Download Print this page

Troubleshooting Chart - Maytag Amana MES9 Series Installation Instructions Manual

Single-stage gas furnace, type fsp category iv direct or non direct vent air furnace
Hide thumbs

Advertisement

Troubleshooting Chart

• Circulator blower runs
continuously. No furnace operation.
• Integrated control
module diagnostic LED is
flashing FOUR (4) flashes.
• Induced draft blower and
circulation blower runs
continuously. No furnace
operation.
• Integrated control module
diagnostic LED is flashing FIVE
(5) flashes.
• Furnace fails to operate.
• Integrated control module
diagnostic LED is flashing SIX
(6) flashes.
• No furnace operation.
• Normal furnace operation.
• Integrated control module
diagnostic LED is flashing SEVEN
(7) flashes.
• Furnace not operating.
• Integrated control module
diagnostic LED is flashing EIGHT
(8) flashes.
• Primary or auxiliary
limit circuit is open.
4
4 FLASHES
• Flame sensed with no
5
call for heat.
5 FLASHES
•Rollout limit open.
•Integrated control
6
module fuse is blown.
6 FLASHES
• Flame sense microamp
signal is low.
7
7 FLASHES
• Igniter Relay Fault
8 FLASHES
• Faulty primary or
• Check primary/
auxiliary limit switch.
auxiliary limit.
• Insufficient conditioned
Replace if necessary.
air over the heat
• Check filters and
exchanger. Blocked
ductwork for blockage.
filters, restrictive
Clean filters or remove
ductwork, improper
obstruction.
circulator blower speed,
• Check circulator blower
or failed circulator
speed and performance.
blower.
Correct speed or
• Loose or improperly
replace
connected wiring.
blower if necessary.
• Tighten or correct
wiring connection.
• Short to ground in
• Correct short at flame
flame sense circuit.
sensor or in flame
sensor wiring.
• Flame rollout.
• Check burners for
• Misaligned burners,
proper alignment.
blocked flue and/or air
• Check flue and air inlet
inlet pipe, or failed
piping for blockage,
induced draft blower.
proper length, elbows,
• Loose or improperly
and termination.
connected wiring.
Correct as necessary.
• Short in 24 volt AC
• Check rollout limit.
control circuits or
Replace if necessary.
safety circuits.
• Check induced draft
• Faulty rollout limit.
blower for proper
performance. Replace,
if necessary.
• Tighten or correct
wiring connection.
• Flame sensor is
• Sand flame sensor.
coated/oxidized.
• Inspect for proper
• Flame sensor
sensor alignment.
incorrectly positioned
• Compare current gas
in burner flame.
pressure to rating plate
• Lazy burner flame
info. Adjust as needed.
due to improper gas
pressure or
combustion air.
•Improperly connected
•Check and correct
igniter.
wiring from integrated
• Bad igniter.
control module
• Poor unit ground.
to igniter.
• Poor burner ground.
•Replace bad igniter.
• Faulty integrated
•Check & correct unit
control module.
ground wire.
• Replace bad integrated
control module.
43
• Turn power OFF prior
to repair.
• Replace primary/
auxiliary limit with
proper replacement
part.
• Replace blower with
correct replacement
part.
• Turn power OFF prior
to repair.
• Turn power OFF prior
to repair.
• See "Vent/Flue Pipe"
section for piping
details.
• Replace induced draft
blower with correct
replacement part.
• Replace integrated
control module fuse
with 3A automotive
fuse.
• Read precautions in
"Electrostatic
Discharge" section
of manual.
• Replace rollout limit
with correct
replacement part.
• Turn power OFF prior
to repair.
• Clean flame sensor
with steel wool.
• See "Vent/Flue Pipe"
section for
piping details.
• See rating plate for
proper gas pressure.
• Turn power OFF prior
to repair.
• Replace igniter
w/proper replacement
part.
• Read precautions in
"Electrostatic
Discharge" section
of manual.

Advertisement

loading

  Related Manuals for Maytag Amana MES9 Series