Bell & Gossett In-Line Centrifugal Pump Error Codes
The Bell & Gossett in-line centrifugal pumps offer a convenient way to pump water throughout the system efficiently. If your pump isn’t operating as it should, or you notice a code of some sort being displayed on the unit, it’s time to troubleshoot the issue fast. Below, we break down the various Bell & Gossett pump error and alarm codes so you know what’s causing the issue, how to remedy it, and inform your authorized service technician.
This guide is applicable for the e-90 Series of models.
Alarm Codes
Code A03—Derating
Cause: Temperature is too high
Solutions:
- Lower the water temperature
- Lower the room temperature
- Lower the load
Code A05—Data Memory Alarm
Cause: Data memory has been corrupted
Solution:
- Step 1—Reset the default settings using parameter P68 from your owner’s manual.
- Step 2—Wait 10 seconds after the reset.
- Step 3—Restart the pump. If the issue continues, contact an authorized technician.
Code A06—LOW Alarm
Cause: Lack of water in system
Solution: Check the tank’s water level.
Code A15—EEPROM Write Failure
Cause: Damage to data memory
Solution: Stop the pump and keep it off for 5 minutes. Afterwards, restart the pump. If the issue continues, contact an authorized technician.
Code A20—Internal Alarm
Cause: An internal alarm has sounded in the unit.
Solution: Stop the pump and keep it off for 5 minutes. Afterwards, restart the pump. If the issue continues, contact an authorized technician.
Code A30—Multi-Pump Connection Alarm
Cause: Connection to multi-pump is corrupted.
Solutions:
- Check the connection cables for any damage
- Check for any address discrepancies, which could cause the alarm code to appear.
Code A31—Lost Multi-Pump Connection
Cause: Connection to multi-pump is lost
Solution: Check the connection cables for any damage
Error Codes
E01—Internal Error Communication
Cause: Internal communication has been lost
Solution: Stop the pump and keep it off for 5 minutes. Afterwards, restart the pump. If the issue continues, contact an authorized technician.
E02—Motor Overload Error
Causes:
- Motor current is too high
- Current absorbed by the motor is too high
Solution: Stop the pump and keep it off for 5 minutes. Afterwards, restart the pump. If the issue continues, contact an authorized technician.
E03—DC-Bus Overvoltage Error
Causes:
- DC-bus overvoltage
- External conditions
Solutions:
- Check the system configuration
- Check the non-return valves for loose connections or damage
E04—Blocked Rotor
Causes:
- Motor has stalled
- Rotor is out of regular synchronization
- Rotor is blocked
Solutions:
- Check for any blockages
- Stop the pump and keep it off for 5 minutes. Afterwards, restart the pump. If the issue continues, contact an authorized technician.
E05—EEPROM Data Memory Error
Cause: EEPROM data has been corrupted
Solution: Stop the pump and keep it off for 5 minutes. Afterwards, restart the pump. If the issue continues, contact an authorized technician.
E06—Grid Voltage Error
Cause: Voltage supply is out of the operational range
Solution: Check the electrical connections, and contact an authorized service technician if there are any issues found.
E07—Motor Winding Temperature Error
Cause: Motor’s thermal protection has tripped
Solutions:
- Check for any blockages near the rotor and impeller. Remove as needed.
- Check the water and air temperatures
- Stop the pump and keep it off for 5 minutes. Afterwards, restart the pump. If the issue continues, contact an authorized technician.
E08—Power Module Temperature Error
Cause: Frequency converter protection has tripped
Solution: If the issue continues, contact an authorized technician.
E09—Generic Hardware Error
Cause: Hardware error
Solution: Stop the pump and keep it off for 5 minutes. Afterwards, restart the pump. If the issue continues, contact an authorized technician.
E11—LOW Error
Cause: Lack of water in tank
Solution: Check the water level in the tank
E12—Pressure Sensor Error
Cause: Issue with the pressure sensor
Solution: Have the pressure sensor checked and replaced if needed by an authorized service technician
E14—Low Pressure Error
Cause: Pressure is below the minimum threshold
Solution: Check the power supply is properly connected
E15—Loss of Phase Error
Cause: A power supply phase is missing
Solution: Have the power supply checked by an authorized service technician
E30—Multi-Pump Protocol Error
Cause: Multi-pump protocol is incompatible
Solution: Make sure the unit is updated with the latest firmware. If needed, contact an authorized service technician to assist.
E44—External Analogue Reference Error
Cause: External analogue signal is missing or out
Solution: Contact an authorized service technician to assist
For more helpful information about your unit, like how to look up a serial number, take a look through our collection of online Bell & Gossett manuals and diagrams.