AstralPool Excessive Frost / Defrost Failure

Heat pump heater ices up excessively on the outdoor coil and stops heating.

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

Defrost sensor misreading, Low airflow across coil, Low refrigerant charge, Defrost control fault

Safety first: Turn off power before working near the fan and coil.

Clear coil: Turn the unit off and allow ice to melt naturally. Do not chip ice with sharp tools.
Improve airflow: Ensure at least 600 mm clearance around the unit and remove any obstructions.
Check fan operation: Confirm the fan runs at full speed when the unit is on.

If icing recurs quickly, a technician should check the defrost sensor, control logic, and refrigerant charge.

Hard 4/5

AstralPool Defrost Sensor

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