New Holland LS140 Workshop Manual page 419

Op. 50 100
HEATER/DEFROSTER (CAB)
Switch and Control Panel
8. Disconnect the negative (-) battery cable to pre-
vent possible shorting of the electrical system.
9. Remove the switch assembly retaining hard-
ware, 1.
10. Remove the rear support panel, 2, to access the
switch assembly and wire harness.
11. Disconnect the switch wire harness from the
heater harness connector.
Switch Wiring
The heater switch, 1, has four terminals marked, L,
M, H, and B, that the wire harness must be connected
to.
Connect the wires as follows:
Terminal Wire
L R/W (Red/White)
M Y (Yellow)
H O (Orange)
B O/DKBL (Orange/Dark Blue)
Relay and Fuse Block
1 - Fuse block - 20 amp
2 - Relay
SECTION 50 - CAB CLIMATE CONTROL
19995733
50-2
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