Biasi 28s No dhw No CH

[davidmadona80]

A biasi boiler, which was working fine few daya ago. Then suddenly no ch, and giving very hot water. Temp goes upto 70c

Cleaned pump, changed diverter valve rubbers, cleaned heat exchanger.

Pump cleaned, is working but feels hot.

After cleaning secondary HE, the hot water is not working also, pressure know dont even move at all.

When manually done via pressure switch it works but pump feels hot.

Any ideas please folks.

 

[CBW]

Any ideas please folks.

Sounds like you need an engineer’s visit.

 

[davidmadona80]

I had a boiler engineer but he couldn't fix first time round. He came round again after nee symptoms, changed the pump which i suspected to be problem and its all working!!