BKI COq Convection Oven - Manual (Page 26)

Convection Oven Maintenance
24
Troubleshooting
Refer to the table below for troubleshooting information.
Problem Indication Cause Possible Solution
Main Power Switch On
does not start oven, the
control screen does not
energize. Main Power Indicator
Light is not lit. Appliance circuit
breaker (isolator) is
turned off or tripped. Call qualified electrician.
Verify power supply to panel
& reset breaker (isolator).
Main Power Indicator
Light is not lit. Controller Fuse is
blown. Call BKI service technician.
Identify & resolve cause of
blown fuse, replace fuse.
High Limit Thermostat
tripped or defective. Call BKI service technician.
Tripped - identify & resolve
cause. Defective - replace
thermostat.
Defective R1 Relay. Call BKI service technician.
Replace relay.
None of the lights illuminate
when controller screen is
touched to activate oven. Light circuit Fuse is
blown. Call BKI service technician.
Identify & resolve cause of
blown fuse, replace fuse.
Not all lights illuminate
when controller screen is
touched to activate oven. Failed Light Bulb(s). Call BKI service technician.
Replace light bulb(s).
Inner Door not
(completely) closed. Close door, make certain
magnetic latch on handle side
of door contacts face of oven. Fans & Heating Elements
do not start when Preheat is
touched on controller
screen.
Inner Door
completely closed. Failed Inner Door
Magnetic Sensor. Call BKI service technician.
Replace magnetic sensor.
With Optional
Dripping Drawer &
Fan Cover Switches. Dripping Drawer not
(completely) installed,
Fan Cover not
(properly) installed. Push dripping drawer fully
into oven, verify Fan Cover
retainers are fully tightened.
Failed Inner Door
Magnetic Sensor.
Failed Dripping Drawer
Switch.
Inner Door is closed
and Dripping Drawer
& Fan Cover properly
installed.
Failed Fan Cover
Switch.
Call BKI service technician.
Troubleshoot switches &
sensor, replace failed
component.
Failed R2 relay. Fans start but Heating
Elements do not heat when
Preheat is touched on
screen.
Defective Controller
output.
Call BKI service technician.
Troubleshoot cause &
replace defective component.