Desa Air Conditioner - Manual (Page 9)

www.desatech.com 113893-01B 9
SERVICE PROCEDURES
Continued
Figure 8 - Removing Spark Plug Wire
from Spark Transformer (Heater may
vary from illustration)
Bushing
Spark Plug
Wire
SPARK TRANSFORMER
1. Remove access panel.
2. Locate and disconnect white, black and orange
wires from spark transformer.
3. Remove screw holding spark transformer to
base. Remove sheet metal nut on transformer
and install on new transformer. Discard spark
transformer.
4. Install new spark transformer. Position new
spark transformer in same manner as old
transformer.
5. Connect white, black and orange wires to new
spark transformer. Connect wires to correct ter-
minals as noted in Wiring Diagram, page 10.
6. Replace access panel.
Figure 9 - Removing Spark Plug Nut
and Spark Plug (Heater may vary from
illustration)
Rear Head
Spark
Plug
3/4" Hex
Head Nut
SPARK PLUG
1. Remove motor, motor mount and fan guard
(see Motor, page 8, steps 1 through 6).
2. Remove orange spark plug wire from spark
plug.
3. From front of heater loosen 3/4" hex nut hold-
ing spark plug in place (see Figure 9).
4. Remove spark plug from rear head.
5. Install new spark plug. Attach spark plug to rear
head with ignitor hex nut removed in step 3.
6. Attach spark plug wire.
7. Test for spark.
WARNING: Make sure heater
is disconnected from propane
supply. Heater could ignite caus-
ing severe burns.
Plug into extension cord and watch for spark
at spark plug.
8. Place motor, motor mount and fan guard into
rear of heater shell (see Motor, page 8, steps
14 through 18).