Maytag ATB1935HRW & Q Service Manual page 67

DISCONNECT THE UNIT FROM THE POWER SOURCE
Unit runs excessively. Refrigera-
tor compartments eventually
gets cold enough, but freezer
compartment is too cold.
--AC circuit to fan open (lower
wattage readings).
•Not defrosting (lower wat-
tage readings than normal
and frost buildup or evapor-
ator).
--Defective defrost timer,
defrost heater or defrost
terminal thermostat.
--AC circuit to defrost system
open.
•Temperature control.
•High setting of temperature
control may result in these
conditions under very severe
environmental and usage
conditions (high humidity
and large number of freezer
and refrigerator door
openings).
•Sealed system.
--Overcharge (high wattage
readings).
--Undercharged (low wattage
readings).
--Partial restriction.
•Compressor motor defective.
Inefficient compressor (low
wattage readings).
•Condenser fan.
--AC circuit to fan open (high
wattage reading).
--Defective fan (high wattage
reading).
•Dirty or restricted condenser
due to particularly greasy,
dusty or significant pet traffic
in the home.
•Too much warm food placed
in refrigerator at one time.
•Air (no leak) in sealed system.
•Partial restriction in air duct
from freezer to refrigerator.
•Freezer cold control setting
too cold.
 2002 Maytag Corporation
--Refer to wiring diagrams and
check circuit.
•See below:
--Replace defective part or parts.
--Refer to wiring diagrams and
check circuit.
•See below:
•Check and adjust for proper
setting.
•See below:
--Evacuate and recharge with
proper amount of refrigerant.
--Check and see "Checking
Operating Pressure".
--Check and see "Checking
Operating Pressure".
•Replace.
•See below:
--Refer to wiring diagrams and
check circuit.
--Replace.
•Advise customer that it may
require cleaning periodically in
this environment.
•Advise customer.
•Replace drier and evacuate sys-
tem thoroughly, recharge with
proper amount of refrigerant.
•Check and remove what is
causing the restriction. See "Air
Flow Diagram".
•Adjust control for proper adjust-
ment, see "Freezer Cold Control".
SECTION 5. TROUBLESHOOTING