E19
Aquaflow
Overvoltage Protection
Display shows E19 and pump stops when attempting high speed
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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
Supply voltage above specification, Incorrect tap on transformer (if used), Utility overvoltage condition
How to Fix / Troubleshooting
Safety first: Isolate power and use appropriate PPE when measuring voltage.
- Measure supply voltage: With a multimeter, confirm that the line voltage at the Aquaflow terminals does not exceed the nameplate rating.
- Check transformer settings: If a step-up or step-down transformer is used, verify that it is wired for the correct primary and secondary voltages.
- Consult utility: If line voltage is consistently high, contact your power utility or an electrician to correct the supply.
Do not operate the pump with sustained overvoltage, as it can damage the motor and electronics.
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Repair Difficulty
Hard
4/5
Required Part
Aquaflow control board assembly
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