E 350 Van V8-7.3L DSL (1988)
Blower Motor Switch: All Technical Service Bulletins
Blower Motor - Inoperative
Article No.
91-11-17
05/30/91
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HEATER - BLOWER MOTOR INOPERATIVE
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HEATER - BLOWER SWITCH - OVERHEATS AND BECOMES INOPERATIVE
LIGHT TRUCK:
1988-89 ECONOLINE
ISSUE:
The heater blower motor may become inoperative. This can occur if the main heater blower motor switch overheats and becomes inoperative.
ACTION:
Install a new heater blower motor switch. Refer to the following procedure for service details.
1.
Remove the blower motor switch. Refer to the 1988/89 Econoline Shop Manual, Section 36-23, for removal procedure.
2.
Cut the wires leading to the damaged heater blower switch connector and discard the connector.
3.
If the heater switch blower switch is damaged, replace it with a new switch (D5AZ-19986-A).
4.
Splice together the wires cut in Step # 2 with the appropriate pigtail wires on the jumper harness (F1UZ-18C629-A); a connector and 4 terminals
with pigtails).
5.
Attach the new connector to the switch.
6.
Install the blower switch. Refer to the 1988/89 Econoline Shop Manual, Section 36-23, for service details.
CAUTION: TO ENSURE PROPER CONNECTION BETWEEN THE SWITCH TERMINALS AND THE CONNECTOR, MAKE SURE THAT
THE CONNECTOR IS FULLY ENGAGED AND IN THE LOCKED POSITION. DO NOT USE A FILLER MATERIAL TO TIGHTEN
THE CONNECTION BECAUSE THESE MATERIALS MAY CAUSE FURTHER OVERHEATING CONCERNS WITH THIS
CONNECTION.
PART NUMBER
PART NAME
CLASS
F1UZ-18C629-A
Heater Blower Switch Jumper
B
Harness
D5AZ-19986-A
Heater Blower Switch
A
OTHER APPLICABLE ARTICLES: NONE
WARRANTY STATUS: Eligible Under Basic Warranty
Coverage
OPERATION DESCRIPTION
TIME
911117A
Install Heater Blower Motor
0.6 Hr.
Switch
DEALER CODING
BASIC PART NO.
CONDITION CODE
19986
65
OASIS CODES:
208000, 208100