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5520, 5525, & 5530 WARMING CABINETS
3. Trouble Analysis
Red Warning Lit
Condition #1
Red Warning code,
OF
in temperature
display.
Condition #2
Red Warning code,
temperature
indi-
cation in display.
Has
chamber
set
Is red code still on?
Replace PC board
No
Check
wiring
and
connections
for
open
circuits.
Re-
place
temperature
sensor.
Refer to Operator's
Yes
temperature
been
Manual for temper-
decreased accident-
ature reduction tech-
ally or intentionally
nigue or reset temp-
erature to intended
set point
Check PS and PCB
calibration.
Read-
just if necessary.
1
Calibration good or
adjustable.
Yes
Recheck
unit
for
proper operation.
No
Unit
operation
good
Replace PC board
Yes
Unit good
16
30926
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