Airstream Excella 500 1973 Owner's Manual page 44

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When cleaning, remove all food and clean the
interior and all other plastic parts with warm
water, and mild detergents. Never use abrasive
or caustic cleaning powders, polishes, cleaning
paste, gasoline, turpentine or other solvent
type cleaners. Use a damp cloth for cleaning
and finish with a soft dry cloth.
When the refrigerator is to be out of opera¬
tion for some time, always leave the door
slightly open or place a pie tin of barbecue
charcoal on the shelf.
Incorporated in the burner bracket is an
automatic flame failure device which allows
gas to pass only when the burner is lighted,
keeping the thermocouple hot. Should the
flame be blown out, the thermocouple will
cool and the device will cut off the flow of
gas to the burner.
For electric operation, follow these instruc¬
tions:
1. To start the refrigerator, turn the gas valve
(B) to the shut-off position.
2. Check to be sure the electrical cord is
plugged into 110-volt outlet (C) located in
the refrigerator exterior access panel. Turn
the switch lever (A), located in the same
area, to the ON position.
3. Turn the electric thermostat knob (G) to
setting No. 4.
For best operation even during extended stays
in parks your unit should be periodically run
on gas.
The refrigerator has automatic thermostatic
control of the temperature in the food storage
space. The gas thermostat (C) controls the
temperature during gas operation, while the
electric thermostat (G) controls the tempera¬
ture during electric operation. Be sure to
make the temperature setting on the correct
thermostat.
The following are some trouble shooting tips
for emergency use only. They relate to gas
operation and should normally be done by
the dealer.
Problem: Flame goes out. The thermostat is
out of adjustment. To adjust it, turn the dial
to "zero". If the flame does not go down to
the "low" by-pass setting, follow this pro¬
cedure:
1. Unscrew the large cap screw at the rear of
the thermostat and remove the valve. Clean
the seat and valve, and replace.
2. If procedure (1) does not correct the
problem,
adjust the set screw out (in
counterclockwise direction) until the flame
goes down to the "low" position.
If the flame keeps going out when the dial is
turned to (O), remove and clean the by-pass
screw which is located as shown in the
diagram above.
Problem: Burner does not light. Remove and
clean the burner barrel, and/or check the gas
supply.
On., gas refrigerators, th'e flue will require
cleaning at least every six months. To do this,
it will be necessary to gain access to the back
of the cabinet. When cleaning the flue pro¬
ceed as follows:
By-Pass Screw
Spring
Adjustment Screw
Cap
Thermostat
Unscrew the burner housing, then lift out the
baffle on its support wire from the top of the
boiler tube.
From the top, clean the flue with a suitable
flue brush. Also clean the baffle, before
putting back in place.
An obstruction in the flue will reduce or stop
flue draft. Flue obstructions will cause odors
outside refrigerator, slow freezing and higher
cabinet temperatures.

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