Pentair SHURFLO WB6-M3-22-003-SS Manual page 11

Troubleshooting
continued
Symptom
Water leaking from bottom of water filter sump
Water leaking from schrader valve during
pre-charge check
Off taste in all dispensed drinks
Water leaking from around shroud area
(remove shroud for troubleshooting)
Water boost pump will not cycle
Water boost pump short cycles often
SHURFLO WATER BOOST MODULAR FILTRATION SYSTEM INSTALLATION AND OPERATION GUIDE
Probable cause
Water filter o-ring on cartridge failed
O-ring failed between modular filter heads
Failed bladder
Unit improperly stored after being in field use
Contamination in incoming city water supply to system
O-ring failed on inlet or outlet fitting of water boost pump
Water boost pump head assembly leaking
Failed inlet or outlet braided beverage tubing
Purge valve thread assembly improperly sealed or failed
Outlet pressure gauge thread assembly improperly sealed
Outlet pressure gauge damaged
Relief valve failed
Relief valve thread assembly improperly sealed
Internal temperature sensor open - excessive motor
temperature safety
Loss of bladder pre-charge pressure
Loss of bladder pre-charge pressure - failed bladder
Solution
Replace 0-ring on filter cartridge: Kit 94-696-00
Repair / replace fittings: Kit 94-692-00
Replace bladder: 94-697-00 and pre-charge to proper pressure
Sanitize unit
Correct incoming water related concern prior to sanitizing and
putting system back into operation
Replace inlet / outlet fitting: 94-120-00
Replace water boost pump: Model 8025-933-399
Replace tubing assembly:
(inlet manifold 94-690-00)
Repair / replace purge valve: 94-693-00
Remove, reseal and reinstall outlet pressure gauge
Replace outlet pressure gauge: 94-694-00
Replace relief valve: 94-703-00
Remove, reseal and reinstall relief valve
Identify cause of continuous motor cycle (lack of incoming city
water) correct and allow motor temperature to fall into normal
operating range
Pre-charge bladder to proper charge
Replace bladder: 94-697-00 and pre-charge to proper pressure
11