Ignitor

1.Remove motor and fan guard from heater (see Motor, page 11, steps 1 through 5).

2.Remove black ignitor wire from piezo ignitor. Access ignitor wire through underside of heater base (see Figure 11). Push wire up through bushing in heater shell.

3.Remove ignitor mounting screw from rear head using nut-driver or stan- dard screwdriver (see Figure 12).

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 13).

8.Test for spark.

WARNING: Make sure heater is disconnected from propane supply. Heater could ignite causing severe burns.

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 12, steps 12 through 16).

Piezo Ignitor

Bushing

Ignitor Wire

Underside of

Heater Base

Figure 11 - Removing Ignitor Wire from Piezo Ignitor

Rear

Head

Ignitor

Mounting

Screw

Ignitor

Figure 12 - Removing Ignitor Mounting Screw and Ignitor

Target

Plate

Gap

Area

Ignitor

Electrode

Figure 13 - Clearance between Ignitor Electrode and Target Plate

13

100585

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Image 13
Desa BLP155AT owner manual Removing Ignitor Wire from Piezo Ignitor