Goodman AMVC800805CX AA - Page 51

• Furnace fails to operate.
• Integrated control module LED
display provides
error code.
• Circulator blower
motor senses
a loss of rotor control.
• Circulator blow er
motor senses high
current.
• Abnormal motor loading,
sudden change in speed or
torque, sudden blockage of
furnace air inlet/outlet
• Furnace fails to operate.
• Integrated control module LED
display provides
error code.
• Circulator blow er
motor fails to start 10
consecutive times.
• Obstruction in circular
blow housing.
• Seized circular blow er
motor bearings
• Failed circular blow er
motor.
• Furnace fails to operate.
• Integrated control module LED
display provides
error code.
•
Circulator blower
motor shuts down for
over or under voltage
condition.
•
Circulator blower
motor shuts down
due to over
temperature condition
on pow er module.
• High AC line voltage to
furnace.
• Low AC line voltace to
furnace.
• High ambient temperatures.
• Furnace fails to operate.
• Integrated control module LED
display provides
error
code.
•
Circulator blower
motor does not have
enough informa tion to
operate properly .
Motor fails to start 40
consecutive times.
• Er ror with integrated
control mo dule. Mo tor has a
rotor condition.
• Furnace operates at
reduced performance or
operates on low stage when
high stage is expected.
• Integrated control module LED
display provides
error code.
•
Airflow is low er than
demanded.
• Blocked filters.
• Restrictive ductw ork.
• Undersized ductwork.
• Check integrated control module.
Verify control is populated w ith
correct shared data set. See data
errors above for details. Check for
locked rotor condition ( see error
code above for details).
• Turn pow er off prior to
repair.
• Check filters for blockage. Clean
filters or remove obstruction.
• Check ductw ork for blockage.
Remove obstruction. Verify all
registers are fully open.
• Verif y ductwork is appropriately
sized for system. Resize/replace
ductwork if necessary.
• Turn power OFF prior to
repair.
• Check filters, filter grills/registers,
duct system, and furnace air
inlet/outlet for blockages.
• Turn power OFF prior to
repair
• Check circular blower for
obstructions. Remove and
repair/replace w heel/m
otor if
necessary
• Turn power OFF prior to
repair.
• Replace motor w ith correct
replacement part.
• Replace w heel w ith correc
t
replacement part.
• Check power to furnace. Verif y
line voltage to furnace is w ithin the
range specif ied on the furnace
rating plate. See "III. Pr oduct
description" and IV Location
Requirements and Considerations"
furnace installation requirements.
• Turn power OFF prior to
repair.
• Replace motor w ith correct
replacement part.
• Use memory card for the
specif c mo del.
Symptoms of Abnormal
Operation
Diagnostic /
Status LED
Codes
Possible CausesCorrective ActionsNotes & CautionsFault Description
TROUBLESHOOTING
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