Troubleshooting Chart - Amana CEC96 Series Manual

T
ROUBLESHOOTING
Green
Symptoms
LED Code
•Furnace does not
operate, four Red •None
flashes on control board
•Furnace does not
operate, five Red •None
flashes on control board
•Furnace does not
operate, six Red flashes •None
on control board
•Furnace does not
operate, seven Red •None
flashes on control board
•Furnace does not
operate, eight Red •None
flashes on control board
•Furnace does not
operate, nine Red •None
flashes on control board
•Furnace does not
operate, ten Red flashes •None
on control board
•Furnace does not
operate, eleven Red
•None
flashes on control board,
inducer running
•Furnace does not
operate, twelve Red •None
flashes on control board
•Furnace does not
operate, control board •None
Red LED on solid
•Furnace does not
operate, control board •None
Red LED rapid flash
•Furnace does not
operate, control board
•None
Red LED with three
double flashes
C
HART
Associated
Amber Red
LED Code
2
LED Code LED Code
•Four
•None repeating
flashes
•Five
•None repeating
flashes
•Six
•None repeating
flashes
•Seven
•None repeating
flashes
•Eight
•None repeating
flashes
•Nine
•None repeating
flashes
•Ten
•None repeating
flashes
•Eleven
•None repeating
flashes
•Twelve
•None repeating
flashes
•None •Solid ON
•None •Rapid Flash •Twinning error
•Three
•None double
flashes
Fault Description
•Temperature rise, duct static,
•Open limit circuit, main
gas pressure, burner alignment,
limit, aux limit, or roll out
orifice plate position, wiring to
switch
all limits
•Control board fuse,
•Limit & rollout circuit open Temperature rise, duct static,
for 15 minutes. Open control gas pressure, burner alignment,
board fuse or rollout switch orifice plate position, wiring to
all limits
•Pressure switch cycling
•Excessive venting restriction,
lockout, pressure switch has
leaking pressure switch tubing
opened 5 times in the same
heating cycle
•Lockout - excessive retries •Gas pressure, gas valve, front
from flame not being proven cover pressure switch, flame
during trial for ignition rod
• Lockout - excessive recycles •Gas pressure, gas valve, front
from flame proving being lost cover pressure switch, flame
after being proven rod
•115 volt hot & neutral supply
to furnace reversed, hot wire
(door switch & L1 on control
•Improper grounding or
board) must read 115 volts to
reverse polarity
ground & neutral. Neutral wire
should measure 0 volts to
ground
•Verify gas valve is not
•Gas valve current detected receiving voltage from an
with no call for heat electrical short. If valve wiring
is correct replace control board
•Open limit switch circuit for •Re-set main power and check
more than 5 minutes indoor blower operation
•Control board igniter relay
•Replace control board
not energizing igniter
•Control board internal fault •Replace control board
•Correct twinning wiring
•Verify pressure switch
function & tubing, verify
•Second stage pressure
inducer operating and pulling
switch stuck open
enough vacuum to engage
switch
56
Check Cautions
•Confirm electrically safe
condition before
proceeding with repairs
•Confirm electrically safe
condition before
proceeding with repairs
•Confirm electrically safe
condition before
proceeding with repairs
•Confirm electrical and
gas safe conditions
before proceeding with
repairs
•Confirm electrical and
gas safe conditions
before proceeding with
repairs
•Confirm electrically safe
condition before
proceeding with repairs
•Confirm electrical and
gas safe conditions
before proceeding with
repairs
•Confirm electrically safe
condition before
proceeding with repairs
•Confirm electrically safe
condition before
proceeding with repairs
•Confirm electrically safe
condition before
proceeding with repairs
•Confirm electrically safe
condition before
proceeding with repairs
•Confirm electrically safe
condition before
proceeding with repairs