TROUBLESHOOTING
37
Troubleshooting:
F1: BLOWER (Blower Running Status Bad)
YES
YES
NO
To From Description Expected Resistance
Black Red Winding (A-B) 5.9-7.3 Ohms
Black White Winding (A-C) 5.9-7.3 Ohms
Red White Winding (B-C) 5.9-7.3 Ohms
Black, Red, or White Green Windings to Chassis Open
Motor Windings Resistance Table
Replace blower motor(s).
Check the wire harness
and if necessary, replace
the control board.
Remove obstruction
or if necessary,
replace blower
motor(s).
Fault Code Troubleshooting
From TEST MODE, you can run oven diagnostics and check fault counts. To access TEST MODE or turn on
Diagnostic mode, see page 16. For illustrations on removing/replacing oven components, see the appendix at the
end of this manual.
YES
Do resistance measurements
between windings and
chassis agree with values on
motor windings resistance
table (below)? (Be sure to
check both the top and
bottom blower motors.)
Is each blower motor
spinning freely?
NO
Are Status Indicators
“B” and “T” backlit in
TEST MODE? (page 16)
NO
NO
YES
Replace motor
controller.
1. Locate remote test points on the wiring
harness (left side).
2. Ground QC11-3 (top) and QC11-6
(bottom) to chassis to remove the back-
light from the status indicators.
3. While grounded, check the terminals on
the control wiring plug for 0-10 VDC
(see schematic (page 49) for QC11
reference) while incrementing the
blower speed in
TEST MODE.
Is DC voltage present throughout all speed
settings in
TEST MODE?
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