{"id":462,"date":"2016-10-17T10:09:05","date_gmt":"2016-10-17T10:09:05","guid":{"rendered":"http:\/\/www.pumpsalesdirect.co.uk\/blog\/?p=462"},"modified":"2024-03-26T08:51:27","modified_gmt":"2024-03-26T08:51:27","slug":"how-to-replace-central-heating-pump","status":"publish","type":"post","link":"https:\/\/www.pumpsalesdirect.co.uk\/blog\/how-to-replace-central-heating-pump\/","title":{"rendered":"How to Replace a Central Heating Pump"},"content":{"rendered":"\n

In any \u2018wet\u2019 central heating system, it\u2019s the circulation pump that is one of the most likely components to fail. This is hardly surprising, as a <\/span>central heating pump works pretty hard<\/span><\/a><\/span>. When your pump needs replacing, you may be tempted to call a plumber, but in fact it\u2019s a fairly easy job to do yourself. Here\u2019s how to know <\/span>if your pump needs changing<\/span><\/a><\/span>.<\/span><\/p>\n\n\n\n

First of all, you need the right tools for the job. You\u2019ll need a couple of adjustable spanners, an electrical screwdriver and a paint-roller tray and some cloths to catch any spillages and drips. Next, make sure you get the right type of replacement pump. You\u2019ll find a wide range on <\/span>Pump Sales Direct<\/span><\/a><\/span>, and there will be a label on your old pump that will help you determine the type you need.<\/span><\/p>\n\n\n\n

Changing the central heating pump<\/b><\/h2>\n\n\n\n

1. When you\u2019ve got together all that you need, you\u2019re ready to start changing the pump. Begin by disconnecting the pump\u2019s electricity supply. There\u2019ll usually be an isolator switch allowing you to turn off the supply to the system. With this safely off, you can remove the cover to the pump\u2019s electrical connections; make a note – or take a photo – of where the wires go before you disconnect them.<\/span><\/p>\n\n\n\n

2. In most modern heating systems there will be isolator valves above and below the pump, allowing you to turn off the water supply. Close both of these by turning them clockwise; you can then unscrew the connections holding the pump in place – make sure you don\u2019t disturb the connections that attach the isolator valves to the rest of the pipework. Use your paint tray to catch any water that\u2019s released.<\/p>\n\n\n\n

3. With both connections undone, you can remove the old pump and any washers. The washers can be reused if you must, but it\u2019s best to replace them with new ones to prevent future problems. Put the new pump and washers in position and do up the connections. Make them finger-tight to start with to ensure you haven\u2019t damaged the threads, and then tighten them up with your adjustable spanners. Make sure not to over-tighten.<\/p>\n\n\n\n

4. You can now reopen the isolator valves, checking for any leaks as you do so. Check that the electrical connection box is completely dry and re-attach the connections – refer to the sketch or photo you made at the start.<\/p>\n\n\n\n

Restarting the system<\/b><\/h2>\n\n\n\n

Now you can test the system. Switch the power back on and turn up the room thermostat to kick the heating into life. You should be able to hear the new pump turning when the system is on. Changing the pump is likely to have introduced some air into the system, and there will be a bleed screw on the pump itself to allow you to get rid of this.<\/span><\/p>\n\n\n\n

Open the bleed screw gently and you should hear hissing as the air escapes. Keep a tray or cloth handy to catch any dribbles. When the hissing sound stops and you see some water, you can close the valve. It\u2019s also a good idea to bleed the radiators at this point to ensure no air has been introduced into the system.<\/span>
That\u2019s all there is too it – your new pump should now be running and your heating operating properly again. Shop your <\/span>replacement central heating pump<\/span><\/a><\/span><\/p>\n\n\n\n \n <\/div>\n\n ","protected":false},"excerpt":{"rendered":"In any \u2018wet\u2019 central heating system, it\u2019s the circulation pump that is one of the most likely components…","protected":false},"author":9,"featured_media":2133,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"csco_display_header_overlay":false,"csco_singular_sidebar":"","csco_page_header_type":"","footnotes":""},"categories":[58,135,57],"tags":[62,168,14,18,6],"class_list":{"0":"post-462","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-heating-solutions","8":"category-homeowners","9":"category-how-to-guides","10":"tag-central-heating-pump","11":"tag-grundos","12":"tag-heating-pumps","13":"tag-pump-sales-direct","14":"tag-salamander","15":"cs-entry"},"yoast_head":"\nHow to replace a central heating pump<\/title>\n<meta name=\"description\" content=\"When your central heating pump needs replacing, it\u2019s a fairly easy job to do yourself. 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