Goodman ACVC96 BA Series Service And Troubleshooting page 63

TROUBLESHOOTING
Sym ptom s of Abnorm al
Operation
• Furnace fails to operate.
• Integrated control module LED
display provides  error code.
• Furnace fails to operate.
• Integrated control module LED
display provides  error code.
• Furnace operates at reduced
performance.
• Airfow delivered is less than
expected.
• Integrated control module LED
display provides  error code.
• Furnace fails to operate.
• Integrated control module LED
display provides  error code.
• Furnace fails to operate.
• Integrated control module LED
display provides  error code.
• Furnace fails to operate.
• Integrated control module LED
display provides  error code.
• Furnace fails to operate.
• Integrated control module LED
display provides  error
code.
• Furnace operates at
reduced performance or
operates on low stage w hen
high stage is expected.
• Integrated control module LED
display provides  error code.
Diagnostic /
Status LED Fault Description
Codes
• Integrated control

module has lost
communications w ith
circulator blow er
motor.
• Circulator blow er

motor horse pow er in
shared data set does
not match circulator
blow er motor horse
pow er.
• Circulator blow er

motor is operating in a
pow er, temperature,
or speed limiting
condition.
• Circulator blow er

motor senses
a loss of rotor control.
• Circulator blow er
motor senses high
current.
• Circulator blow er

motor fails to start 10
consecutive times.
•
Circulator blow er

motor shuts dow n for
over or under voltage
condition.
•
Circulator blow er
motor shuts dow n
due to over
temperature condition
on pow er module.
•
Circulator blow er

motor does not have
enough information to
operate properly.
Motor fails to start 40
consecutive times.
•
Airflow is low er than

demanded.
Possible Causes
• Loose w iring connection • Tighten or correct w iring
at circulator motor control connection.
leads. • Check circulator blow er motor.
• Failed circulator blow er Replace if necessary.
motor. • Check integrated control module.
• Failed integrated control Replace if necessary.
module.
• Incorrect circulator blow er • Verify circulator blow er if motor
motor in furnace. horse pow er is the same specifed
• Incorrect shared data set for the specifc furnace model.
in integrated control module. Replace if necessary.
• Verify shared data set is correct
for the specifc model. Re-populate
data using correct memory card if
required.
• Blocked filters. • Check filters for blockage. Clean
• Restrictive ductw ork. filters or remove obstruction.
• Undersized ductw ork. • Check ductw ork for blockage.
• High ambient Remove obstruction. Verify all
temperatures. registers are fully open.
• Verify ductw ork is appropriately
sized for system. Resize/replace
ductw ork if necessary.
• See "III. Product Description" and
"IV. Location Requirements &
Considerations" furnace installation
requirements.
• Abnormal motor loading, • Check filters, filter grills/registers,
sudden change in speed or duct system, and furnace air
torque, sudden blockage of inlet/outlet for blockages.
furnace air inlet/outlet
• Obstruction in circular • Check circular blow er for
blow housing. obstructions. Remove and
• Seized circular blow er repair/replace w heel/motor if
motor bearings necessary
• Failed circular blow er
motor.
• High AC line voltage to • Check pow er to furnace. Verify
furnace. line voltage to furnace is w ithin the
• Low AC line voltace to range specified on the furnace
furnace. rating plate. See "III. Product
• High ambient temperatures. description" and IV Location
Requirements and Considerations"
furnace installation requirements.
• Error w ith integrated • Check integrated control module.
control module. Motor has a Verify control is populated w ith
rotor condition. correct shared data set. See data
errors above for details. Check for
locked rotor condition ( see error
code above for details).
• Blocked filters. • Check filters for blockage. Clean
• Restrictive ductw ork. filters or remove obstruction.
• Undersized ductw ork. • Check ductw ork for blockage.
Remove obstruction. Verify all
registers are fully open.
• Verify ductw ork is appropriately
sized for system. Resize/replace
ductw ork if necessary.
Corrective Actions
• Turn pow er OFF prior to
repair
• Replace circulator motor
w ith correct replacement
part.
• Replace integrated control
module w ith correct
replacement part.
• Turn pow er OFF prior to
repair
• Replace motor w ith correct
replacement part.
• Use memory card for the
specifc model
• Insert memory card
BEFORE turning pow er ON.
Memory card may be
removed after data is loaded
and pow er is turned off.
• Error code w ill be cleared
once shared data and motor
horse pow er match.
• Turn pow er OFF prior to
repair.
• Turn pow er OFF prior to
repair
• Turn pow er OFF prior to
repair.
• Replace motor w ith correct
replacement part.
• Replace w heel w ith correct
replacement part.
• Turn pow er OFF prior to
repair.
• Replace motor w ith correct
replacement part.
• Use memory card for the
specifc model.
• Turn pow er off prior to
repair.
• Turn pow er OFF prior to
repair.
Notes & Cautions
63