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Discuss Oil boiler flow switch tripping high limit stat in the Plumbing Jobs | The Job-board area at PlumbersForums.net

SJB060685

Plumbers Arms member
Plumber
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2,558
Can someone explain to me exactly how a faulty flow switch can cause an oil combi to trip a high limit stat?
 
If flow switch sticks on then burner will continue to heat boiler but tap will not be taking away heat. Thermostats may not cut in quick enough.
Warmflow combi?


Thanks for the reply. No it’s a Mistral. What you said was my understanding but just wanted a second opinion.
 

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