Bunn JDF-2S - Manual (Page 24)

24
TROUBLESHOOTING (cont.)
Unit is not working
Difficulty brixing and/or weak bev-
erage
Difficulty brixing and/or weak bev-
erage
Difficulty brixing bag-in-box
1. Step-down transformer.
2. Main control board.
1. Product viscosity or too cold.
2. Low water pressure.
3. High water pressure.
4. Dispense valve adjustment set-
ting.
5. Brix ratio.
1. Pump tubing.
2. Use of portable water pump.
Vacuum leak
Check for 120/24 or 230/24 vac. If no
24vac reading, replace step-down
transformer.
If 24 vac present and no LED’s lit,
replace control board..
Thorough thaw of product before
use (35° - 40°)
Maintain 20 psi or higher and a
minimum flow rate of 3 fl oz/sec.
Over 100 psi, install a pressure
regulator and set to 50 psi.
A) Perform 3 second water dispense
test. Factory setting is 1.0 oz/sec.
Acceptable water flow rate is .-0.8
to 1.5 oz/sec depending on the mix
ratio (4+1).
B) Adjust water to proper mix ratio.
Once water is set, adjust motor
speed to achieve brix %.
Check for proper brix ratio per prod-
uct using Total Dispense method
and or refractometer method.
Inspect, clean, or replace tubing
and pump rotor/rollers for ease of
rotation.
A) Follow plumbing requirements
for pressure and flow rate.
B) Source another portable pump
or water supply that meets require-
ments.
Inspect all lines and connections
from bag-in-box connector to bottle
adapter assembly.
PROBLEM PROBABLE CAUSE REMEDY
44744 032811