Goodman ACVC8 CA Series AMVC8 CA Series Service And Troubleshooting page 49

TROUBLESHOOTING
Sym ptom s of Abnorm al
Ope ration
• 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 fails to operate.
• Integrated control module LED
display provides error code.
• Furnace fails to operate.
• Integrated control module LED
display provides error code.
• Operation different than
expected or no operation.
• Integrated control module LED
display provides error code.
• Furnace fails to operate.
• Integrated control module LED
display provides error code.
Diagnostic /
Status LED Fault Des cription
Codes
• Gas valve is
energized w hen it
should not be.
• Internal Gas Valve
Error
• Aux limit sw itch
open (blow er
compartment)
• Aux sw itch
(condensate sw itch)
open
• Grounding Fault
• Open roll out sw itch • Gas pressure too high
• Data not yet on
netw ork.
• Invalid memory card
data.
• Circulator blow er
motor is not running
w hen it should be
running.
Pos sible Causes
• Misw ired gas valve circuit • Check w iring in gas valve circuit
• Shorted gas valve w iring • Replace integrated control board
• Gas valve relay on
integrated control board
stuck open
• 115 volt pow er supply • Check flters and ductw ork for
w as shut off during heat blockage. Clean flters or remove
cycle. obstruction.
•.Insuffcient conditioned air • Check circulator blow er speed
over the heat exchanger. and performance. Correct
Blocked flters, restrictive speed or replace blow er motor if
ductw ork, improper necessary.
circulator blow er speed, or • Tighten or correct w iring
failed circulator blow er connection.
motor.
• High w ater level in the • Check evap drain pan, trap,
evaporation coil. piping.
• Poor neutral connection • Verify neutral w ire connection to
furnace & continuity to ground
source
• Check / correct gas pressure
• Burners mis-aligned • Check / correct burner alignment
• Restricted heat exchanger • Check / correct restriction
or venting
N o N e w t o k r D a a t • Populate shared data set using
memory card.
• Shared data set on • Verify shared data set is correct
memory card has been for the specifc model. Re-populate
rejected by integrated data using correct memory card if
control module required.
• Loose w iring connection • Tighten or correct w iring
at circulator motor pow er connection.
leads or circulator motor • Verify continuous circuit through
pow er leads disconnected.
inductor.
• Open circuit in inductor or Replace if open or short circuit.
loose w iring connection at • Check circulator blow er motor.
inductor (3/4 Hp and 1 Hp Replace if necessary.
models only).
• Failed circulator blow er
motor.
Corrective Actions
• Turn pow er OFF prior to
repair.
• Turn pow er OFF prior to
repair.
• See Specifcation Sheet
applicable to your model* for
allow able rise range and
proper circulator speed.
• Turn pow er OFF prior to
service.
• Turn pow er off prior to
service
• Turn pow er off prior to
service
• T u
repair
• 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 data is turned off.
• Turn pow er OFF prior to
repair
• 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 data is loaded and
pow er is turned off.
• Turn pow er OFF prior to
repair
• Replace inductor w ith
correct replacement part.
• Replace circulator motor
w ith correct replacement
part.
Notes & Cautions
n r p o w r e O F F p i r r o o t
49