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We have 16 questions about mending 'vaillant thermocompact boiler'

How to mend ... Vaillant Thermocompact Boiler

Mend Heating, Home Heating Systems

How difficult or easy to replace pump on boiler?

We have a Vaillant Thermocompact 615EH boiler which has started to get noisy and needs replacing. It looks rel... [Read more]
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Vaillant fan operation indicator light is flashing?

I have a vaillant thermocompact boiler ((VU 142) and the fan operation indicator light is flashing - the heati... [Read more]
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F.28 Vaillant thermocompact boiler will not reset?

Re Vaillant thermocompact bolier F.28 display - my stepfather bled my radiators around 6.30pm and by 10.30 the... [Read more]
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How to give a maintainance clean to Vaillant Thermocompact 2000 VC NL254/2X?

I live in The Netherlands and I have the above kettle or boiler. I am very hady and have got experience with o... [Read more]
Mend Heating, Home Heating Systems

Why is my heating not working ?

Vaillant 628 thermocompact boiler ( sealed pressurised system) Drayton 5/2 timer for heating and water + Pott... [Read more]
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Vaillant Thermocompact 628e Delay Mode Fault 5.53?

HELP!! My family and I have had 3 nights of freezing cold as our Vaillant keeps igniting then switching off... [Read more]
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Can anybody help with a Vaillant boiler with a fault code f33 ?

My Vaillant boiler (ThermoCompact) has a fault (again) of f 33. I am painfully aware of what it is (the last ... [Read more]
Mend Heating, Home Heating Systems

VAILLANT THERMOCOMPACT VU GB 182/1E BOILER?

NO FLAME, FLAME CUT OFF INDICATOR OPERATES STRAIGHT AWAY..HAVE CHANGED THE PCB'S ..BUT STILL SAME PROBLEM..PLS... [Read more]
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FAULT F28 VAILLANT THERMOCOMPACT BOILER?

Hi i have a fault F28 on the above boiler and have discovered that the water level is bellow what it should be... [Read more]
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how can i wire a vaillant open flue system boiler vcg 242?

I have a vaillant thermocompact boiler that will not ignite, the ignition wires blue and brown soon as you plu... [Read more]
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My Vaillant Thermocompact boiler wont ignite?

My Vaillant Thermocompact boiler wont ignite and I keep getting the error message 5.33. The temp is stuck on 1... [Read more]
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Vaillant ThermoCompact System Boiler VC 142E?

The boiler has power in, but nothing out to the Programmer therefore won't light up, any ideas please
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how do I get the pressure back?

I HAVE A VAILLANT THERMOCOMPACT BOILER AND THE PRESSURE GAUGE IS ZERO. CAN YOU TELL ME WHAT VALVE I HAVE TO TU... [Read more]
Mend Heating, Home Heating Systems

Pressure drop problems with Vaillant thermocompact VC GB 282E?

Dramatic pressure drop began with last cold snap about two weeks ago - water churning noise overhead (boiler i... [Read more]
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my Vaillant thermocompact combi will not light. fault no f.28?

I switched off boiler to flush out a cold radiator. Refilled system till pressure was ok,bled the system ok,sw... [Read more]
Mend Heating, Home Heating Systems

My Vaillant Boiler is sounding a quiet singing note every 15 mins or so!?

My Vaillant Boiler is sounding a quiet singing note every 15 mins or so! We have just moved in with little mon... [Read more]

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