Jayco Greyhawk 2018, Owner'S Manual

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Section 9: Heating and Cooling
Furnace
The furnace installed in your recreation vehicle is controlled by a 12-volt DC thermostat.
Depending on your model, there may be up to two thermostats enabling you to control the
temperature to your comfort level.
The furnace requires both 12-volt power and propane gas for full operation. Make sure you
have sufficient power available before operating your furnace.
If you have any questions contact your dealer or Customer Service. A qualified RV technician
should perform all furnace maintenance at least once a year (more often depending on
furnace usage). Never attempt to repair the furnace yourself.
Ducting & Return Air
All heat discharges, registers and return air grills must be free and clear of obstructions.
This includes all closeable registers that are intended to reduce airflow, do not shut it off
completely.
Fireplace (If So Equipped)
Your recreational vehicle may include an electric fireplace insert. For detailed operating and
safety information, refer to the manufacturer’s user guide.
The furnace should be inspected periodically (monthly during the
heating season) for presence of soot on the vent. Soot is formed
whenever combustion is incomplete. This is a visual warning that the
furnace is operating in an unsafe manner. If soot is observed on the vent,
immediately shut the furnace OFF and contact a qualified service agency.
Operating the furnace under this condition could lead to serious property
damage, personal injury or loss of life.
To ensure your personal safety, do not obstruct or alter the furnace in any
manner. Do not install screens over the vent for any reason. Screens will
become restricted and cause unsafe furnace operation. For your safety,
only the manufacturer’s factory authorized parts should be used on your
furnace.

rain sensor that will close the vent automatically when it rains. The rain sensor can be turned
on/off by holding the DOWN button for 3 seconds.
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