Pahlen Supply Voltage Fluctuation / Drop

Pahlén pool pump speed or flow changes when other large electrical loads in the house turn on

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.

Possible Causes

Shared circuit with heavy loads, Undersized supply cable, Weak utility supply, Loose main connections

Safety first: Electrical panel work must be done by a qualified electrician.

Dedicated circuit: Ensure the Pahlén pump is on a dedicated circuit sized according to its nameplate rating.
Check cable size: Upgrade undersized cables to reduce voltage drop, especially on long runs.
Inspect main connections: Have an electrician tighten and verify main panel and subpanel connections.
Monitor voltage: Use a meter or data logger to confirm that voltage remains within acceptable limits during pump operation.

Hard 4/5

Power Supply Cable

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