Bunn JDF-2N - Manual (Page 23)

23 38310 010406
TROUBLESHOOTING (cont.)
Dispense station not working "refill"
LED and beep code.
A) 3-Beep - Dispense/Rinse sens-
ing fault.
B) 4-Beep - Dispense/Rinse knob
mis-positioned.
Refill LED not extinguishing
All stations dispense concentrate
only
1. Bottle adapter switch mem-
brane
A) Dispense/Rinse switch mem-
brane shorted out simultaneously.
B) Dispense/Rinse switch mem-
brane open simultaneously.
2. Concentrate lockout (Dipswitch
#2) feature activated - locks out
station when refill light is ON.
3. Dispense touchpad.
Bottle adapter refill
Main water supply
Internal ON/OFF water valve
Frozen bath
Check for moisture at 3-pin con-
nector and clean. Apply electrical
insulating compound or replace
defective switch membrane.
Check knob for mis-position or re-
place defective switch membrane.
Check for proper orientation of
the Dispense/Rinse membrane
switch.
Hint: Good bottle adapter switch
membrane will sound the beeper
when you rotate the knob between
dispense and rinse to indicate closed
position.
Refill product or turn OFF concen-
trate lockout feature (Dipswitch
#2)
See Schematics and check corre-
sponding dispense station button
for continuity - replace touchpad.
Check wire terminals going to the
probes for proper connection or
refill probes need to be cleaned
and rinsed.
NOTE: Door switch resets the "Refill"
LEDs.
Check for ON position.
Check for ON position.
A) Compressor relay/contacts
shorted - replace relay.
B) Recirculating pump - replace or
check for kinked flex line.
PROBLEM PROBABLE CAUSE REMEDY