Troubleshooting - SHURflo Brix Series Manual

TROUBLESHOOTING

When the BRIX pump system is properly installed and maintained it can continually deliver quality drinks
with trouble-free operation. However, during "real world" operation various conditions may occur within
the facility that affects the systems performance. Listed below are various situations that may affect a
correctly installed system:
I. PUMP WILL NOT CYCLE:
• Verify there is adequate water pressure (30-50 psi.[2-3.4 bar]) at water inlet fitting.
• Verify that the dispenser valve operation (switch/solenoid), passages and lines are unrestricted. Flush
and sanitize pump and outlet lines from pump fittings to the dispenser if restricted.
• Check to see if the pump has gone into "vacuum shut-off" (B-I-B only), although B-I-B container is full.
Check for plugged or non-opening Q.C.D. fitting, or kinked or restricted inlet tubing. Flush and sanitize
pump and outlet lines from pump fittings to the dispenser if restricted.
II. NO CONCENTRATE (PUMP CYCLES) / IMPROPER BRIX:
• Start by checking the items in part I. above.
• Verify that the Q.C.D. passage is opening completely when installed on the B-I-B connector. If
concentrate is supplied from a tank, verify that the vent is open.
• Inspect for vacuum leaks at the concentrate inlet side. Carefully look for air bubbles at Q.C.D. or
fittings while the pump is cycling.
• Determine if there was air packaged with the concentrate when the bags where filled. Stand the box up
on end and pull the connector up, allowing air to rise up to the bag connector. Install a Q.C.D. and
engage it on the bag connector opening the passage. Slowly press the Q.C.D. back down, expelling
the air until concentrate appears, release the Q.C.D. closing the connector. This is referred to as
"burping" the bag.
• Pump stroke should be even (time) in both directions of travel. If not even, remove concentrate valves
(inlet/outlet) and inspect for debris or improper closing that interferes with their operation. (See "Valve
Inspection" section)
III. PUMP CYCLES INTERMITTENTLY/ WILL NOT SHUT-OFF/ DRIPS:
• If the pump continues to cycle after B-I-B has emptied, verify that there are no vacuum leaks.
Determine if the concentrate bag has an excessive (more than 1 cubic inch [16.4 cc]) amount of air.
The pump will continue to ratio the air until "shut-off" vacuum (14-18 in/Hg. [48-61 kPa.]) is obtained.
To verify that the vacuum shut-off is operating, allow the pump to operate. Pinch the inlet line off. This
will create high vacuum causing the pump to stop operation.
• If concentrate drips from the (post-mix) dispenser, the problem may be concentrate particulates
trapped under the piston seals allowing pressurized water to enter the concentrate chamber. Perform
the sanitizing and flush procedure to the pump, which may flush the debris from under the seal. If the
problem continues exchange the BRIX pump.
NOTE: If the concentrate B-I-B has been moved above the pump, head pressure from the B-I-B may be
substantial enough to cause the dispenser to drip.
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