SYMPTOM
POSSIBLE CAUSES
Blower motor doesn’t run with power switch in "ON" or
"COOL DOWN" position.
1.
Line voltage incorrect.
2.
Power switch (S1) malfunction.
3.
Fan speed switch (S3) malfunction.
4.
Solid sate relay (SSR) malfunction. See SOLID
STATE RELAY TEST under COMPUTER
CONTROL.
5.
Interconnecting wiring malfunction.
6.
Motor inoperative.
7.
Computer control malfunction. See COMPUTER
CONTROL OPERATIONAL TEST.
Error Codes
In the display window, the error code will
alternate between the code and the oven cavity
temperature or dashes if the oven is calling for
heat (heat light on). The exact error code
displayed will depend on the priority assigned to
the problem in the EPROM'S software. The lower
the error code number, the higher the priority. If
more than one problem occurs at the same time,
the error code assigned to the higher priority
problem will be displayed. Refer to the error code
table below to solve the problem. If the lower
priority problem still exists, the next error code
will be displayed. When the condition causing the
error is resolved, normal oven operation can
resume.
NOTE:
To check a "Setup Parameter" and its
corresponding "Data Value", see SETUP MODE
under COMPUTER CONTROL.
NOTE:
If the cause of the error is not apparent, check
for these conditions as they may also cause errors to
occur: Electrical noise or a noise event, excess
environmental moisture or temperature, or vibration.
CODE & PROBLEM
PROBABLE CAUSE
SOLUTION
Er01 - ROM checksum error
Internal ROM malfunction
Cycle power
Er02 - RAM checksum error
Internal RAM malfunction
Cycle power
Er03 - Ambient sensor error
Ambient temperature is below 32°F
Check ambient temperature at the
control.
Er04 - Configuration error
Microprocessor malfunction
Cycle power
Er05 - EPROM error
Power loss while storing data
Cycle power
Er06 - Zone 1 A/D underflow error
•
Incorrect sensor type
•
Measuring temperature outside
the sensor range
•
Check the InP1 setup
parameter. Verify it matches
your sensor.
•
Check sensor and connections
for a reversed or open sensor. If
the condition causing the error is
resolved, the error will clear.
VC4E & VC6E Series Full Size Electric Convection Ovens - TROUBLESHOOTING
Page 63 of 64
F25105 Rev. B (0217)
