Error code
Cause
Solution
E08
Inverter thermal protection trip Check installation con-
ditions and ambient
air temperature.
E09
Hardware error
Restart the pump.
E10*
Dry run
Check for system leak-
age or fill the system.
E11**
Loss of phase
Check power supply
* For very low motor RPM, dry run condition cannot be properly detect-
ed.
** Applies to 3-Phase pumps only
8.4 Alarm codes (Orange LED)
Alarm code
Cause
Solution
A01
Fluid sensor malfunction
Switch off the pump for 5
minutes and then power
on. If the problem persists,
contact local B&G repre-
sentative.
A02
High temperature of the
fluid
Check water temperature
value
A03
Automatic speed reduction
to prevent inverter over-
heating
Check installation condi-
tions and rectify 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 repre-
sentative.
A06
External temperature
probe malfunction
Check the probe and the
connection to the pump
A07
External pressure sensor
malfunction
Check the sensor and the
connection to the pump
A08
Cooling fan failure (Only
on 2 HP and larger models)
Check for the presence of
foreign 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
lost
If both pumps show the
A12 alarm, check the con-
nection between the
pumps. If one of the pump
is switched off or shows an-
other error code, check the
section 8.1 and 8.2 to find
the problem
A20
Internal alarm
Switch off the pump for 5
minutes and then power
on. If the problem persists,
contact local B&G repre-
sentative.
A31
Sensor P1 failure
Check pressure sensor in-
stallation and wiring con-
nections
A32
Sensor P2 failure
Check pressure sensor in-
stallation and wiring con-
nections
A33
Sensors P1 and P2 failure
Check pressure sensor in-
stallation and wiring con-
nections
8.5 Faults, causes, and remedies
The pump does not start
Cause
Remedy
No power.
Check the power supply and ensure that
it is properly terminated to the pump
power.
Tripped circuit breaker or
ground-fault protection de-
vice or the circuit breaker.
Reset power supply circuit breaker and
determine cause for overload.
The pump starts but the thermal protection is triggered after a short
time
Cause
Remedy
Incorrect wiring size or circuit break-
er rating not suitable for motor cur-
rent.
Check and replace the compo-
nents as necessary.
Thermal overload protection due to
excessive input.
Check the pump working con-
ditions.
Missing a phase in the power supply. Verify continuity and ensure
proper wiring connections.
The pump is noisy
Cause
Remedy
Not thoroughly vented.
Switch off the pump and after 30 seconds
switch on again to restart the automatic
air-venting procedure.
Cavitation due to insuffi-
cient suction pressure.
Increase the system suction pressure
within the admissible range.
Foreign objects in pump.
Clean the system.
Worn out bearing
Replace pump.
9 Other Relevant Documentation or
Manuals
9.1 Embedded Software and Driver Software
License Agreement
With the purchase of the product, the terms and conditions of the li-
cense for the software embedded on the product are considered ac-
cepted. For more information see license condition on www.bellgos-
sett.com
FCC Statement — USA only (Federal Communications Commission)
This device complies with Part 15 of the FCC Rules. Operation is sub-
ject to the following two conditions:
1. this device may not cause harmful interference and
2. this device must accept any interference received, including inter-
ference that may cause undesirable operation.
This equipment has been tested and found to comply with the limits for
a Class B digital device, pursuant to Part 15 of the FCC Rules. These
limits are designed to provide reasonable protection against harmful
interference in a residential installation. This equipment generates,
uses and can radiate radio frequency energy and, if not installed and
used in accordance with the instructions, may cause harmful interfer-
ence to radio communications. However, there is no guarantee that in-
terference will not occur in a particular installation. If this equipment
does cause harmful interference to radio or television reception, which
can be determined by turning the equipment off and on, the user is en-
couraged to try to correct the interference by one or more of the fol-
lowing measures:
9 Other Relevant Documentation or Manuals
14
ecocirc
®
XL INSTRUCTION MANUAL
