Henny Penny BCC/BCR-140 Service Manual page 26

Henny Penny
4-2. TROUBLESHOOTING
(Continued)
Display
AL-5 Temperature too low
in the hold mode.
AL-6 Temperature too high in
the hold mode.
Problem
The evaporator is iced-up
after a de-icing cycle.
Too much water on evaporator
fins.
Slow to decrease
in temperature (decline in
performance)
300
ALARMS
Cause
Faulty De-icing Heater
Evaporator temperature at end
of de-icing cycle too low.
Maximum time of de-icing cycle
too short.
The unit has been shut down without
a de-icing cycle.
Compressor not working properly
Evaporator fan not working properly
Temperature of room too high.
Not enough clearance around unit.
Model BCC/BCR-140, BCC/BCR-175, BFR/BCR-350
Correction
Faulty control board - replace control board.
Faulty contactor - replace contactor.
Faulty control board - Replace board.
Door opened too much - Make sure door stays
closed as much as possible.
Cause Correction
Replace De-icing Heater
Increase the setting of step 8
in Section 3.
Increase the setting of step 7
in Section 3.
Start a de-icing cycle.
Check compressor and re-
place if neccessary.
Check the fan and replace if
neccessary.
Ventilate the room.
Change the location of the
unit. (See section 2-4)
4-2