i. Remove tape to release blower access panel door switch
and replace blower access panel.
j. Operate furnace through 1 heat cycle to test for proper
operation and check LED status.
k. If furnace is operating properly and LEDs indicate proper
operation, replace main furnace door.
2. Status codes are erased after 72 hours or they can be manually
erased by performing the following procedure:
a. Leave 115-v power to furnace turned on.
b. Remove main furnace door.
c. Look into blower access panel sight glass for current LED
status code.
d. Remove blower access panel.
e. Turn setup switch SW1-1 to ON position. (See Fig. 13 or
18 for location.)
f. Jumper thermostat terminals R, W/W1, and Y/Y2 on
furnace control.
g. Manually close blower access panel door switch. Use a
piece of tape to hold switch closed.
Blower access panel door switch opens 115-v power to
control center. No component operation can occur unless
switch is closed. Caution must be taken when manually
closing this switch for service purposes. Failure to follow this
warning could result in electrical shock, personal injury, or
death.
h. After status code 11 flashes for at least 2 times, remove R,
W/W1, and Y/Y2 jumpers.
i. Turn setup switch SW1-1 to OFF position.
j. Remove tape to release blower access panel door switch
and replace blower access panel.
k. Operate furnace through 1 heat cycle to check for proper
operation and check LED status.
l. If furnace is operating properly and LEDs indicate proper
operation, replace main furnace door.
3. The control can also assist in troubleshooting by performing a
Component Test. The Component Test will functionally
operate all furnace components, except the gas valve.
NOTE: The component test feature will not operate if the furnace
control is receiving any thermostat signals or until all time delays
have expired.
a. To initiate Component Test proceed with the following:
(1.) Leave 115-v power to furnace turned on.
(2.) Remove main furnace door.
(3.) Remove blower access panel.
(4.) Turn setup switch SW1-6 to ON position.
(5.) Manually close blower access panel door switch. Use
a piece of tape to hold switch closed.
A99118
Fig. 15—Inducer Housing Drain Tube
A99119
Fig. 16—Funnel in Drain and Antifreeze Running
Through Trap
11
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