Bunn S/N 0005473 & UP manual TROUBLESHOOTING cont PROBLEM, Probable Cause, Remedy

TROUBLESHOOTING (cont.)

PROBLEM

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

PROBABLE CAUSE

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

REMEDY

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.

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