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6. Maintenance / Troubleshooting
It is advisable to keep a record of the periodic checks of the equipment, where data such as pump
consumption, discharge pressure when the valve is closed, record of alarms, abnormal noises, repairs
carried out, etc. should be noted.
In boosters with VFD, these have a record of alarms detected, which can be consulted periodically for
information purposes or even to find out the type of fault in the event that the booster stops. Depending
on the origin of the alarm, the alarm may be automatically reset or require manual resetting.
If an unreported anomaly is detected in the VFD or in On-off boosters without an alarm log, it can be
checked if it is one of the following, where a brief guide is given to determine the possible causes:
Description
The booster is unresponsive
The booster starts up on its own,
without water consumption.
Booster starts up too often
Insufficient or unstable flow or pressure
Vibrations, abnormal noises
Leaks from the mechanical seal
Blocked pumps
Excessive overheating of motors
Possible causes
- Check power supply voltage
- Minimum level float faulty
- No water in the suction tank
- An alarm has been registered in the VFD
- Pressure switch settings altered
- Faulty pressure switches
- Incorrect pressure transducer reading
- Pressure switch settings altered
- Lack of air in the storage tank
- Water leaks in the installation
- Suction valve partially closed
- Partially closed discharge valve
- Air in the system
- The required flow rate or pressure is higher than that provided by the
booster
- Incorrect motor speed
- Incorrect direction of motor rotation
- Incorrect power supply voltage
- Incorrect programming of VFD
- Suction valve partially closed
- Partially closed discharge valve
- Air in the system
- Misaligned pumps
- Poorly seated base
- Damaged bearings
- Dry running
- Air in the system
- Impurities in the water
- Dry running
- Suction of solid elements
- Very high flow rate
- Bad motor connection
- Incorrect voltage
-EN/16-
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