BCX14G
BCX14G TROUBLESHOOTING GUIDE
20
4.
Checking for logic board input/output LED
indicators, in the hot air mode the amber input
LED’s #6 and #9 need to be on along with the
green output LED #13. Verify LED’S with the
logic board LED designation flow chart
(FIGURE 11).
5.
Also look for LED indicator inputs at the (IFB)
relay board, the CR3 relay LED (D31), CR2
relay LED (D21) and the CR1 relay LED (D11)
will all need to be on. If not check all
connectors and the 24Dcv inputs at the
J7
connector per the wire schematic. Verify
LED’S with the IFB LED indicator designation
flow chart (FIGURE 12).
6.
If all of the above are good continue testing
checking at the (T1) transformer for 24Acv
output if good check the IFB connector
J4
between (J4-1) and (J4-2) 24Acv should be
present.
7.
Check for burner pilots if none check between
the
J4
connector (J4-2) to (J4-3) for 24Acv.
8.
If pilots were on but no main burner check the
J4
connector between (J4-2) to (J4-4) for
24Acv. If not then check the (IFB J4) connector
for damage).
9.
See the Hot air troubleshooting flow chart
(FIGURE 4).
NO OPERATION WITH THE MODE SWITCH
IN STEAM
1.
Verify that the convection motor is running
with the door closed. If not see door switch
troubleshooting flow chart (FIGURE 7).
2.
Verify that the thermostat has powered up,
counted down and displaying a set temperature
along with the heat indicator light activated.
3.
Remove the LH body side panel and tilt the
control panel down for troubleshooting access.
4.
Check for logic board input/output LED
indicators, in the steam mode the amber input
LED’s # 3 and # 6 need to be on along with the
green output LED # 10. Verify LED’S with the
LED designation flow chart (FIGURE 11).
5.
Look for LED indicator inputs present at the
IFB relay board, looking for the CR3 relay
LED (D31), CR2 relay LED (D21) and the
6.
CR7 relay LED (D71) should be on. If not
check IFB connector
J7
between (J7-1) to (J7-
2) for 24Dcv input see wire schematic. Verify
LED’S with the IFB LED indicator flow chart
(FIGURE 12).
7.
If all of the above is good continue testing
checking at the (T2) transformer for 24Acv
8.
Output if good check the IFB connector
J6
between (J6-1) to (J6-2) 24Acv should be
present.
9.
Check for the steam burner pilot if none check
the
J6
connector between (J6-2 to (J6-3) for
24Acv.
10.
If pilot was on but no main burner check the
J6
connector between (J6-2) to (J6-4) for 24Acv.
If not then check the (IFB J6) connector for
possible damage correct as needed). See the
steam mode flow chart (FIGURE 5).
NO
OPERATION
WITH
THE
MODE
SWITCH IN COMBI
1.
Verify that the convection motor is running with
the door fully closed. If not see door switch
troubleshooting flow chart (FIGURE 7).
2.
Verify that the thermostat has powered up,
counted down and displaying a set temperature
along with the heat indicator light is activated.
3.
Remove the LH body side panel and tilt the
control panel down for troubleshooting access.
4.
Checking for logic board input/output LED
indicators, in the Combi mode the amber input
LED’s #2 and #6 need to be on along with the
green output LED #13 and then #10 for 45
seconds intervals of steam while in Combi.
Verify LED’S with the LED designation flow
chart (FIGURE 11).
5.
Look for LED indicator inputs at the (IFB) relay
board, looking for the CR3 relay LED (D31),
CR2 relay LED (D21), CR1 relay LED (D11)
will all need to be on and CR7 relay LED (D71)
will be on during a 45 second steam on time. If
not check all connectors and the 24Dcv input at
the
J7
connector per the wire schematic
between (J7-1) to (J7-2). Verify the LED inputs
with the IFB LED indicator designation flow
chart (FIGURE 12).
