and it is not a technical 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

Minimum combustion rate (indicating sweep test mode)

From this model's manual
Verified against the Johnson Starley Warmcair Dw 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.

DIY fix possible

Wait approximately 15 to 20 minutes for the boiler to automatically exit the test modeTurn the main power switch or boiler dial to the 'Off' positionSwitch the boiler back on to 'Reset' the system to normal operation

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