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Tim JA
Tim JA, HVAC Technician
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Experience:  Owner at Self-employed
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My valliant home combi 30 has no pressure. Which are the

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My valliant home combi 30 has no pressure. Which are the correct taps on the boiler to use for re-pressuring plz?
JA: Are you getting any error codes or blinking lights on your boiler? How old is it?
Customer: No codes. Just display saying 0.0. It was 0.2 earlier.
JA: How long has this been going on with your boiler? What have you tried so far?
Customer: Only happened overnight. There has been a spanner sign saying “service heat generator” since Friday. I haven’t tried anything so far.
JA: Anything else we should know to help you best?
Customer: I don’t think so. Were in a new build (18 months old).

Good morning, welcome to the Technical section in JustAnswer; my name is ***** ***** I will help you today.

Some Vaillant installations use the integral filling loop, with a braided hose and two white taps on the underside of the boiler, and some use an external equivalent. Do you know which you have? If not, please attach a well-lit photo of the view of the underside of your boiler, and I'll tell you which you have.

If you receive a phone call offer, please ignore it - these are system generated and outside my control. My understanding is that you won't be charged if there's no phone call.

Customer: replied 1 year ago.
I have the 2 loops. I called Vaillant to who told be what to do thanks. I’ve topped up now. Thank you for getting back ��

You're welcome. I'm glad it's sorted out :-)

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