There's more than one model called the 620E. Can you be a bit more specific? The GC Number would help.vaillant 620E
pump in boiler
There's more than one model called the 620E. Can you be a bit more specific? The GC Number would help.vaillant 620E
pump in boiler
Thanks for that information. Yours must be the thermoCOMPACT;the turboMAX is the combi version of your boiler.turboMAX plus, thermoCOMPACT
3 is only an estimate. You may have to experiment.Turns out I had managed to adjust it to 2.5 but it’s still bypassing.
Have set to 3 now.
Two possible causes: Valve faulty or something is keeping it open, e.g muck in the pipe.Anyone know this Tower APV that I have?
I've gone past 6 (max) and its into a shaded area.
When will the thing stop by passing ? and be completely blocked?
The system needs to be balanced.I have turned off the 2 rads in the front bedrooms, and now have the dining room rad working.
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