Amana AAC051FRB Service Manual page 10

Troubleshooting Information
To avoid risk of electrical shock, personal injury, or death, disconnect electrical power source to unit and
discharge capacitor through a 10,000 ohm resistor before attempting to service, unless test procedures require
power to be connected. Ensure all ground wires are connected before certifying unit as repaired and/or
operational.
Symptom
Insufficient cooling.
Excessive noise.
10
!
WARNING
Possible Causes
Low refrigerant charge.
Restricted air flow.
Unit undersized for area/room.
Outside coil fan blade or inside coil
blower wheel loose or improperly aligned.
Compressor mounting hardware loose or
grommets worn.
Free parts, loose screws causing or allowing
excessive vibration.
Worn fan motor bearings.
16022379 Rev. 0
Corrective Action
Test sealed system for proper
charge. Ensure system is free
of leaks.
Inspect air filter, indoor/
outdoor coil for dirt. Clean as
required. Check fins on coils
for damage. Straighten fins if
bent, attempt other repairs as
necessary. Replace coil if
repairs cannot be made.
Reduce area being cooled or
replace unit with larger
capacity model.
Check fan blade/blower wheel
for proper position. Reposition
blade or bower wheel.
Ensure hardware attaching fan
blade/blower wheel to motor
shaft is tight.
Check mounting bolts for
tightness. Tighten if
necessary. Don't overtighten.
Inspect grommets for wear.
Inspect unit for parts that may
have worked free, loose/
missing screws, other
problems that
may cause excessive
vibration.
Replace motor
©2003 Maytag Appliances Company