Here’s what worked for me to fix HEMv1 ludicrous numbers:
https://raw.githubusercontent.com/ethayer/AEON-HEM-v1/master/AEON%20HEM%20v1.groovy
I added this line to the config function:
zwave.configurationV1.configurationSet(parameterNumber: 255, size: 4, scaledConfigurationValue: 1).format(),
What does it do? It sets all parameters to the factory default. Seems like after upgrading or downgrading the firmware, some parameters become… wrong or missing. This fixed it for me.
##Note if you have this problem on HEMv2:
Change size:4 to size:1, so that the line reads like this:
zwave.configurationV1.configurationSet(parameterNumber: 255, size: 1, scaledConfigurationValue: 1).format(),