27
TROUBLESHOOTING
Fault Code Troubleshooting
F
rom TEST MODE, you can test separate oven components to help diagnose an issue. To access TEST
MODE, see page 17.
Troubleshooting:
F1:BLOWER FAULT
Access the TEST MODE.
(page 17)
Ar
e the status indicators at
location 7 and 8 pr
esent
(page 18)?
NO
YES
7
8
Open Left End
Bell.
I
s a fault code
pr
esent on the
BMSC?
O
pen the Right
End Bell.
Is a fault code
present on the
BMSC?
See page 28.
YES
YES
NONO
Is the wiring connected properly?
Check the BMSC, blo
wer motor,
and I/O control board (see page
28).
Corr
ect wiring
or r
eplace I/O
control board,
BMSC, or
blower motor
if damaged
(page A-6 =
lower, A-8 =
upper).
Check the I/O control
boar
d, BMSC, and blower
motor wiring (pages 37-38).
I
s the blo
wer motor
spinning fr
eely?
NO
R
emo
v
e obstr
uction or, if
necessar
y
, r
eplace blo
wer
motor (page A-6 = lo
w
er
,
A-8 = upper).
YES
Do resistance measurements
between windings and
chassis agree with values on
motor windings resistance
table (Figure 36)?
YES
See page 28.
NO
R
eplace the
blo
w
er motor
(page A-6 =
lo
w
er
, A-8 =
upper).
To From Description Expected Resistance
B
lack
R
ed
W
inding (A-B)
2.3-2.8 W
B
lack
White W
inding (A-C)
2.3-2.8 W
Red White Winding (B-C)
2.3-2.8 W
N/A Green Windings to chassis Open
F
igure 36: Motor Windings Resistance Table
NO
YES