105331-01C
9
9
For more information, visit www.desatech.com
For more information, visit www.desatech.com
IGNITOR
1.
Remove motor and fan guard from heater (see Motor, page 8,
steps 1 through 5).
2.
Remove black ignitor wire from piezo ignitor. Access ignitor
wire through underside of heater base (see Figure 14). Push
wire up through bushing in heater shell.
3.
Remove ignitor mounting screw from rear head using nut-driver
or standard screwdriver (see Figure 15).
4.
Remove ignitor from rear head.
5.
Install new ignitor. Attach ignitor to rear head with ignitor
mounting screw.
6.
Run ignitor wire from new ignitor through bushing in heater
shell. Attach ignitor wire to piezo ignitor.
7.
Set gap between ignitor electrode and target plate to .17" (see
Figure 16).
SERVICE PROCEDURES
Continued
Rear Head
Figure 15 - Removing Ignitor Mounting Screw and Ignitor
Figure 14 - Removing Ignitor Wire from Piezo Ignitor
Ignitor
Ignitor
Mounting
Screw
Bushing
Piezo Ignitor
Underside of
Heater Base
Ignitor Wire
Target Plate
Gap
Area
Figure 16 - Clearance between Ignitor Electrode and Target
Plate
Ignitor
Electrode
WARNING: Make sure heater is disconnected
from propane supply. Heater could ignite causing
severe burns.
8.
Test for spark. Push piezo ignitor button and watch for spark
between ignitor electrode and target plate.
9.
Place motor and fan guard into rear of heater shell (see Motor,
page 8, steps 9 through 10).
SERVICE PROCEDURES
Ignitor
