Firmware and controller in a heat pump: what to check before an update

Firmware upgrades can fix known issues or improve operation, but should not be done without preparation.

Before the update

Record the software version, basic parameters, alarm history, and any special installation settings.

Compatibility

Confirm that the new version is suitable for the specific model and hardware revision.

After the update

Verify that parameters have been correctly restored and that all basic modes are functioning properly.