Desa 20 User Manual

13

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1. Remove upper shell (see

page 10).

2. Remove fan (see page 19).
3. Remove spark plug wire

from spark plug.

4. Remove spark plug from

burner head using 13/16"
open-end wrench.

5. Clean and regap spark plug

electrodes to .055"
(1.4 mm) gap.

6. Install spark plug in burner

head.

7. Attach spark plug wire to

spark plug.

8. Replace fan (see page 19).
9. Replace fan guard and

upper shell.

Burner
Head

Bend Here
to Adjust
Gap

.055"
(1.4 mm)
Gap

(20,5/26,4 kW [70/90,000 Btu/Hr] Model Shown)

Spark Plug Wire

Spark
Plug