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Also, would the diverter valve override the cm67 programmer??

Hi The shower is not an electric one, the water is heated from the boiler. I will check the bathroom one, as I have turned down all the TRV valves, first thing in the morning, before and after the first shower. (Our washing machine is connected to a hot and cold water tap, so isn't...

Sorry just re read your message, that it could be the diverter valve, if it is connected with the showers being used. Is that the case with just showers or any big water usage, ie dishwasher and washing machine? Thanks A

Hello My husband has just had a shower...and the only radiator that I haven't been able to turn right down today....because of the weather, is the one in the bathroom (towel radiator) and that one is hot. The programmer is still switched completely "off". Sorry for being unsure.....it just...

Evening! Checked the boiler again, and also checked the manual for the codes, "0" means that the external controls aren't calling for heat, and the 53 is the boiler flow temperature. The radiators don't seemed to be coming on when the hot water is being used.....thought first thing this...

Hi Al Thanks for your reply...really appreciate your help. For the devices to lose pairing....does that mean connecting each other....ie boiler and thermostat programmer? Sorry for the daft question! If that is the case.....how would I check this please? The boiler is a valiant, Ecomax...

Hello Hope someone will be able to help please.... About a month ago, we had a problem suddenly where the CH programmer was working normally, but only the radiators upstairs were heating, no heat at all coming from the downstairs radiators. Called a vaillant engineer out (we have a vaillant...