Caravan Water Pump Pressure Switch Problems
Water pumps in caravans ensure an uninterrupted water supply, making it essential for them to function seamlessly. However, some caravan owners, particularly those with the Elddis Crusader Tornado 2010, have reported issues with their water pumps running continuously, regardless of water usage. Here’s an exploration of the potential causes and solutions to this vexing problem.
Problem:
The water pump runs continuously whether the water is in use or not. It only stops when the ‘taps’ switch is turned off.
Potential Causes and Solutions:
- Power Source Variability:
- Cause: The voltage supply to the water pump can fluctuate depending on whether the caravan is on electric hook-up or battery power. This variation can affect the operation of the pump and the pressure switch.
- Solution: Adjusting the pressure switch can often help resolve this issue. Owners can look for instructional videos to guide them through the adjustment process.
- Pressure Switch Location:
- Cause: Difficulty in locating the pressure switch under the seating area or elsewhere in the caravan.
- Solution: While many caravans may have a pressure switch similar to popular models featured in instructional videos, it’s important to note that setups can vary. Some taps might operate via a micro-switch under each tap. However, a 2010 van is more likely to use a pressure-switched water system, meaning owners can bypass checking for micro-switches. The pressure switch could be in-line or built into the back of the water inlet socket.
- Battery Power:
- Cause: A low voltage battery can cause the water pump to run continuously.
- Solution: Check the battery voltage using a voltmeter. If the reading is 12.5 volts or below, the battery may be contributing to the pump’s behavior. Ensure the battery is fully charged before usage, and it’s worth noting that a leisure battery, which is a deep cycle battery, is preferable over a car battery for caravan usage.
- Presence of Air:
- Cause: Air in the pump system might lead to the continuous operation of the pump.
- Solution: Before connecting the pump to the caravan, submerge the pump into the water container and dunk it up and down a few times to dispel any air in the system. Ensure that all taps run smoothly without any air spitting out before finalizing the connection.
- Voltage Impact:
- Cause: The water pump system can be affected by changes in voltage.
- Solution: The switch may need adjustment whenever there is a change in voltage. A technique involves turning the wheel on the pressure switch right down and then opening it back up until the pump stops, followed by a half-turn. This ensures an optimal setting for the pump.
- Miscellaneous Issues:
- Cause: Other potential causes for continuous pump operation can range from dripping taps, slight leaks in the system, or a malfunctioning pressure switch.
- Solution: Regularly inspect the caravan for any leaks or drips and address them promptly. If all else fails, consider replacing the pressure switch or seeking professional assistance.
In conclusion, while continuous water pump operation can be a frustrating issue for caravan owners, identifying the root cause and employing the right solution can ensure a seamless and comfortable caravan experience. Whether it’s adjusting the pressure switch, charging the battery, or expelling air from the pump, the key is to diagnose and rectify promptly.
