Auto User Guide

Jayco Alante 2023 Generator User Manual

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Jayco Alante 2023 Generator User Manual


Your motor home is equipped with an LP or a fuel-powered generator. The generator produces 120/240-volt power compatible with the motor home electrical system. It can power the entire motor home when 120/240-volt shore power is not available.

CARBON MONOXIDE IS DEADLY! Do not run the generator when your motor home is indoors or in a confined space.

DO NOT use the AGS AUTO ON or QUIET ON modes (if so equipped) when your motor home is indoors or in a confined space. Asphyxiation or carbon monoxide poisoning hazards exist whenever genera-tor exhaust gasses can accumulate. MOVING PARTS AND ELECTRICITY can cause severe personal injury or death.

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To reduce exposure to these hazards, always disable AGS (if so equipped) before:

  • Sleeping in the vehicle, unless the vehicle has a working CARBON MONOXIDE detector.
  • Parking vehicle in the garage or confined space.
  • Parking vehicle for storage.
  • Servicing vehicle for storage.
  • Servicing generator.
  • Servicing batteries.
  • Servicing appliances or electrical systems.
  • Fueling the vehicle.

Before Starting the Generator

  1. Make sure the carbon monoxide detector is working.
  2. Turn off air conditioners and all other 120-volt appliances.
  3. Check for fuel, exhaust, and coolant leaks.
    STOP the generator immediately if there is a fuel, exhaust or coolant leak. Have all leaks repaired prior to placing the generator back in service.
    Excessive usage can overheat and damage the generator starter motor. Do not engage the starter motor for more than 20 seconds at a time. If the generator does not start after the first attempt, wait at least two minutes before beginning another start sequence. If the generator does not start after a third attempt, refer to the generator owner’s manual for additional information.
    Transfer switch
    For more information, see the Automatic Transfer Switch (ATS) section.
    The diesel (or gas) generator requires 12-volt power from the house auxiliary batteries to start and draws diesel fuel (or gas) to operate from the chassis fuel tank. If the fuel level in the chassis fuel tank drops to or below 1/4 full, the generator will shut off and cannot be re-started until the fuel tank is filled to above 1/4 full.
    During periods of extended storage:
  4. Add a diesel fuel additive to the chassis fuel tank to prevent algae growth (only with a diesel-fueled generator).
  5. Completely fill the chassis diesel fuel tank to prevent water condensation and rust in the tank (only with a diesel-fueled generator).
  6. Cover the end of the generator exhaust pipe with a screen to prevent bug and rodent intrusion.

With the exception of simple items, such as normal maintenance (i.e., oil changes, etc.), all service work should be done by an authorized repair facility. Improper adjustments can damage the generator and electrical appliances and can result in a safety hazard. Follow the generator owner’s manual for maintenance intervals and recommendations.

Exercising Your Generator – When storing the generator for extended periods of time, it is important to run the generator regularly to keep it in good working order. Lack of exercise can cause moisture build-up in the fuel system resulting in poor performance. For more information on generator operation and maintenance, refer to the generator owner’s manual.

Starting the Generator

Your motorhome has manual switches located at the Command Center panel. There are secondary switches located on the dash, in an overhead cabinet, or on the generator itself. An hour meter that keeps track of generator hours used is located near the switch and a separate hour meter on the generator.

To Manually Start the Generator

  1. At either “START/STOP” switch, press and hold the start portion of the switch to start the generator. Depending on the outside temperature the start process can take up to 15 seconds. Once the generator starts running, release the switch.
  2. An LED above the start switch will light when the generator is running.
  3. For better performance and engine life, especially in colder weather, let the generator engine warm up for two minutes before turning “ON” 120-volt appliances.

For more information on generator operation and maintenance, refer to the manufacturer’s owner’s manual.

Solar Panel

Adding solar panels or equipment will affect the carrying capacity of your recreation vehicle. Vehicle weight ratings should be considered before adding these components.

Solar panels produce 12-volt DC electricity when exposed to sunlight. The energy produced by the solar panels is used to charge the house auxiliary and chassis batteries.

The controller is capable of charging two battery banks – house and chassis. A status LED indicates the connectivity of batteries. Battery charging and operating parameters are adjusted using the Firefly Vega touch touchscreen. Refer to the manufacturer’s operation manual in your warranty packet for more detailed information.

Clean the solar panel’s upper surface regularly using a soft cloth or sponge with water and mild detergent. Do not use harsh chemicals or abrasive brushes that might damage the panels’ upper translucent surface. For additional information, refer to the manufacturer’s manuals for the controller and monitor.

Fuel Safety

Automotive fuels can cause serious injury or death if misused or mishandled. If you have further questions, consult your dealer or Customer Service for assistance.

  • Always shut OFF the vehicle engine while refueling.
  • Do not bring or store fuel or other flammable liquids inside the motor home as a fire or explosion may result.
  • Before refueling, extinguish all smoking materials and any open flames.
  • Before refueling, always turn OFF all spark-producing appliances (i.e., water heaters, furnaces, etc.).
  • Do not overfill the fuel tank(s). The pressure in an overfilled fuel tank may cause leakage and lead to fuel spray and/or fire.
  • Fuel spills represent a serious fire hazard, and should be cleaned up immediately.
  • Never restart an engine or re-light any pilot lights while raw fuel is present.


Fuel Selection
Some generators are fueled by the same system used to fuel the chassis engine. Check the generator manufacturer and the chassis manufacturer information to help determine the type of fuel best suited for this dual application.

Fuel Filler Cap

Do not replace the fuel fill cap with one of a different type. Only use a cap specified for your motor home. The use of a substitute cap may create excessive fuel system pressure, resulting in fuel station damage and improper operation in a collision.

Remove the fuel fill cap by slowly turning it counterclockwise, waiting for any “hiss” noise to stop, and then unscrew the cap all the way. To close the fuel fill cap, securely turn the cap clockwise until you hear clicking sounds.

Filling the fuel tank

All pilot lights, appliances, and igniters (see operating instructions) should be turned off before refueling motor fuel tanks. These can cause the ignition of flammable vapors, which can lead to a fire or explosion.
Use care when fueling your motor home. If you spill fuel on the motor home, clean it up immediately. Fuel can dull or soften paint and damage other surfaces.

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Reference Links

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