Manual 2100-694B
Page
61 of 62
18. Leaving wiring harness unplugged, remove blower
assembly from unit.
19. Using a 1/4" hex driver, remove the screws from
the blower control module assembly so it can be
removed from the motor assembly (see Figure 71).
20. Unplug the motor from the module. Measure
resistance between all three phases of the motor
wiring harness plug and then all three phases and
the motor chassis (see Figure 72 on page 62).
FIGURE 70
Testing Voltage on Blower Motor 6-Pin Plug
FIGURE 71
FASCO Blower Control Module Bolt Removal
TABLE 24
FASCO Terminal 10 Output
Blower %
Y1 VDC
VDC at Terminal
10 at Plug
0
0
0
10
1
1.4
20
2
2.8
30
3
4.2
40
4
5.6
50
5
7
60
6
8.4
70
7
9.8
80
8
11.2
90
9
12.6
100
10
14
A. Measurement steps (from Figure 72).
1 Phase A to Phase C
2 Phase A to Phase B
3 Phase B to Phase C
4 Phase A to Ground
5 Phase B to Ground
6 Phase C to Ground
Terminal #10
See Table 23
Speed Signal
