Disconnect power before servicing.
Replace all parts and panels before operating.
Failure to do so can result in death or electrical shock.
FAN SPEED CONTROL
2
L1
Model ACD052
Refer to page 3-4 for the procedure for servic-
ing the fan speed control.
1.
Unplug air conditioner or disconnect power.
2.
Disconnect the wires from the fan speed
control terminals.
3.
Set the ohmmeter to the R x 1 scale.
4.
Touch the ohmmeter test leads to the fan
speed control terminals indicated in the
charts below. The meter should indicate a
closed circuit (0 Ω).
ACD052MM
Switch position
OFF
FAN ONLY
HIGH COOL
LOW COOL
ACM052MM & ACM062MM
Switch position
OFF
FAN ONLY
HIGH COOL
MED COOL
LOW COOL
5
3
L1
Models ACM052
& ACM062
Contacts closed
NONE
L1 to 2
L1 to 3 & L1 to 2
L1 to 3 & L1 to 5
Contacts closed
NONE
L1 to 4
L1 to 5 & L1 to 4
L1 to 5 & L1 to 3
L1 to 5 & L1 to 2
Electrical Shock Hazard
CAPACITOR
5
4
3
2
Refer to page 3-6 or 3-8 for the procedure for
servicing the capacitor.
1.
Unplug air conditioner or disconnect power.
Use a 20,000 Ω, 2-watt resistor and dis-
2.
charge the capacitor. Touch the resistor
leads to terminals C & H and C & F.
3.
Disconnect the wires from the capacitor
terminals.
4.
Set the ohmmeter to the R x 10K scale.
5.
Touch the ohmmeter test leads to the
common (C) terminal and the F terminals.
6.
The meter should indicate several ohms
and gradually return to infinity.
7.
Touch the ohmmeter test leads to the
common (C) terminal and the H terminals.
8.
The meter should indicate several ohms
and gradually return to infinity.
4-2
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