How to Repair Your RV's Water Pump

By eHow Cars Editor

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The repair and overhaul of your RV's water pump has to be done on a regular basis.

Instructions

Difficulty: Moderately challenging

Things You’ll Need:

  • Water Pump Supply Service Kits
  • Insulation
  • Screwdriver Sets

Step1
Purchase a supply service kit from your pump manufacturer or RV dealer.
Step2
Set up a clean work area away from the vehicle.
Step3
Turn off the vehicle - no electricity should be going through the system. Turn off the water supply as well - no water should be going through the system.
Step4
Mark the wires plugged in to the water pump so that you know where they go after the repairs are finished.
Step5
Disconnect the wires.
Step6
Remove the water pump after taking off the mounting bolts and vibration pads.
Step7
Take the pump to the clean work area for the overhaul.
Step8
Remove the diaphragm-retaining screws and then the diaphragm, checking for cracks and defects.
Step9
Check all surrounding valves to make sure they are unobstructed, and then check and clean or replace the filter screen.
Step10
Replace the diaphragm.
Step11
Reassemble the water pump, and remount it in your RV. Reconnect the in and out water tubes.
Step12
Refill the water tank, and turn on the pump. Check for leaks.
Step13
Run the water pump until no air is left in the water system.

Tips & Warnings

  • The supply service kit should contain a new diaphragm, a pump-check valve, a drive belt and gaskets.
  • Reduce pump noise by securing the pump to something that is sturdy, such as the floor of the RV, using the rubber mounts provided with the unit and insulating the compartment where the water pump is mounted.
  • If your pump is overly noisy even after it has been overhauled or repaired, it may need to be replaced entirely.
  • Never use sealer or Teflon tape on your water pump. It will damage the pump.

Comments

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LaDean said

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on 9/29/2007 Hi, all I need to know is how to take off the filter and clean the debris off. Also where the fuse for the water pump is if it needs to be changed..

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eHow Article:  How to Repair Your RV's Water Pump

eHow Cars Editor

eHow Cars Editor

Category: Cars

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