Desa BC165DT Benutzerhandbuch

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SERVICE PROCEDURES
 WARNING: To avoid risk of 
burn and electrical shock, never 
attempt to service heater while it 
is plugged in, operating or hot.
UPPER SHELL REMOVAL
1.  Remove screws along each side of heater using 
5/16" nut-driver. These screws attach upper and 
lower shells together. See Figure 11 or 12.
2.  Lift upper shell off.
3.  Remove fan guard.
Upper Shell
Fan Guard
Figure 11 - Upper Shell Removal,
40/55/70 Models Only
Figure 12 - Upper Shell Removal,
115/165 Models Only
Fan Guard
Upper Shell
Screw
Screw
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 (see Figure 13).
1.  Remove upper shell (see Figure 11 or 12).
2.  Use  1/8"  allen  wrench  to  loosen  setscrew 
which holds fan to motor shaft.
3.  Slip fan off motor shaft.
Motor Shaft
Setscrew
Figure 13 - Fan, Motor Shaft, and 
Setscrew Location
Motor 
Shaft
Fan
Setscrew
Figure 14 - Fan Cross Section
Fan
Flush
Motor
4.  Clean fan using a 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 14).
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.
AIR OUTPUT, AIR INTAKE AND LINT 
FILTERS
1.  Remove upper shell (see Figure 11 or 12).
2.  Remove filter end cover screws using 5/16" nut-
driver (see Figure 15 or Figure 16, page 11).
3.  Remove filter end cover.
4.  Replace air output and lint filters.
5.  Wash or replace air intake filter (see Preventa-
tive Maintenance Schedule
, page 8).
Air Intake Filter
Lint Filter
Filter End 
Cover
Air Output Filter
Figure 15 - Air Output, Air Intake, and 
Lint Filters, 40/55/70 Models Only