Auto User Guide

Jayco Alante 2023 High altitude deration User Manual

Jayco Latest Logo - Auto User Guide

Jayco Alante 2023 High altitude deration User Manual

High altitude deration

Operation of the water heater at high altitudes may require derating. If the water heater is not properly dated, lack of sufficient oxygen for combustion may produce improper burner operation. Pilot outage caused by burner lift-off or scooting from a yellow burner may occur, indicating the possibility of carbon monoxide. You may also notice a lack of efficiency in heating the water because of incomplete combustion of the burner at these higher altitudes. Consult with the local propane company, your dealer or the water heater manufacturer for proper derating of the water heater. Change out of the orifice (derating) should be done by the dealer or a qualified service agency.

It is important that once the RV has returned to lower elevation (be-low 4500 feet) any high altitude deration or other adjustments be reversed for proper operation of the water heater.

Jayco 2023 Top Accessories

[amalinkspro_table id=”32452″ new-window=”on” nofollow=”on” addtocart=”off” /]

Pressure and Temperature Relief Valve

Do not place a valve between the pressure and temperature (P&T) valve and the tank. Do not remove or plug the relief valve under any circumstances.

The temperature and pressure relief valve is designed to open if the temperature of the water within the heater reaches 120° F, or if the water pressure in the heater reaches 150 pounds. When this pressure is reached, the pressure relief valve will open and water will drip from the valve.
This “weeping” or dripping will continue until the pressure is reduced to below 150 pounds, and the valve closes. This condition is normal and does not indicate a defective relief valve. One way to reduce the frequency of this occurrence is to maintain an air pocket at the top of the water heater tank. This air pocket will form in the tank by design; however, it will be reduced over time by the everyday use of your water heater.

To replenish this air pocket:

  1. Turn off the water heater.
  2. Turn off the cold water supply line.
  3. Open a faucet in the RV.
  4. Pull out the handle of the pressure relief (P&T) valve and allow water to flow from the valve until it stops.
  5. Release the handle on the P&T valve – it should snap closed.

Close the faucet and turn on the cold water supply. As the tank fills, the air pocket will develop. Repeat this procedure as often as needed to reduce the frequency of the weeping P&T valve.


Do not allow the burner to burn with a yellow flame, or continue to operate the water heater with an improper burner flame. Periodically, inspect the water heater vent for soot. Soot is a sign of incomplete combustion and must be corrected before operating the water heater. This is your visual warning that the water heater is operating in an unsafe manner. If soot is present, immediately shut the unit down and contact your dealer or a qualified service agency. Periodically inspect the vent for obstructions. Do not terminate the vent on your water heater inside of add-on rooms, screen porches, or patios. Doing so will result in products of combustion being vented into the rooms or occupied areas.

Draining and Winterization

If the recreation vehicle is to be stored over the winter months, the water heater must be drained to prevent damage from freezing. Damage to the water heater caused by freezing is not warrantable. It is recommended the water heater be drained and bypassed during the winterization process, particularly if introducing RV antifreeze into the plumbing system. Never drain the water heater when it is HOT or UNDER PRESSURE.

To drain the water heater:

  1. Turn off the electrical power to the water heater either at the switch from the electrical element of at the breaker.
  2. Shut off the propane supply to the water heater.
  3. Turn off the water pump.
  4. Open both hot and cold water faucets.
  5. Remove the anode rod from the tank.

For detailed information see the Winterizing the Plumbing System.

Outside Shower

A handheld shower assembly with both hot and cold water is included for use outside of your recreational vehicle. It may be located in a separate outside shower compartment or at the utility center (if so equipped).

  1. Be sure the water heater is ON and had sufficient time to heat the water.
  2. If dry camping, be sure the 12-volt water pump is ON.
  3. Remove the handheld shower from its holder.
  4. Turn ON the hot and cold faucet knobs, and adjust the water temperature as desired.
  5. To activate the handheld shower turn ON the sprayer head attachment (some models). To turn off the water, always close the hot/cold control (faucet) knobs. The lever on the shower head will not completely stop the flow of water; this is intentional to allow for draining. After the water has been allowed to drain from the shower head, return it to the outside shower storage. Any remaining water in the shower hose will drip or run out; this is not a leak but performs as intended. If you are dry camping, turn the water pump OFF.

Turning off the water with the shower head lever can also create a condition where the hot and cold water will mix through the outside shower faucet, thereby reducing the temperature of the hot water. It can appear as though the hot water heater is not working properly.

The shower head may be removed from the hose so that it will drain faster. If you remove the shower head, be sure to reassemble it prior to storage.

When putting the shower assembly back into the storage compartment, make sure the hose is not pinched or the shower head is positioned in a way it can be damaged.

[amalinkspro_table id=”32446″ new-window=”on” nofollow=”on” addtocart=”off” /]

Reference Links

View Full User Guide: Jayco Alante 2023 User Manual

Download Manuals:

Jayco 2023 Top Accessories

[amalinkspro_table id=”32452″ new-window=”on” nofollow=”on” addtocart=”off” /]

Leave a Reply

Your email address will not be published. Required fields are marked *