vaillant ecotec plus 837 pump radiator problem.

Ringo_uk · 1 Mar 2021

Hi all,

I've got an issue with the radiators in the below rooms from the top. Boiler is in the bedroom on top floor the radiator in that room gets hot. The bedrooms on the next floor don't come on and the downstairs are the same. I've tried bleeding them but no joy. Hot water is working fine.

I've 2 thermostats 1 running rads and other UFH

My annual service is in 3wks so I'm not sure if I wait or get somebody to give me a quote and get it fixed depending on the price or wait?

Thanks for your advice,

ianmcd · 1 Mar 2021

your problem wont be addressed by a boiler service

D_Hailsham · 1 Mar 2021

Was it working OK previously and this is a new problem?

Ringo_uk · 1 Mar 2021

Yeh it was all working fine and 1st time it's happened.

Cheers

MeldrewsMate · 1 Mar 2021

When you turn off the working radiator do any of the others start to work?
The thread title indicates that you may suspect a pumping problem. Why is that? Can you hear the pump running?
Is the EcoTec a combi boiler? If so, do you get proper hot water functions?
Can you hear the diverter valve modulating/moving...a small electric motor sound for a few seconds when mains power is cycled?

Ringo_uk · 1 Mar 2021

Yeh theres no issues with the hot water its running 100%. It's a combi boiler. Still no hot radiators when the top one is off. MY friend said it mayb the pump or diverter valve. I checked the pump its not stuck if feels hot though but I can't hear it spinning or any strange noises. I can hear the diverter kick in. At the back off the pump I can just notice a little freckle of water. Check the photo?

Thanks

ianmcd · 1 Mar 2021

Ringo_uk said:
Check the photo?

what photo ?

Ringo_uk · 1 Mar 2021

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vaillant ecotec plus 837 pump radiator problem.

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