Owner's Manual

www.desatech.com
111656-01E
7
SERVICE PROCEDURES
WARNING: Never service
heater while it is plugged in,
connected to propane supply,
operating or hot. Severe burns
and electrical shock can occur.
ELECTRICAL SYSTEM
The entire electrical system for this heater is con-
tained within the motor. If any part of the electrical
system is damaged, you must replace motor.
MOTOR
1. Remove three screws that attach fan guard to
heater shell.
2. Remove motor and fan guard from heater shell
(see Figure 9).
3. Use hex wrench to loosen set screw which
holds fan to motor shaft (see Figure 10). Re
-
move fan. Be careful not to damage the fan
blade pitch.
4. Remove two nuts and two screws that attach
fan guard to motor using nut-driver. Remove
fan guard from motor (see Figure 11, page 8).
Figure 9 - Removing Motor and Fan
Guard from Heater
Screw
Screw
Screw
Motor and
Fan Guard
2. Place plastic cover caps over brass fittings on
inlet connector and hose/regulator assembly.
3. Store in dry, clean and safe place. Do not
store hose/regulator assembly inside heater
combustion chamber.
4. When taking heater out of storage, always
check inside of heater. Insects and small
animals may place foreign objects in heater.
Remove motor and other internal parts if
needed to remove foreign objects (see Service
Procedures
).
MAINTENANCE
WARNINGS
• Never service heater while it
is plugged in, connected to
propane supply, operating or
hot. Severe burns and electri
-
cal shock can occur.
• Keep heater clear and free
from combustible materials,
gasoline and other flammable
vapors and liquids.
• Do not block the flow of com-
bustion or ventilation air.
1. Keep heater clean. Clean heater annually or as
needed to remove dust and debris. If heater is
dirty or dusty, clean heater with a damp cloth.
Use household cleaners on difficult spots.
2. Inspect heater before each use. Check connec
-
tions for leaks. Apply mixture of liquid soap
and water to connections. Bubbles forming
show a leak. Correct all leaks at once.
3. Inspect hose/regulator assembly before each
use. If hose is highly worn or cut, replace with
hose specified by manufacturer.
4. Have heater inspected yearly by a qualified
service agency.
5. Keep inside of heater free from combustible
and foreign objects. Remove motor and other
internal parts if needed to clean inside of
heater (see Service Procedures).
6. Clean fan blades each season or as needed (see
Fan, page 8).
STORAGE
Continued
Figure 10 - Setscrew Location
Setscrew