Is there some way to get further diagnostics such as temperature via the raspberry pi for the Hashra? I ask earlier but got no answer and the summer heat is starting to kick in so the issue is going to need addressing asap.
There's no way to do it internally unless you can plunged in a wire temperature sensor or use a thermometer gun like I always do. I live in Malaysia where heat is around 27~34celcius all year round. The hottest point on my miner is around 57celcius which is cool enough. Just make sure you place in a well ventilated room/area, open the windows if you can.