Jandy Blower Fails to Start

Heater display is on but blower never starts when heat is called.

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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 blower motor, Faulty blower relay on control board, Loose blower harness, Seized blower wheel

How to Fix / Troubleshooting

Safety first: Turn off power before touching the blower.

  • Listen for clicks: When calling for heat, listen for a relay click on the board. No click may indicate a control issue.
  • Inspect blower: Remove the front panel and attempt to spin the blower wheel by hand. If it is stiff or seized, replace the blower assembly.
  • Check harness: Ensure the blower motor plug is fully seated and wires are not damaged.
  • Professional testing: A technician should measure voltage at the blower terminals during a call for heat. If voltage is present and the blower does not run, replace the blower. If no voltage, replace or repair the control board.
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Repair Difficulty

Hard 4/5

Required Part

Blower Motor Assembly
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