Looks like the 7 blinking error
Somehow it appears the module is either broken, or it cannot reach the remote service.
Wonder if you can debug azure iothub connectivity from your network?
The Rinnai Touch connection string is “rinnai-iothub.servicebus.windows.net/;SharedAccessKeyName=DefaultListenSharedAccessSignature;SharedAccessKey=3C6d3uh7TIeYM/xfgVOF9kIRX4aQp/RkepWugcu5O4s=”