U2
Evolution Spas
Pump 2 Control or Relay Fault
Display shows U2, pump 2 does not operate or behaves erratically.
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Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
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Possible Causes
Failed pump 2 motor, Loose wiring to pump 2, Stuck pump 2 relay on control board, Incorrect configuration for second pump
How to Fix / Troubleshooting
Safety: Shut off power at the GFCI breaker before working on pump wiring.
- Verify wiring: Confirm pump 2 is wired to the correct terminals and that all connections are tight.
- Check pump operation: If qualified, bench-test pump 2 with proper voltage to see if it runs.
- Inspect control board: Look for damage near the pump 2 relay.
If pump 2 is good but does not run from the control pack, the control board likely needs replacement by a technician.
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Repair Difficulty
Hard
4/5
Required Part
Pump 2 (Jet Pump)
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