Whirlpool ATE0743RPP, Technical Manual

Page: 52 / 92

5-2
Electrical Shock Hazard
Disconnect power before servicing.
Replace all parts and panels before operating.
Failure to do so can result in death or electrical shock.
MODE (SYSTEM) SWITCH HEAT ANTICIPATOR
Refer to page 4-2 for the procedure for servic-
ing the mode (system) switch.
1. Unplug air conditioner or disconnect power.
2. Disconnect the wires from the mode switch
terminals.
3. Set the ohmmeter to the R x 1 scale.
4. To check the switch contact operation,
touch the ohmmeter test leads to the switch
terminals shown in the following charts:
Refer to page 4-2 for the procedure for servic-
ing the heat anticipator.
1. Unplug air conditioner or disconnect power.
2. Disconnect the heat anticipator wires from
the mode switch terminals.
3. Set the ohmmeter to the R x 10K scale.
4. Touch the ohmmeter test leads to the
ends of the orange heat anticipator wires.
The meter should indicate approximately
56 K
Ω
.
SWITCH POSITION CONTACTS MADE
OFF NONE
LOW COOL
L1 - 2
5 - 3
4 - 6
L - 9
COM - L2
HIGH COOL
L1 - 2
5 - 3
4 - 6
H - 9
COM - L2
SWITCH CONTINUITY
FAN ONLY
8 - H
COM - L2
L1 - 8
HIGH HEAT
L1 - 2
5 - 1
7 - 6
H - 9
COM - L2
LOW HEAT
L1 - 2
5 - 1
7 - 6
L - 9
COM - L2
SWITCH POSITION CONTACTS MADE
OFF NONE
SWITCH CONTINUITY