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5 Common Shower Pump Problems Explained

Shower pumps are designed to last for many years without requiring a large amount of maintenance. However, there are areas that may need looking at to ensure that your pump continues to operate smoothly.


At Pump Sales Direct we have an extensive knowledge of the plumbing sector, especially around the operation of shower pumps. We want to ensure that you get the best from your pump, so here we look at five common problems with shower pumps and how they can be resolved.

1. Blocked Pump Filters

When there is poor water flow from your shower head, you should ensure that it has been cleaned and descaled properly. However, if this hasn’t helped, it could be that the filter within the pump has become blocked. This is often the case in areas that have hard water, or it could be due to debris getting into the filter during installation.

Before you start, you need to switch off the service valves and ensure the electrical supply to the pump is disconnected. The filters need to be removed and then gently cleaned. They are usually positioned behind the pipes connected to the impellers. Once they’ve been replaced, you can reconnect the pump and refill it.

2. Airlocks

Another common problem with shower pumps is airlocks, which can restrict the flow. To remove the air, the pump will need bleeding. Switch off the pump’s electrical supply, and turn on the shower mixer and other taps that the pump feeds to empty the water and then switch them off again. The pump can be vented directly by taking the connection pipes out once the valves have been turned off.

3. A Noisy Shower Pump

Noisy pumps are not just inconvenient; they can also be a sign of a more worrying problem. The noise could indicate that the pump is jammed and not allowing the impellers to rotate. This could be a result of limescale building up in hard-water areas, the seals could be stuck or there could be an electrical issue.

Older pumps can also become noisy due to where they are positioned or a problem with the pipes. The pump should have anti-vibration feet fitted, and the pipework needs to be properly supported.

4. A Cold Pump

Shower pumps will not perform efficiently if they get too cold, so it’s important to protect it with insulation. This will stop it bursting or becoming damaged in freezing weather.

5. A Leaking Pump

The seals on pumps can deteriorate after a period of time. If your pump begins to leak, it could be that they need replacing.

Shop our full range of shower pumps online at Pump Sales Direct.

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