HELP! Viessmann Vitodens 200 overheating and cutting out

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Good, but its a pity you didn't have weather compensation! Don't you want 15% smaller gas bills?

From what I gather, weather compensation keeps the house ambient all the time, which is great if you're a normal household but not if you're us. We go to work at 7am, come home at 7pm, sit in one room (12' x 10') for about 3 hours and that's about it. we may warm the bedroom or the bathroom but nothing else.

Of course, it may come in useful later but I don't think it matters for now?
 
There is no point having a 200 instead of a 100 if you are not having the weather comp!

If the pump is seized then this is almost ALWAYS as a result of dirt in the system. In that case it should be a chargeable call and a new pump will be about £130 in addition.

I chemically clean the pumps and get them as good as new.

Tony
 

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