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103252
SERVICE
PROCEDURES
!
WARNING
Never service heater while it is plugged in, operating, or hot.
Severe burns and electrical shock can occur.
Figure 5 - Upper Shell Removal
Figure 7 - Air Output, Air Intake, and Lint Filters
Motor
Shaft
Flush
Figure 6 - Fan Cross Section
Air Output Filter
Filter End Cover
Air Intake Filter
Setscrew
Motor
Upper
Shell
Fan
Guard
Fan
Lint Filter
Fan Guard
Air Output, Air Intake, and
Lint Filters
1. Remove upper shell (see
above).
2. Remove filter end cover screws
using 5/16" nut-driver.
3. Remove filter end cover.
4. Replace air output and lint
filters.
5. Wash or replace air intake filter
(see Preventative Maintenance
Schedule, page 9).
6. Replace filter end cover.
7. Replace fan guard and upper
shell.
IMPORTANT:
Do not oil filters.
Upper Shell Removal
1. Remove screws along each side
of heater using 5/16" nut-
driver. These screws attach
upper and lower shells together.
2. Lift upper shell off.
3. Remove fan guard.
Fan
IMPORTANT:
Remove fan from
motor shaft before removing motor
from heater. The weight of the
motor resting on the fan could
damage the fan pitch.
1. Remove upper shell (see
above).
2. Use 1/8" Allen wrench to
loosen setscrew which holds
fan to motor shaft.
3. Slip fan off motor shaft.
4. Clean fan using soft cloth
moistened with kerosene or
solvent.
5. Dry fan thoroughly.
6. Replace fan on motor shaft.
Place fan hub flush with end of
motor shaft (see Figure 6).
7. Place setscrew on flat of shaft.
Tighten setscrew firmly (40-50
inch-pounds/4.5-5.6 n-m).
8. Replace fan guard and upper
shell.