Heat pump heater shows E08; unit may not respond to commands.

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

Damaged communication cable, Loose connectors, Faulty display board, Faulty main control board

Safety first: Turn off power before unplugging any cables.

Check comms cable: Inspect the cable between the user interface and main PCB for damage or rodent chewing. Replace if compromised.
Reseat connectors: Unplug and firmly reinsert both ends of the communication cable.
Inspect for moisture: Dry any condensation or water around the control area.

If E08 remains, either the display or main board may be defective and should be tested by a service technician.

Hard 4/5

AstralPool Display Communication Cable

Check Price on Amazon

We may earn a commission from links on this page.