
HPB
TM
Series
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Basic Troubleshooting Continued
Troubleshooting Chart
Symptom
Possible Cause
Action
Low or no pressure
boost
Incorrect feed pump
speed or direction
- Check feed pump VFD for proper speed
setting (if equipped)
- Check feed pump power supply frequency
(50 or 60 Hz)
- Check rotational direction of feed pump
motor
Restriction in inlet or
discharge pipes
- Check feed pump discharge pressure
- Check position of all auxiliary valve
HPB internal issues
- Refer to the
HPB-2800 Overhaul Manual
.
Booster leaks
Pipe joints
- Inspect pipe joints for insufficient sealing
- Inspect pump for damaged O-rings
Booster vibration or
noise
Booster cavitation
- Check brine discharge pressure during op
-
eration
- Check for excessive flow rate
Air in casing
- Purge air from all piping
Design parameters
- Unit not designed for operating conditions