Product Overview

Electronic Drive Manual
11
5.2 Fault and error codes
(Red LED)
Error Cause Solution
code
E01 Internal communication Restart the pump
1
lost
E02 High motor current Restart the pump
1
E03 DC Bus overvoltage Indicates excessive
power through the
pump. Conrm
system setup, verify
correct position and
operation of check
valves.
E04 Motor stall Restart the pump
1
E05 Data memory corrupted Restart the pump
1
E06 Voltage supply out of Check the electrical
operating range system voltage and
wiring connection.
E07 Motor thermal protection Check the presence
trip of foreign material
around impeller and
rotor that cause
overload. Check
installation conditions
and temperature of
the water and
ambient air. Wait until
the motor is cooled.
If the error persists
try to restart
the pump
1
.
E08 Inverter thermal protection Check installation
trip conditions and
ambient air
temperature.
E09 Hardware error Restart the pump.
E10 Dry run Check for system
leakage or ll the
system.
5.3 Alarm codes (Orange LED)
Alarm Cause Solution
code
A01 Fluid sensor malfunction Switch off the pump
for 5 minutes and
then power on. If the
problem persists,
contact local B&G
representative.
A02 High temperature of the Check water
uid temperature value
A03 Automatic speed reduction Check installation
to prevent inverter conditions and rectify
overheating status of the system
A05 Data memory corrupted Switch off the pump
for 5 minutes and
then power on. If the
problem persists,
contact local B&G
representative.
A06 External temperature Check the probe and
probe malfunction the connection to the
pump
A07 External pressure sensor Check the sensor
malfunction and the connection to
the pump
A08 Cooling fan failure (Only Check for the
on 2 HP and larger presence of foreign
models) bodies which could
lock the fan rotation.
Switch off the pump
for 5 minutes and
then power on. If the
problem persists,
contact service.
A12 2–pump communication If both pumps show
lost the A12 alarm, check
the connection
between the pumps.
If one of the pumps is
switched off or shows
another error code,
check section 5.1 to
nd the problem.
A20 Internal alarm Switch off the pump
for 5 minutes and
then power on. If the
problem persists,
contact local B&G
representative.
Diagnostic Codes
1
Switch off the power for 5 minutes and then power on. If the problem persists, contact service.