Test 3 Motor Test - Kenmore 796.8219 Series Service Manual

Test 3
Motor test
BL2 WH4
4 3
2 1
WH4
4 3
2 1
In diagnostic test mode, press the
START / PAUSE button. Is the voltage
120 VAC between WH1-1(WH) and BL3-
1 (BN)?
YES
With the connectors disconnected,
check the resistance between BL2-1
(WH) and WH4-3 (BN). Is the resistance
2-4 Ω ?
Measure with the door closed.
NO
With the connectors disconnected, check
the resistance between BL2-1 (WH) and
WH4-1 (YL). Is the resistance 0 Ω ?
Measure with the door closed.
YES
With the connectors disconnected, check
the resistance between WH4-3 (BN) and
WH4-1 (YL). Is the resistance 2-4 Ω ?
Measure with the door closed.
NO
With the connectors disconnected, check
the resistance between the terminals of
the thermal fuse on the blower housing.
Is the resistance 0 Ω ?
YES
Is the arm of the idler pulley contacting
the belt switch lever? (Normal operating
position is NO CONTACT.)
With the connectors disconnected, check
the resistance between terminals 1 and 2
(N.O.) of the belt switch on the motor
mount. Is the resistance <1 Ω with no
switch contact?
YES
• Check Motor. (Refer to MOTOR DIAGRAM AND SCHEMATIC.)
• Check if control connector is plugged in.
23
• Replace main
PCB
NO
• Recheck voltage at
main PCB and
replace if no
YES
voltage.
• Check door switch
activation.
• Check wiring
harness and
NO
connections.
• See DOOR
SWITCH TEST #5.
• Recheck voltage at
main PCB and
replace if no
YES
voltage.
•Replace the outlet
thermal fuse.
•Check the
thermistor (test # 3).
NO
•Check exhaust
system for
restrictions.
• Check idler pulley
and arm.
• Check drum belt
condition
(stretched/broken)
YES
• Check drum belt
routing
• Replace the belt
NO
switch.