Baxi combo boiler leak from DHW when not used for 5-6 hours

[Nathan DL]

Hi

I have a BAXI NETA-TEC COMBI 33 GA boiler and every morning I come down to a small puddle of water underneath the boiler. The gas engineer has replaced two washers in the DHW and a new baxi brass adapter and tightens all connections, still the leak remains.

It does not leak when the hot water is being run it’s only leaks when the boiler is left for a long periods of time without use? any help would be greatly appreciated

Many thanks

 

[Deleted member 120897]

Unfortunately the Neta-tec is a dog boiler, and may well leak from the hydraulic block. Baxi do a fixed price repair option, which would cover this.

 

[ShaunCorbs]

Plastic hydro block best replace as it’s probably got a hair line crack