TROUBLESHOOTING (cont.)

 

 

PROBLEM

PROBABLE CAUSE

REMEDY

Dispense station

Water solenoid

Replace solenoid (24vdc) or check

concentrate only

 

wire connection between water

 

 

valve and main control board.

Dispense station

In rinse position

Rotate knob to dispense position.

water only

NOTE": Water will dispense for 4

 

 

seconds.

 

Dispense starts then stops or "refill"

Main control board

Check for variable dc voltage when

flashes and beeps 5 times.

 

corresponding dispense switch is

 

 

depressed. No dc power - replace

 

 

control board.

 

Dispense motor not running

Check for variable dc voltage at

 

 

motor terminals. Voltage present

 

 

- replace motor.

 

RPM sensor

A) Verify magnet hub is secured

 

 

with screw and star washer to mo-

 

 

tor shaft.

 

 

B) Verify RPM sensor operation.

 

 

RPM input 24vdc signal 0 - 5 vdc

 

 

intervals.

24

38310 010406

 

Page 24
Image 24
Bunn JDF-2N manual Problem Probable Cause Remedy, Concentrate only, Water only

JDF-2N specifications

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