May be you could give us some pointers first, such as make & model of boiler, what controls you have etc etc?Any pointers welcome...
The valve is as described previously.
I replaced the controller with the exact same model
Rather unlikelyJust thought I'd mention that my Daughter had that problem briefly, it was a faulty bypass valve as I recall
Try posting info on present thread unless you think we like trawling through your previous problems just to help solve your current ones.The valve is a tri port as previously described and the boiler is also noted in the previous post.
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