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Error Code 03 is reporting a flow error. Verify the pump is not only on and running but
circulating water through the heat pump before proceeding.
Verify the pump is on and water is passing through the
heat pump. Finally, check the pool return to make sure
water is circulating in the pool. IF correct, go to step 5B.
IF incorrect, resolve & retest.
Verify Flow
Step 5A
Step 5B
Verify the flow switch is mounted in the correct
orientation. IF the flow switch is installed properly, go
to 5C. Otherwise, turn off pump, correct orientation,
and retest.
Verify Flow Switch Orientation
5. Error Code: E03
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