Tiffin Motorhomes 2017 Allegro Breeze Owner's Manual page 23

The liquid, when it passes through the tank valve to a lower pressure, vaporizes into a gas, and then
passes through a regulator to maintain a constant pressure. This gas, then, is the actual fuel distributed
through the LP-gas manifold system to the LP-based appliances used in your motorhome.
LP-appliance lighting problems are typically caused by an improperly-adjusted gas regulator. NEVER
attempt to adjust or reset the gas regulator yourself. An authorized service technician is needed to make
these adjustments. As a good preventive-maintenance activity, the regulator should be checked annu-
ally by a service technician and also before every extended trip.
Even though the LP-gas system is leak-checked and verified at the factory at the time of manufacture,
normal usage (travel vibrations, etc.) could loosen the fittings. Consequently, it is wise to check the gas
fittings periodically for leak tightness.
You can wipe some leak-detector solution (e.g., a "liquid-soap"-like solution) on all the fittings, con-
nections, and junctures when the system is under pressure. Should there be any leaks, small bubbles
will appear at any leak sites.
Generally, loose fittings can be tightened to stop the leaks. If this process doesn't work, then you must
shut off the main gas valve at the LP cylinder(s) and immediately consult an authorized service tech-
nician to determine what repairs are necessary. Leaks may also be detected by noting a sulfurous odor
(i.e., rotten eggs). DO NOT search for a leak by using a match or open flame.
WAR NING
When the motorhome is not in use, be sure
to close the main LP gas valve at the tank.
When the LP gas tank is to be refilled, close
the main valve to preclude the chance of pi-
lot lights possibly igniting fumes from the
LP fuel. As some LP-gas appliances (e.g.,
refrigerator, furnace, water heater) have Di-
rect Spark Ignition (DSI) systems, it is very
important that these appliances be turned off
when the LP gas is off. The DSI boards will
continue to work (i.e., emit an ignition spark)
even when there is no LP gas available.
SAFETY
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