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boiler fires up every 5mins for 10 seconds. programmer set to hot water auto ,only.?

Discuss boiler fires up every 5mins for 10 seconds. programmer set to hot water auto ,only.? in the Plumbing Jobs | The Job-board area at PlumbersForums.net

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blueryann

newish install . vaillant 415 boiler .fires up every 5 mins for 10 secs, programmer is set to heating off and water on auto....cylinder stat set to 60.. can anyone comment on the problem thanks.
 
Re: boiler fires up every 5mins for 10 seconds. programmer set to hot water auto ,on

Is there an auto bypass fitted
Has this been happening for over a year ?:D
 
Last edited:
Re: boiler fires up every 5mins for 10 seconds. programmer set to hot water auto ,on

Dodgy cylinder stat ?
 
Re: boiler fires up every 5mins for 10 seconds. programmer set to hot water auto ,on

Stat link not removed!
 
Re: boiler fires up every 5mins for 10 seconds. programmer set to hot water auto ,on

24v link not removed
 
Re: boiler fires up every 5mins for 10 seconds. programmer set to hot water auto ,on

Wait I take it back this is open forum.

No idea mate. Probably best to get your gas chap back
 
Re: boiler fires up every 5mins for 10 seconds. programmer set to hot water auto ,on

Is there a pre heat function on these boilers ??
 
Re: boiler fires up every 5mins for 10 seconds. programmer set to hot water auto ,on

Check for a pre heat function and turn it off.

Otherwise your need a gas man in.

Job 38.11
 
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