Hello again.
OK. Got a CM907 (physical fittings identical spacing wise, by the way), connected it up same way as the CM67 and it now seems to be fine.
Thanks again.
Hi Tony
Good call. Looks like it's the CM67 (not CM61) that's the culprit. They're discontinued I believe so I'm now on the hunt for a direct replacement or somebody with old stock as I also have the auto time setting module and it would be good to reuse it.
Thanks for your help.
Problem: Circulating pump failed - new pump fitted - now the boiler seems to randomly fire up regardless of requests for heat. i.e. can turn controls to "Off" but boiler keeps firing.
I have an elderly but usually reliable heating system. It has evolved over the years and now consists of: Ideal...
Thanks Ian & denso13.
There is water in the F&E tank and at the correct level. The other day I manually held the ball valve and drained a few pints from the system. The level dropped as expected and then refilled once the ball valve was released.
Does that prove/disprove the same thing as...
Hello
I have a rather old, traditional but thus far reliable heating / hot water system. It has evolved over the years and now consists of an Ideal Mexico Super 2 (awaiting its annual service), 11 radiators (2 storey house), a copper hot water cylinder in the airing cupboard upstairs, cold water...