boiler fault, any ideas?

Simonsigns     November 4, 2020 in ASL 0 Subscribers Subscribe


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biasi m90.

heating works fine.

Hot water pressure goes crazy inside boiler.

temperature goes to 120'c

heat exchanger been acid cleaned out, is very clean system with magnaclean.

bangs and farts

any ideas please??

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    Yasharun
    5 years ago
    ReplyTo:   Simonsigns
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