Water Pump; Water System - Thor Motor Coach tuscany 2013 Owner's Manual

• relief valve port. In this case, it will be necessary to first remove the relief valve. You
may then insert your air pressure through the relief valve support flange. In either
case, with the drain valve open, the air pressure will force the remaining water out
of the tank. If air pressure is unavailable, you may flush your tank with fresh water.
Fresh water should be pumped into the tank with the assistance of the on board
water pump or with the assistance of external water pressure. Once again, external
pressure may be pumped into the unit either through the inlet or outlet found on the
rear of the water tank, or using the relief valve inlet located on the front of the unit.
• Continue this flushing process for approximately five (5) minutes allowing ample
time for the fresh water to agitate the stagnant water on the bottom of the tank and
force the deposits through the drain opening.
• Upon completion of the steps above, close the drain plug as well as the relief valve.
Refill with fresh water, circulate and rinse.
• If you use your vehicle frequently or for long periods of time, flushing the water
heater several times a year will prolong the life of the water heater storage tank.
Pump will not start.
• Check that house battery disconnect switch is on.
• Check pump switch at monitor panel.
• Check fuse in power center.
• Check to see if water is frozen.
Will not prime, sputters. (No discharge, but the motor runs.).
• Check to see if there is water in the tank, or if air collected in the hot water heater.
• Check for frozen water lines or water tank.
Pump will not shut off. Runs when faucet is closed.
• Turn off pump or city water supply.
• Check for damp areas around plumbing appliances.
• Check plumbing for leaks and inspect for leaky valves on toilet.
• Have the pump checked by your Thor Motor Coach dealer or a qualified RV
technician.
Wet areas near water connections, pump runs while the faucets are closed, and no
other fresh water fixtures are being used.
• There is a possible leak.
• Close all low point water drains and tank drains.
• Turn off all fixtures.
• Check all fixtures and connections for tightness. Do not over tighten fittings as this
may cause additional leakage.
Troubleshooting

WATER PUMP

WATER SYSTEM

93