Medium
19 on Sime Metropolis DGT 25 BF

Your boiler is struggling to accurately measure the flow of hot water, which may cause your taps to run cold or the water temperature to fluctuate significantly.

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

ModulationD.H.W. flowmeter

From this model's manual
Verified against the Sime Metropolis Dgt 25 Bf installation & service manual, page 19.
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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