How to Replace a Central Heating Pump

There are times when your central heating pump suddenly fails to generate heat inside your home. You try to investigate the problem and then you are left with the verdict that your pump has reached the end of its functioning years. There are a number of ways for you to notice that your pump is not working properly. You may notice that the radiators have different temperatures. It can be that your upstairs radiator is rather cold while the downstairs one is rather warm. Replacing the heat pump may not be that difficult but the awkward locations of pumps can make a person uncomfortable throughout the entire procedure.

Tools and Materials Needed
  • Wrench
  • Spanner
  • Stilsons
  • Rags
  • New central heating pump
Step 1 – Do the Preparation

Before you start on anything, make sure that you switch off the electric supply of the device. To do so, locate the fuse that is next to the time of your heating pump. Turn off and remove the fuse. With the use of a voltage tester, test the wires that lead to the pump.

Step 2 - Locate the Central Heating Pump

This may prove as a problem because most pumps are located under the floor or in walls or cupboards. If you are having problems finding your heating pump, ask your contractor.

Step 3 - Close the Valves

You will notice that there is a pump valve on each side of your central heating pump. You must close both valves with the use of a spanner. Doing so will isolate the water flowing in the entire system to your pump. Make sure that you close the valves when there is no water passing through them. The main idea is to keep the water in the heat pump system inside the pumps so that you don’t have to worry about water when you are removing parts. To close, turn the valves clockwise.

Step 4 - Remove the Pump

Because there will still be water in the system, place rags under the pump. Remove the first valve by unscrewing the nut. You will have to twist in a counterclockwise position. Expect that a little amount of water should leak out. When you have gotten the first valve out, proceed to the second valve. You may have a harder time doing so. You may make use of stilsons if the need arises.

Step 5 - Place the New Pump

In your old pump, you will notice arrows that will indicate the flow of water. When you position the new pump, make sure that it still follows the same flow of water as the previous one. There are three electrical wires that you must connect to the new pump: the live wire, neutral wire and earth wire. Attach the wires to their appropriate terminals. Once you are done with the wiring, connect the pump to the valves by placing the nuts back and tightening them. When you are done doing so, open the valves and turn the system on.