Desa RCLP50-F Service Procedures, Continued, Removing Ignitor Wire from, Piezo Ignitor

SERVICE PROCEDURES

Continued

FAN

1.Remove three screws that attach fan guard to heater shell.

2.Remove motor and fan guard from heater shell (see Figure 10, page 7).

3.Use hex wrench to loosen set screw that holds fan to motor shaft (see Figure 11, page 7).

4.Remove fan. Be careful not to damage the fan blade pitch.

5a. If replacing fan, remove old fan and discard. Go to step 7 below.

5b. If cleaning fan, use soft cloth moistened with kerosene or solvent.

6.Dry fan thoroughly.

7.Place fan onto motor shaft of new motor. Make sure set screw contacts flat surface on motor shaft. Tighten set screw firmly (40-50 inch-pounds).

8.Place motor and fan guard into rear of heater shell. Make sure power cord is properly lo- cated (see Figure 13, page 7).

9.Insert three screws through heater shell and into fan guard. Tighten screws firmly.

IGNITOR

1.Remove motor and fan guard from heater (see Motor, page 7, 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 0.17" (4.3 mm) (see Figure 16).

WARNING: Make sure heater is disconnected from propane supply. Heater could ignite caus- ing 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 7, steps 9 and 10).

Piezo

Ignitor

Ignitor Wire

Bushing

Underside of

Heater Base

Figure 14 - Removing Ignitor Wire from

Piezo Ignitor

Rear

Head

Ignitor	Ignitor
Mounting
Screw

Figure 15 - Removing Ignitor Mounting

Screw and Ignitor

Target Plate	Ignitor
	Electrode

Gap

Area

Figure 16 - Clearance between Ignitor

Electrode and Target Plate

8 www.desatech.com 105339-01C