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Can't switch water off when Central Heating is on. Need help please!
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<blockquote data-quote="Creakyride" data-source="post: 532844" data-attributes="member: 35395"><p>The pair of heating engineers that came to check it, both said they believe that the valves are working ok. One of them was listening to the valves, the other was switching the CH and HW on and off from the controller and also setting the thermostat to maximum to test the CH valve too.</p><p></p><p>They did not open the HW valve casing to check inside. </p><p></p><p>Because of that lime scale showing in the photo, they were reluctant to touch anything and basically said to leave everything as is because it could be a costly affairs and that the money could be better spent on a new system.</p><p></p><p>Until now, I have to only changed 1 pump since the boiler installation about 37years ago, it's been an extremely reliable boiler! </p><p>I hear from friends about</p><p> their new more efficient boilers that they had to repair them often, this has been the reason why I have not considered replacing it in the past.</p><p></p><p>I will have a look if I can open the valve cover an do a test to see if it shows signs of movement.</p><p>I will also try to open the controller and take a photo of the wiring and upload it here for opinions.</p></blockquote><p></p>
[QUOTE="Creakyride, post: 532844, member: 35395"] The pair of heating engineers that came to check it, both said they believe that the valves are working ok. One of them was listening to the valves, the other was switching the CH and HW on and off from the controller and also setting the thermostat to maximum to test the CH valve too. They did not open the HW valve casing to check inside. Because of that lime scale showing in the photo, they were reluctant to touch anything and basically said to leave everything as is because it could be a costly affairs and that the money could be better spent on a new system. Until now, I have to only changed 1 pump since the boiler installation about 37years ago, it's been an extremely reliable boiler! I hear from friends about their new more efficient boilers that they had to repair them often, this has been the reason why I have not considered replacing it in the past. I will have a look if I can open the valve cover an do a test to see if it shows signs of movement. I will also try to open the controller and take a photo of the wiring and upload it here for opinions. [/QUOTE]
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Can't switch water off when Central Heating is on. Need help please!
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