Troubleshooting Chart - Whirlpool ACM052MM Service Manual

PROBLEM
1. Unit does not run.
2. Fan motor runs, com-
pressor does not run.
3. Compressor runs, fan
motor does not run.
4. No cooling, compres-
sor and fan motor
running.
5. Insufficient cooling,
compressor and fan
motor running.

TROUBLESHOOTING CHART

PROBABLE CAUSE
1a. No power to unit.
1b. Low voltage.
1c. Failed component or incorrect wiring.
2a. Incorrect power supply voltage.
2b. Failed component or incorrect wiring.
3a. Blower wheel or fan blade binding.
3b. Incorrect wiring.
3c. Motor windings shorted or motor shaft
stuck, open selector switch, defective
control.
4a. Airflow restriction.
4b.Sealed system problem.
5a.Improper airflow.
5b.Sealed system problem.
5c. Operating 60 Hz unit on 50 Hz current.
5d. Low voltage.
5e. Improper seals.
5f. Improper use/size for area to be cooled.
5g. Fan speed too slow.
1a. Check for power at receptacle,
1b. Customer should contact a
1c. Check all wiring and connec-
2a. Check for proper voltage.
2b.Check all wiring connections,
3a.Check for proper clearance.
3b.Check all wiring.
3c. Check for open or shorted mo-
4a.Check for airflow through con-
4b.Check sealed system for loss
5a.Clean or replace air filter.
5b.Check sealed system for loss
5c. Advise customer that the unit
5d.Check power supply (see 1b).
5e.Insulating seals out of place or
5f. Excessive load. Advise cus-
5g.Check for wrong motor, blower
5-2
CORRECTION
good plug contact, fuses of
correct size and time delay
types. (Have customer contact
electrician if no power is avail-
able at receptacle.)
qualified electrician to correct
this problem.
tions, thermostat, selector
switch, or control.
overload, compressor, capaci-
tor, selector switch, or control.
tor windings, open selector
switch, or control.
denser and evaporator.
of refrigerant or restrictions.
Check for air passage restric-
tion or obstruction. Check for
dirty condenser, or evaporator.
of refrigerant or restrictions.
should be operating on a 60 Hz
electrical supply.
missing on unit. Doors or win-
dows open.
tomer if load is excessive, or
installation is incorrect, or inad-
equate. Instruct on proper op-
eration of controls.
wheel, or fan blade. Check for
binding of fan blade, blower
wheel, or motor shaft. Check
for low voltage and correct
capacitor.