You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser.
-
S
I believe the builders plumber also reduced the boilers output (d0) but had no effect
-
S
Thanks John, not seeing a pressure drop (see reply above) and reluctant to suspect the pump or the new pressure switch but don’t know...
-
S
Thanks for the S7 confirmation
Not seeing an increase in pressure on the digital display when the pump starts. Pressure switch has been...
-
S
Vailant ecoTEC plus 637 System Boiler
S Plan
Unvented Cylinder
Honeywell ST6400C controller
13 Radiators
Boiler not igniting - S.97...
