Fault Code Troubleshooting - TurboChef i5 Service Manual

Fault Code Troubleshooting

From , you can run oven diagnostics and check fault counts. To access
TEST MODE
Diagnostic mode, see page 15.
Is the wiring
harness properly
connected?
Check the motor
controller, top and
bottom blower motors,
and I/O control board.
(See page 51 for
schematic.)
NO
Correct the wiring
or replace I/O control
board (page A-8)/motor
controller (page A-7)
if damaged.
To
Black
Black
Red
Black, Red, or White
Figure 33: Motor Windings Resistance Table
Troubleshooting:
F1: BLOWER (Blower Running Status Bad)
Are Status Indicators "B"
YES
and "T" backlit in
? (see page 15)
MODE
YES
Remove obstruction or if neces-
sary, replace blower motor(s)
(pages A-9 through A-10).
Do resistance measurements
between windings and chassis
agree with values on motor
windings resistance table?
(Figure 33, below)
YES
Replace motor
controller. (page A-7)
From Description
Red Winding (A-B)
White Winding (A-C)
White Winding (B-C)
Green Windings to Chassis
NO
TEST
NO
YES
NO
Replace the blower motor(s). Be
sure to check both the top and
bottom blower motors (pages A-9
through A-10).
Expected Resistance
5.9-7.3 Ohms
5.9-7.3 Ohms
5.9-7.3 Ohms
Open
or turn on
TEST MODE
Is each blower motor
spinning freely?
YES
Is output from I/O
board to harness 1-10
volts? (Verify at test
points).
NO
Replace the I/O
board (page A-8).
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