Troubleshooting Guide

This troubleshooting guide will offer possible solutions to the most common customer questions concerning a variety of components on your Vistabule. This guide is not exhaustive, but you will likely be able to fix your issue by following these simple steps. As always, please contact us if you have any questions or concerns.

Vistabule – Email support@vistabule.com / # 612-808-5974 (M-F, 8AM – 4PM)

• Is the main power switch in the galley on?
• What does the battery monitor or voltmeter read?
  • A full charge for an AGM battery will be anything over 12.6 volts, and over 13.2 volts on a Lithium battery.  Check the 25amp main fuse and its connection to the electrical block. Is the trailer plugged in, and if so, is the GFCI* green light indicator on? (See picture[s] in “Battery Not Charging” section)
• Check/test the connection of your power/extension cord.

• Is the main power switch on and the battery charged?
• If all outlets are not working, it is likely a blown fuse.
  • You can replace a blown fuse with a small pair of pliers and your included set of replacement fuses.

• Is the trailer plugged in?
• GFCI* tripped?
• A green light on the GFCI outlet indicates that it has power and is working properly.
  • No light will indicate a tripped GFCI, and a red light indicates a fault, and the outlet likely needs replacing.
  • Keep in mind the outlets only work and can only be tested/reset when plugged into an exterior power source such as a wall outlet or generator.
  • These outlets are not connected to the trailer’s battery.  The battery charger only works when the trailer is plugged into a power source.

• Check your vehicle’s owner’s manual or your car dealership to determine if your car has a “smart alternator”.
  • A vehicle with a smart alternator may not provide a consistent charge to your Vistabule and can potentially draw power from the trailer’s battery! Contact Vistabule if you have further questions.

• Check for a blown fuse.
  • If multiple lights are out, it is typically a fuse.  If a single light is out, the problem is usually the light itself. If you have a faulty light fixture, please contact us so we can arrange a replacement.

• Check for a blown fuse.
• Does it beep continuously and then power off? If so, contact the manufacturer, Maxxair, and/or follow up with Vistabule if they don’t resolve your issue.

• Is the trailer plugged in to an exterior power source?
  • The A/C requires an exterior power source for power—the trailer needs to be plugged in for it to function. If the problem persists, see troubleshooting for the AC/120v outlets on page 2.
• The A/C plug has a built-in surge protector and can be found in the electrical compartment. The plug will have a green indicator light during normal operation and can be tripped and reset like the GFCI outlet.

• Make sure the diverter valve is in the correct orientation (pointing up) when using your freshwater tank (see photo).
• Check for a blown fuse.
• If the water pump runs constantly without pumping water, your tank is likely very low or empty.

• Remember to always turn the stove burners and/or furnace off first, then shut off the propane tank before troubleshooting.
• Is the gas tank on?
• Is the trailer powered on (for electric ignition), and are you getting a spark?
• Have you recently had your tank filled?
  • It may be overfilled—an over-pressurized tank, or a sudden release of propane, can cause the check valve to seat.
    • To reset the check valve, make sure the stove burners are turned off and the furnace is off, then turn the propane tank off. 
    • Next, unscrew the green cap from the propane tank and let it sit for two minutes.
    • Now, screw the green cap back on the propane tank and turn the tank on very slowly, in ¼ turn increments. The initial turn should be turned on very slowly and continue until the valve is all the way open.

• Is the trailer powered on and the propane tank opened?
• If your furnace’s thermostat is showing a flashing or solid red light, the furnace is indicating a fault. See your owner’s manual on how to reset your furnace to factory settings.
• If your furnace still doesn’t work, please contact Vistabule.

• Is the trailer power switch on?
• Check the plug behind the Dometic cooler to ensure the plug is fully inserted into the 12v socket.
• Check the cooler’s battery protection level, it should be set to “Low”.
  • To do this, cycle through the display on your cooler, select “Battery protection”, and set it to “Low”.

• The cooler the temps get the more ventilation is required.
  • Condensation forms when the warm air and moisture from your breathing as well as your body heat hits the colder surfaces of your trailer (e.g., the windows), causing that moisture to condense into liquid form over time. A properly ventilated trailer will significantly reduce condensation build-up.
    • Are you keeping your side vents open at night? Is your ceiling fan venting air out of the trailer cabin? Are your door/porthole windows open slightly for airflow?