Water Heater Bypass; Winterization Checklist - Thor Motor Coach Class B+ Owner's Manual

Draining the tanks and water lines in your motorhome is half the battle of winterization.
Complete the Storage and Winterization Checklist to ensure protection of your
motorhome. An authorized Thor Motor Coach service dealer can help you in the
winterization process for your convenience.
A water heater bypass valve system is located inside your motorhome usually behind
the water heater. When the system is closed, water is shut off to the water heater. This
will eliminate circulating an additional six to ten gallons of antifreeze through the water
heater system when winterizing the system. Be sure to remove the drain plug from the
outside of the water heater to drain the water heater tank.
When storing your motorhome for the winter (or other extreme conditions), certain
precautions need to be made to protect it until you open it up again for use. Make sure
to talk with your local dealer concerning any special requirements for storage in your
particular geographic area. The following steps are general and your dealer can help
you choose those that are most appropriate to your needs.
Chassis
Run engine for 30 minutes once a month if possible. Prepare as
outlined in the Chassis Owner's Manual.
Generator
Prepare as outlined in the Generator Owner's Manual.
Plumbing Lines Drain and protect by filling with approved RV antifreeze.
Water Heater Drain.
Drain. Hold pedal down and pour RV antifreeze into bowl.
Toilet
Fresh Drain, pour RV antifreeze solution and run through the fresh
water system, or use the dry method.
Water Tank
Remove and discard the filter. Install diverter tube in place of
filter assembly.
Body
Clean and wax. Oil locks and hinges. Seal roof trim as needed.
Tires
Block up motorhome with wooden blocks or manufactured jack-
stands on a hard level surface to relieve the constant pressure on
one area of the tires. Partially deflate the tires. Cover to protect
against sunlight with burlap, plywood or specially designed tire
covers which are available at RV dealerships.
Countertops
Wash with mild soap and water.
& Cabinets
Winter Use and Storage
WATER HEATER
BYPASS
WINTERIZATION
CHECKLIST
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