Piping - Amana GUI Installation Instructions Manual

Associated
Symptoms of Abnormal
Operation
LED Code
• Circulator blower runs
continuously. No furnace
operation.
• Integrated control module
diagnostic LED is flashing
FOUR (4) flashes.
• Furnace fails to operate.
• Integrated control module
diagnostic LED is flashing
SIX (6) flashes.
• Induced draft blower runs
continuously. No furnace
operation.
• Integrated control module
diagnostic LED is flashing
SEVEN (7) flashes.
• Induced draft blower runs
continuously. No furnace
operation.
• Integrated control module
CONTINUOUS
diagnostic LED is flashing
continuously.
Troubleshooting Chart
Fault Description(s)
2
• Primary or auxiliary
limit circuit is open.
4
4 FLASHES
• Rollout limit circuit is
open.
6
• Polarity of 115 volt
6 FLASHES
power is reversed.
7
• Flame sense
microamp signal is
7 FLASHES
low.
• Flame sensed with
C
no call for heat.
FLASHING
Possible Causes
• Insufficient conditioned air
over the heat exchanger.
Blocked filters, restrictive
ductwork, improper
circulator blower speed, or
failed circulator blower.
• Flame rollout.
• Misaligned burners, blocked
flue and/or air inlet pipe, or
failed induced draft blower.
• Loose or improperly
connected wiring.
• Polarity of 115 volt AC power
to furnace or integrated
control module is reversed.
• Poor unit ground.
• Flame sensor is coated/
oxidized.
• Flame sensor incorrectly
positioned in burner flame.
• Lazy burner flame due to
improper gas pressure or
combustion air.
• Short to ground in flame
sense circuit.
• Lingering burner flame.
• Slow closing gas valve
32
Corrective Action Cautions and Notes
• Check filters and ductwork • Turn power OFF
for blockage. Clean filters
or remove obstruction.
• See Product Data
• Check circulator blower
speed and performance.
Correct speed or replace
blower if necessary.
• Check burners for proper
alignment.
• Check flue and air inlet
• See "Vent/Flue
piping for blockage,
proper length, elbows,
and termination. Correct
as necessary.
• Check induced draft
• Replace pressure
blower for proper
performance. Replace, if
necessary.
• Tighten or correct wiring
connection.
• Review wiring diagram to
• Turn power OFF
correct polarity.
• Verify proper ground.
Correct if necessary.
• Check and correct wiring.
• Sand flame sensor is
• Turn power OFF
coated/oxidized.
• Inspect for proper sensor
• Sand flame
alignment.
• Check inlet air piping for
blockage, proper length,
• See "Vent/Flue
elbows, and termination.
• Compare current gas
pressure to rating plate
• See rating plate
info. Adjust as needed.
• Correct short at flame
• Turn power OFF
sensor or in flame
sensor wiring.
• Check for lingering
flame
• Verify proper operation
of gas valve
prior to repair.
Bulletin for
allowable rise
range and proper
circulator speed.
Pipe" section for
piping details.
switch with proper
replacement part.
prior to repair.
prior to repair.
sensor with emery
clot.
Pipe" section for
piping details.
for proper gas
pressure.
prior to repair.