IBD 4500/4600/LCD
26
TROUBLE
CAUSE
REMEDY
5. LIgHT EMITTINg DIODES (LEDS)
Light Emitting Diodes (LEDs) are provided on the PC Board to aid in troubleshooting electrical
difficulties. Referring to the wiring diagram included in this manual (also affixed to the electrical box
cover), the following information in Section 5 can be obtained from the LEDs.
5.1 LED D3 -
Light is on when the ice dispense switch is activated. If the chute is depressed and
the light does not turn on, check to see if the wire harness is connected or if the dispense switch
is defective.
5.2 LED D4 -
Light is used on units with lid interlock switches. On the 4500 series ice-beverage
dispenser, this light should always be lit. If it is not, check the Lid Interlock Jumper (black wire with
4 pin white connector).
5.3 LED D5 -
Light is on when +5VDC is present at the circuit board. It should be lit whenever the
unit is connected to a power source. If the light is off, check to see if the internal circuit breaker on
the transformer was tripped. If it has tripped, it can be reset by depressing the switch on the top of
the transformer.
5.4 LED D6 -
This light is on when +32VDC is present at the circuit board. It should be lit whenever
the unit is connected to a power source. If the light is off, check to see if the internal circuit breaker
on the transformer has tripped. If it tripped, it can be reset by depressing the switch on the top of
the transformer.
4.24
BIB pump fails to restart
after bag replacement.
A. BIB connector not on tightly.
B. BIB connector is stopped up.
C. Kinks in syrup line.
A. Tighten BIB connector.
B. Clean out or replace BIB
connector.
C. Straighten or replace line.
4.25
BIB pump fails to stop
when dispensing valve is
closed.
A. Leak in discharge line or fittings.
B. Empty BIB.
C. Air leak on inlet line or bag con-
nector.
A. Repair or replace discharge line.
B. Replace BIB.
C. Repair or replace.
4.26
Low or no carbonation.
A. Low or no CO
2
.
B. Low water pressure.
C. Worn or defective carbonator
pump.
D. Backflow preventer not allowing
water to flow.
E. Probe malfunctioning.
F. PCB malfunctioning.
A. Check CO2 supply.
Adjust CO2 pressure to 70 PSI.
B. Need water booster kit.
C. Replace carbonator pump.
D. Replace backflow preventer,
noting the flow direction arrow
from pump to coldplate.
E. Replace probe.
F. Replace PCB.
CONTINUED ON NEXT PAGE
Summary of Contents for 4400 Series
Page 30: ...7 2 FINAL ASSEMBLY pOST MIX IBD AND ICE DISpENSER 30 IBD 4500 4600 LCD...
Page 32: ...IBD 4500 4600 LCD 32 7 3 LCD UNIT FINAL ASSEMBLY pOST MIX IBD AND ICE DISpENSER...
Page 34: ...IBD 4500 4600 LCD 34 7 4 4600 NO COLD pLATE UNIT FINAL ASSEMBLY pOST MIX IBD AND ICE DISpENSER...
Page 41: ...7 8 WIRINg DIAgRAM 115v 60HZ 41 OPERATIONS AND SERVICE MANUAL PN 28 0255 11...
Page 42: ...IBD 4500 4600 LCD 42 7 9 WIRINg DIAgRAM 230v 50 60HZ...
Page 45: ...OPERATIONS AND SERVICE MANUAL PN 28 0255 11 7 13 IBD 22 COUNTER CUTOUT 45...
Page 46: ...7 14 IBD 30 COUNTER CUTOUT 46 IBD 4500 4600 LCD...