Bobrick B-850 Troubleshooting Manual

Designer Series Counter-Mounted Automatic, Top Fill Bulk Liquid Soap Dispenser
Step 1: To determine cause: Unplug unit and reconnect unit, look for Green LED light and sound of motor. Activate soap dispenser continually five times.
If motor running and LED stops flashing when hand is in the activation zone.
Likely Cause
Soap may be too viscous (i.e.
Soap may be too thick).
If unit requires multiple (more
than 5) activations to dispense
liquid. Duckbill inside
Duckbill Housing missing or
not installed properly.
No change.
If motor not running and LED stops flashing when hand is in the activation zone.
Likely Cause
Gear jamming.
Flashing red LED. Indicates
sensor obstruction.
No change.
If motor not running and no LED light.
Likely Cause
No power to the unit
No change.
Likely Cause
Bottle Assembly is not tight
over the Stem.
Leaking from bottom of the
Bottle.
No change.
Trouble Shooting Guide
for Bobrick B-850, B-852, B-855, B-856 or B-858
Action
Ensure that soap meets specified
viscosity range. Viscosity range of 100
to 19,000cP (cP = centerpoise).
Adjust portion control knob to get
desired amount of soap.
Replace Duckbill Housing.
All steps above completed.
Action
Check for dried soap. Purge system.
Ensure all obstructions are clear from
sensor path.
All steps above completed.
Action
Check A/C adapter connection.
All steps above completed.
Action
Unscrew Stem Locking Nut.
1. Disconnect fiber optic cables and
power supply from the Bottom
Housing.
2. Locate leak if from bottom of Bottom
Housing.
All steps above completed.
Instruction
Replace with soap that is within the recommended viscosity range.
Contact Bobrick Customer Service.
Contact Bobrick Customer Service.
Instruction
Open Cover, pour warm water, and then purge by pressing Automatic
System Flush Button.
Refer to mounting template 824-307.
Contact Bobrick Customer Service.
Instruction
If LED lights up then follow the steps listed under "If motor not
running and LED stops flashing when hand is in the activation
zone".
Contact Bobrick Customer Service.
Instruction
While pushing upwards on the Bottle, thread the Stem Locking Nut
down onto the Bottle Cap Threads.
Hold the Stem and lightly rotate the Bottle back and forth to be sure
there is no movement.
Ensure that the bottom of the Bottle is properly tightened.
Replace with Bottom Housing Assembly.
Replacement
Part/Kit Needed
n/a
824-322
n/a
Replacement
Part/Kit Needed
n/a
n/a
n/a
Replacement
Part/Kit Needed
n/a
n/a
Replacement
Part/Kit Needed
n/a
n/a
858-250