You should always check the Roof of your RV at least once a year for gaps in the sealant and or tears in the roof membrane and any other potential leaks. If you're not comfortable doing this pay to have it done because the insurance companies are denying claims of leakage and water damage because owners cannot prove they have had the roof inspected according to the owner's manual.
While checking out the roof go ahead and check the sealant at the o top of the awning rails, around windows and anything attached to the side of the RV
Drain and flush the water heater once a year but make sure you turn off the 120 VAC breaker inside the RV that powers the water heater before doing this! The drain plug is at the bottom of the W/H, outside and a "dousing rod " can be purchased at any RV supply store. This 'dousing rod' can be attached to the end of a water hose and inserts into the W/H to flush it with fresh water and carry out all the sediment.
Nick Brown sez," before a trip firefly operate anything that has a switch or handle on it or to it to minimalize an suprises on the road"
Rodney sez, "when winterizing your RV always pump 'freeze ban' through the system to every faucet and toilet". This will ensure when the spring thaw comes you will not have any broken plumbing. Ps: don't forget those filters and ice makers as well!
Lube or repack the wheel bearings on your 5th wheel or travel trailer once a year, read the owners manual for your axles for exact information.
Never use liquid fabric softener in combo washer/dryer machines with outside dryer vents as it will gum up the vent and heating element. NOW on the 'condensate' washer/dryer combo's you must use liquid fabric softener. This tip was sent to us by "Connie Edders"
Check the electrolyte level in your batteries once a month if you leave your RV plugged in all the time.
ALWAYS leave the battery disconnect 'ON' when the RV is left plugged in to 120vac all the time.
ANYTIME your house batteries are replaced they should all be done at the same time and the charging system checked for output after the new batteries have been installed.