Contact technical support for assistance with replacement of components. Swap components from the operational PackEye to the non-working PackEye. Change the power supply module, then the indicator unit, then the FHT681.
Refer to the following procedures for information on how to change out components.
DET-HHD-THR-PAK-CM03, PackEye Power Supply Replacement.
DET-HHD-THR-PAK-CM06, PackEye FHT681 Replacement.