Bobrick B-850 User manual

Trouble Shooting Guide
for Bobrick B-850, B-852, B-855, B-856 or B-858
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.
Unit Not Dispensing
If motor running and LED stops flashing when hand is in the activation zone.
Likely Cause Action Instruction Replacement
Part/Kit Needed
Soap may be too viscous (i.e.
Soap may be too thick).
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 with soap that is within the recommended viscosity range. n/a
If unit requires multiple (more
than 5) activations to dispense
liquid. Duckbill inside
Duckbill Housing missing or
not installed properly.
Replace Duckbill Housing. Contact Bobrick Customer Service. 824-322
No change. All steps above completed. Contact Bobrick Customer Service. n/a
If motor not running and LED stops flashing when hand is in the activation zone.
Likely Cause Action Instruction Replacement
Part/Kit Needed
Gear jamming. Check for dried soap. Purge system. Open Cover, pour warm water, and then purge by pressing Automatic
System Flush Button.
n/a
Flashing red LED. Indicates
sensor obstruction.
Ensure all obstructions are clear from
sensor path.
Refer to mounting template 82 4 -307. n/a
No change. All steps above completed. Contact Bobrick Customer Service. n/a
If motor not running and no LED light.
Likely Cause Action Instruction Replacement
Part/Kit Needed
No power to the unit Check A/C adapter connection. 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”.
n/a
No change. All steps above completed. Contact Bobrick Customer Service. n/a
Unit Leaking
Likely Cause Action Instruction Replacement
Part/Kit Needed
Bottle Assembly is not tight
over the Stem.
Unscrew Stem Locking Nut. 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.
n/a
Leaking from bottom of the
Bottle.
1. Disconnect fiber optic cables and
power supply from the Bottom
Housing.
2. Locate leak if from bottom of Bottom
Housing.
Ensure that the bottom of the Bottle is properly tightened. n/a
No change. All steps above completed. Replace with Bottom Housing Assembly. 858-250

Unit Diagram:
Item Description
1 Top Assembly with Spout, Door and Stem
2 LED Light Pipe
3 Liquid Nozzle Tip
4 Fiber Optic Insert with Sensor Lenses
5 Rubber Counter Gasket
6 Wave Washer
7 Mounting Nut
8 Stem Mounting Nut
9 Duckbill Housing
10 Bottom Housing Assembly
(includes Soap Bottle)
11 (3) Fiber Optic Cables for Sensor and LED
Light Pipe
12 Fiber Optic Connector Tip Assembly
13 Fiber Optic Nut
14 Portion Control Knob
15 Automatic System Flush Button
16 Key Hole
17 BobKey
18 Fiber Optic Cable Cover
19 A/C Adapter Kit with U.S. Plug,
Order Part No. 3974-57 (for UK, Europe
and Australia, order part no. 3974-55)
5
6
18
16
9
11
8
7
13
12
1
10
17
19
2
3
4
15
14

Replacement Parts List
Description Part #
A/C Adapter 3974-57
A/C Adapter with International Assortment Plug Kit (U. K.,
Europe, Australia)
3974-55
Mack Gasket Kit (To secure Top Assembly under the counter due
to irregular counter surface)
824-167
External A/C Multi Adapter Kit 824-201
Nozzle Tip Replacement Kit Liquid 824-210
Duckbill Housing 824-322
Installation Hardware Packet (Includes Wave Washer, Counter
Gasket, Mounting Nut, BobKey, Stem Mounting Nut)
824-443
Top Housing Assembly Liquid, Polished Brass* 850-225
Top Housing Assembly Liquid, Matte Black* 852-225
Top Housing Assembly Liquid, Brushed Nickel* 855-225
Top Housing Assembly Liquid, Polished Nickel* 856-225
Top Housing Assembly Liquid, Polished Chrome* 858-225
Bottom Housing Assembly Liquid 858-250
Recommended Liquid Soaps
MAINTEX EZ Wash
Entral Pink Deluxe Soap
GOJO®Lotion Hand Cleaner
Softsoap®Moisturizing Hand Soap
Dial®Basics HypoAllergenic Liquid Hand Soap
Genlabs Strike Bac®Antibacterial Handsoap
CARROLL ULTREX Antimicrobial Luxury Hand Soap
Recommended soaps are for reference only and do not constitute an endorsement of named
manufacturer(s). All registrations and trademarks are the sole property of manufacturer.
In the United States: BOBRICK WASHROOM EQUIPMENT, INC.
New York: 200 Commerce Drive, Clifton Park, NY 12065-1350 • Tel: [phone] • Fax: [phone]
Los Angeles: 6901 Tujunga Ave, North Hollywood, CA 91605-6213 • Tel: [phone] • Fax: [phone]
or email [e-mail]
In Canada: BOBRICK WASHROOM EQUIPMENT COMPANY
45 Rolark Drive, Scarborough, Ontario M1R 3B1 • Eastern Canada: Tel: [phone] • Fax: [phone]
• Western Canada: Tel: [phone] • Fax: [phone] or email [e-mail]
© 2019 by Bobrick Washroom Equipment, Inc.
Form No. TSG-B-850 Revised 08/09/19
*Top Housing Assemblies include Installation Hardware Packet and Duckbill Housing