PUMP I=0 EVER

What does 1052 mean?

The pump motor controller (codes 1052, 2052, 3052) has detected that the pump current is zero even when operation is commanded. This indicates a lack of current flow to the pump motor. The specific lift reaction is controller dependent.

• Open circuit in pump motor wiring (e.g., broken cable, loose terminal).
• Pump motor winding fault (e.g., open circuit in winding).
• Failure of the pump motor controller's output stage (e.g., MOSFET failure).

Click steps to track your progress.

1. 1

   Verify the incoming supply voltage to the pump motor controller input terminals against nominal specifications.

2. 2

   Inspect all motor power cables and their connections between the pump motor controller and the pump motor for damage or looseness.

3. 3

   Verify the proper closure and operation of the pump motor contactor or solid-state relay when pump operation is commanded.

4. 4

   With power isolated, measure the resistance of the pump motor windings to check for continuity and open circuits.

5. 5

   Check pump motor controller parameters for correct motor type, nominal current, and drive enable configurations.