On some Jandy models, AO appears intermittently and heater cycles off and 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

Marginal blower performance, Loose pressure switch tubing, Wind-induced vent pressure changes, Partially blocked vent cap

Safety first: Shut off power before opening the cabinet.

Secure tubing: Ensure the pressure switch tubing is firmly attached at both ends and not leaking.
Check vent cap: Inspect the vent termination for partial blockage or improper cap that could cause pressure fluctuations.
Wind effects: If AO occurs only in high winds, consult installation guidelines for wind baffles or vent relocation.
Blower health: If the blower is older or noisy, consider replacement to restore stable airflow.

Medium 3/5

Blower Motor Assembly

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