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Firebird 50/90 and horstmann h37xl

Den318 · 2021-02-14 10:14:08

I have a problem with the mains on the boiler staying on even when the horstmann timer is off. Has anyone this problem before

14-02-2021 10:14am

#1

Den318

Registered Users, Registered Users 2 Posts: 1 ✭

Join Date: February 2021

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I have a problem with the mains on the boiler staying on even when the horstmann timer is off. Has anyone this problem before

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Comments

#2 14-02-2021 10:27am

Wearb

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Often caised by sticking contacts on a motorized valve. Could of course be sticking contacts in the timer also.

Please follow site and charter rules. "Resistance is futile"

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#3 14-02-2021 11:54am

jimf

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as stated above already sticking micro switch

can also be caused by frost stat if 1 fitted

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