Xylem Inc.
8200 N. Austin Avenue
Morton Grove, Illinois 60053
Phone: (847) 966-3700
Fax: (847) 965-8379
www.xyleminc.com/brands/bellgossett
Bell & Gossett is a trademark of Xylem Inc. or one of its subsidiaries.
© 2012 Xylem, Inc. 6-71-075-110A July 2012
Symptom
LED Sequence Code
LED Sequence
Code Error
Possible Causes
Corrective Action*
Intermittent Operation
1x Long, 4x Short
1x Long, 3x Short, 1x Long
1x Long, 2x Short, 1x Long, 1x Short
1X Long, 2x Short, 2x Long
1x Long, 1x Short, 1x Long, 2x Short
1x Long, 1x Short, 1x Long, 1x Short, 1x Long
Run Error #1
Run Error #2
Run Error #3
Run Error #4
Run Error #5
Run Error #6
1. Improperly Wired
2. Foreign object in impeller and housing
3. Overheated pump electronics
1. Check Motor wiring diagram
2. Disassemble pump, remove object, and clean
motor separating wall and impeller
3. Disconnect the power to the pump and let
the pump cooled down to ambient room
temperature. Check the fluid’s temperature for
proper setting.
Pump will not prime
1x Long, 1x Short, 2x Long, 1x Short
Dry-Run Error
1 . Leak, Obstruction, or kink in suction line
2 . Suction line closed
3. Pump is worn
1. Repair as necessary.
2. Open, then reset the pump by unplugging power
to the pump
3. Replace parts.
Little or no discharge
Solid Light
No Error
1. Housing not filled with water
2. Suction piping too small
3. Total head too high
4. Impeller plugged
1. Properly prime housing
2. Increase to pump inlet size or one size larger
3. Reduce discharge head
4. Disassemble pump and clean motor separating
wall and impeller
Noisy pump operation
Solid Light
No Error
1. Air trapped in housing
2. Rotor bearing worn
3. Debris in housing
1. Check pump prime, also turn pump on and off
several times to bump air pocket out of pump
2. Replace rotor assembly
3. Dissemble pump and remove debris
No Operation
No Light
Not Powered
1. Blown Fuse or open circuit breaker
2. Loose or broken wiring
1. Replace fuse or circuit breaker after reason for
overload has been corrected
2. Tighten connections, repair wiring
Trouble Shooting Chart
LED Indicator: Solid green LED indicates pump is powered and functioning properly. If flashing green LED please follow the
Corrective Actions for the errors below.
1
6
5
4
3
2
7
vario Pump Curves
auto Pump Curve
vario Pump Curve
Setting 1
Setting 2
Setting 3
Setting 4
Setting 5
Setting 6
Setting 7
1
2
3
4
5
6
7
* If the LED sequence code continues after all corrective actions have been verified and applied, please contact your local B&G
representative for assistance and report the run error sequence when the pump is returned for a warranty replacement.
Setting 1
Setting 2
Setting 3
Setting 4
Setting 5
Setting 6
Setting 7
1
2
3
4
5
6
7
