Carrier IDEALCOMFORT 58MVC - Manual (Page 12)

12
ELECTRICAL SHOCK, UNIT MAY NOT OPERATE
HAZARD
Failure to follow this warning could result in personal
injury or death.
Blower access panel door switch opens 115--v power to
furnace control. No component operation can occur unless
switch is closed. Caution must be taken when manually
closing this switch for service purposes.
!
WARNING
g. The AMBER LED will flash the status codes in the order
of occurence. Record status codes until status code 11
flashes (1 short and 1 long).
h. After status code #11 flashes, the status codes will repeat
until setup switch SW1--1 is turned off.
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. Look into blower access panel sight glass for current LED
status code.
b. Remove blower access panel.
c. Turn setup switch SW1--1 to ON position. (See Fig. 16
or 21 for location.)
d. Jumper thermostat terminals R, W/W1, and Y/Y2 on
furnace control.
e. Manually close blower access panel door switch. Use a
piece of tape to hold switch closed.
f. After status code 11 flashes for at least 2 times, remove
R, W/W1, and Y/Y2 jumpers.
g. Turn setup switch SW1--1 to OFF position.
h. Remove tape to release blower access panel door switch
and replace blower access panel.
i. Operate furnace through 1 heat cycle to check for proper
operation and check LED status.
j. 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.
b. When items (1) through (5) above have been completed,
the following will occur:
(1.) Inducer motor operates at medium speed through
step (3), then turns off.
(2.) After waiting for 15 sec, hot surface igniter is
energized for 15 sec, then de--energized.
(3.) Main blower motor operates at midrange airflow for
15 sec, then turns off.
(4.) After component operation test is completed, 1 or
more fault codes (11, 25, 41, or 42) will flash. See
service label on back of main furnace door or Fig.
20 for explanation of codes.
NOTE: To repeat component test, turn setup switch SW1--6 to
OFF and then back to ON.
c. After component test, perform the following:
(1.) Remove tape to release blower access panel door
switch and turn setup switch SW1--6 to OFF
position.
(2.) Replace blower access panel.
(3.) Operate furnace through 1 heat cycle to check for
proper operation and check LED status.
(4.) If furnace is operating properly and LEDs indicate
proper operation, replace main furnace door.
58MV
C