How to mend Vaillant 837

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valliant eco plus 837 boiler ?

hi i have a vaillant eco plus 837 boiler , and recently had a small pipe change for shower head to downst... [Read more]

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leaking diverter valve?

I have an vailant 837 R1 eco tec boiler, the diverter valve is leaking, is there a kit for repairing this or s... [Read more]

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vaillant 837?

hi i have a 837 vaillant with the code s7. what can it be?

how to repair valliant ecotec 837 plus?

how to replace the water pressure switch on my valliant combi boiler?

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the ?

the boiler gives me hot water for a few mins and go off it is also doing this with the heating side as well ... [Read more]

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Which boiler ?

I am going to have my old combi boiler replaced, but I can't decide which new boiler to go for. I have narr... [Read more]

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Which Boiler ?

I am going to have my old combi boiler replaced, but I can't decide which new boiler to go for. I have narr... [Read more]

Vailant Ecotec Plus 837 Radiator heating issue. fault 22?

Hi I recently replaced my old boiler with a new Vailant 837 combi and my heaters dont seem to be heating up, t... [Read more]

How can I fix my vaillant ecotec plus 837?

Getting luke warm water, and heating has stopped working. checked panel, I have a flashing radiator sign. When... [Read more]

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Vaillant ecoTEC plus 837 pressure keeps dropping?

My boiler pressure keeps dropping to 0.4bar after a couple of hours even after refilling system to 1.5bar. T... [Read more]

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How can I fix my vaillant ecoTEC PLUS 837?

Becouse of an emergency we had to turn off the house water tap. After resolving the problem I turn it on but I... [Read more]

poiler prussre is too high?

I have a Vaillant eco Plus 837 boiler, the problem I'm having is that the pressure reach 3.4 bar, I tried t... [Read more]

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vaillant turbomax plus 837?

wot does f60 mean? cheers

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vailliant boiler has no c/h but hot water?

new ecotec 837 central heating doesn't work, but hot water does. Seems to be a problem with the sensor that go... [Read more]

Wiring for vaillant combi boiler 837?

Can anyone help me with wiring diagram for combi boiler 837 I am renewing my old system. Many thanks

vaillant 837 E turbomax plus?

boiler displaying yellow light with F 5.4 in the display unit. how do I fix the problem? Thanks

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whats wrong with my boiler?

the central heating works but when we want the hot water no water come out of the hot tap. the make is an eco... [Read more]

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Vaillant Ecotech 837 plus lossing pressure over 3 weeks?

I have noticed when central heating is off boiler pressure drops from 80% to 25% in 2 days. when ch is on take... [Read more]

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Vaillan Ecotec 837 - where is the AAV! Automatic air valve?

According to the diagnostic I neeed to make sure the cap on the automatic air vent is loosened - I have the ma... [Read more]

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How can I fix Valliant TURBOmax Plus 837?

My Valliant turbomax plus 837 combination boiler recently stopped giving hot water. We had to replace the fan.... [Read more]