37
TROUBLESHOOTING
Fault Code Troubleshooting
From Test Mode, you can run oven diagnostics and check fault counts. To access Test Mode see page
19, or turn on Diagnostic mode see page “Diagnostic Mode” on page 20, section “Demo Mode ON/
OFF.” To locate oven components for testing, adjustment, or replacement, see the Appendix.
Troubleshooting:
F1: BLOWER (Blower Running Status Bad)
YES
YES
NO
Motor Windings Resistance Table
Replace blower motor.
Remove obstruc-
tion or if necessary,
replace blower
motor.
YES
Do resistance measurements
between windings and
chassis agree with values on
motor windings resistance
table (below)?
Is the blower motor
spinning freely?
NO
Is the Status Indicator
“A” backlit in
? (page “Test
Mode” on page 19)
NO
Replace the
BMSC.
To From Description Expected Resistance
Black Red Winding (A-B) 2.0-2.6 Ω
Black White Winding (A-C) 2.0-2.6 Ω
Red White Winding (B-C) 2.0-2.6 Ω
Black, Red, or White Green Windings to Chassis Open
NO
YES
1. Disconnect control wiring (J1 connector).
2. Ground pin 5 of the J1 connector (Status
OK wire) to chassis to remove the back-
light from status indicator “A” (see “Test
Mode,” page 19 for more details).
Was the back-light removed from status
indicator “A” while pin 5 was grounded?
Check the wire
harness and if nec-
essary, replace the
control board.
NO
YES
Test for voltage on the J1 connector.
1. Ground pin 5 of the J1 connector.
2. While pin 5 is grounded, check the
J1-1 (red) terminal on the control
wiring plug for 0-10 VDC across pin
J1-1 and common (Encore page 48/
Encore 2 page 62) while incrementing
the blower speed in .
Is DC voltage present throughout all speed
settings in on the J1 connector
To Next Page
Loading...
Need help?
General
