Common Whale water pump problems and how to solve them

Whale water pumps are popular with caravan owners due to their reliability and trusted brand name. However, as with all working parts, there are some common water pump issues you may need to deal with.

In this guide, we share what a Whale water pump is, common issues, and how to fix them. We’ll also look at tips for maintaining your Whale water pump and what can happen if you fail to look after yours properly.

What is a Whale water pump?

A Whale water pump is a water pump system typically found in campervans, motorhomes, caravans, and boats. The pump supplies fresh water from an onboard tank to taps, showers, and other water outlets, providing water for washing, drinking, and cleaning.

Whale is a popular, respected brand known for manufacturing durable, compact, efficient water systems. The Whale range includes manual, electric, and pressure-controlled pumps, which are reliable, available in 12V or 24V options, compatible with most standard water systems, and made from durable materials.

People often choose Whale water pumps for their caravan as there are a range of options available for different caravan sizes and layouts. Plus, they are easy to install and service, and spare parts and accessories are readily available.

Common issues with Whale water pumps

While Whale water pumps are a respected, trustworthy product, there are some common issues that can occur, which you may need to fix from time to time. Here are some of the most common.

Unusual noises and vibrations

If your Whale water pump is clicking or vibrating intermittently once the tap has been switched off, there could be an issue with the calibration or sensitivity of the pressure switch. This could also be caused by a minor leak that is causing the system to repressurise.

You could try carefully adjusting the pressure switch calibration (use Whale’s guidelines to do this), check your system for leaks, and ensure no other parts of the pump are showing obvious signs of wear.

Keeps running when taps are off

If water keeps running even when the taps are off, this could be a sign that your pressure switch needs recalibrating. Once again, you should follow Whale’s guidance if you’d like to try recalibrating this yourself. There could also be an issue with microswitches in your taps, which aren’t signalling to the pump that they’ve been turned off. Should you believe this is the case, you can test the micro switches and replace them if necessary.

No water flow

If your Whale water pump is coming on as expected but doesn’t reach the taps, there could be airlocks in the plumbing or a blocked filter. This particular issue is also sometimes accompanied by a gurgling noise. Priming the pump to remove air from the system is the best way to fix this problem.

Low water pressure

Low water pressure is most commonly caused by a leak or blockage. Carefully examine your water pump system to make sure everything is properly secured and there’s no sign of leaks. You should also ensure your water container is sufficiently filled.

Overheating

If your pump suddenly stops mid-flow and feels hot, it means it’s overheating. This could happen for a variety of reasons, such as: 

• the pump isn't big enough for what you need it to do
• there's a blocked fitting that's causing it to overwork
• the power supply is poor
• thermal protection is shutting the pump off

Check the power supply is adequate and ensure there are no blockages in the system. You may also need to consider upgrading to a more powerful pump. Always wait for it to cool down before trying to use it again.

Leaks and drips

You should check your Whale water pump for leaks and drips frequently, as leaving these unresolved can lead to water wastage and possibly damage your caravan too. Tighten connections where necessary and replace any parts that appear to be damaged.

How to maintain a Whale water pump

Maintaining your Whale water pump will help to keep your system free from issues and ensure reliability and consistent water flow while reducing the risk of potentially costly problems. Here’s what you should do: 

• clean the pump filter or strainer regularly
• check hoses, seals, and connections to ensure nothing's damaged or showing concerning signs of wear
• keep all electrical connections safe and dry
• winterise your water pump if you're storing your caravan for the colder months to reduce the risk of frozen pipes
• clean the system with a mild sanitiser every few months
• monitor for leaks, strange noises, or reduced pressure

Why is it important to fix issues quickly?

Leaving your Whale water pump issues for too long without fixing them can lead to bigger problems, including:

• water damage - leaks and drips that aren't resolved quickly can lead to damaged insulation, cabinetry, and flooring. They can also make your caravan more susceptible to damp, mould, and mildew
• pump burnout - if your Whale water pump is left running continuously due to an unresolved issue, it could overheat, wear out, or fail completely. This would mean you’d need to replace the system, which isn’t a cheap option
• no access to clean water - a faulty pump can mean water isn’t being filtered properly, there’s an inconsistent flow, or there’s no flow at all. This negatively impacts drinking water, cooking, washing, hygiene, and bathroom use
• electrical problems - if your Whale water pump draws too much current, it can drain your leisure battery, overheat wiring, blow fuses, or cause a short circuit. This is not only inconvenient but can also be dangerous
• delayed travel plans - when your water pump isn’t working and you have no fresh water supply, it can delay your travel plans if you're off-grid or in a remote area. It’s important to keep in mind that replacements and spare parts may be difficult to get hold of while on the road
• odours and contamination - blockages or failing pump seals can trap stagnant water or allow dirt into your freshwater system. This can lead to unpleasant odours, bacterial growth, and even water that’s not safe to drink or wash with

Specialist caravan insurance through Ripe

Now you’re clued up on Whale water pumps and how best to fix them should something happen, you may want to give yourself extra reassurance through specialist caravan insurance.

Caravan insurance through Ripe can protect both static and touring caravans against theft, loss, damage, and more. Get a quote online today.