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C

_Chris

Hello
My Myson Midas combi boiler (25 yrs + ) has developed an irritating problem. All is working normally except that it fires up when a cold tap is turned on even a little and when the toilet is flushed.

It fires up periodically to top up the water temperature in the hot water reservoir during normal operation which is a bit of a waste really so we normally leave the hot water switched off at the boiler & only switch it on when hot water is needed. Yesterday, I forgot to switch it off after use and it was then that I noticed the problem.

I'm OK working on this boiler and over the years I've replaced the fan, main circuit board and pressure relief valve.

Could this be a problem with the hot water flow sensor or is it something else?

Cheers

Chris
 
You're not "ok working on this boiler" unless you are registered and qualified to do so. Please read the forum rules.
 
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