Desa 4E769B - Manual (Page 12)

Dayton Operating Instructions and Parts Manual
12
Dayton Propane
Construction Heater ®
4E769B
Never attempt to service heater while it is connected to propane supply, operating, or hot. Severe burns
and electrical shock can occur.
Troubleshooting Chart
Symptom Possible Cause(s) Corrective Action
1. No electrical power to heater
2. Fan hitting inside of heater shell
3. Fan blades bent
4. Defective motor
1. User did not follow installation or
operation instructions properly
2. No spark at ignitor. To test for spark,
follow step 8 under Ignitor, page 9.
If you see spark at ignitor, have
heater serviced by qualified service
person. If no spark seen:
A) Loose or disconnected ignitor
wire
B) Wrong spark gap
C) Piezo ignitor loose
D) Bad ignitor electrode
Fan does not turn when heater is
plugged in
Heater will not ignite
1. Check voltage to electrical outlet. If
voltage is good, check heater power
cord for breaks
2. Adjust motor/fan guard to keep fan
from hitting inside of heater shell.
Bend fan guard if necessary
3. Replace fan. See Fan, page 8
4. Replace motor. See Motor, page 8
1. Repeat installation and operation
instructions. See Installation, page 6
and Operation, page 6
2.
A) Check ignitor wire. Tighten or
reattach loose ignitor wire. See Figure
14, page 9 for ignitor wire location
B) Set gap between ignitor electrode
and target plate to .17"
C) Tighten nut holding piezo ignitor
to base of heater
D) Replace ignitor electrode. See
Ignitor, page 9