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Hi, Thanks for the responses. Today the cavalry arrived. The plumber said that the valve (the T-Junction) had been put on the way round (A - to the cylinder, B - to the heating), and it needs to be changed. This explains why I was getting heating only from the rest position. The first...

This is a repeat question of another I have placed, but I have tried to simplify it. Hope this does not break any forums rules? If the rest position of a 3port valve is B and not A, how do I rewire the valve to correspond to the new layout? ________________________________________ Lynda...

Hi Thanks for the response. Previous to the system going pear-shaped I had two options (excluding off): - Hot water only - Hot water and Heating then the system broke, and I could only get hot water regardless what switch I put the programmer on. Then the plumber came and said...

UPDATE.... The wire were not connected, however I checked the junction box, where the central heating electrics are, and the motorized connections were labeled, so I connected them and the system works, sort of! The only problem now is that the programmer and system are backwards. When I...

Hi, Recently why Heating stopped to work, but I had hot water. After getting a plumber out, he said he replaced the motorized 3-port valve, but said he could not rewire the electrics for the valve, but he would could back the next day with an electrician to finish the job, and he has never...