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Too much heat, "I can't stop it".
I have a resident who has too much heat. The t-stat is off and they say it is running through the baseboards. We changed t-stat, zone valve and added a check valve at the end of the running loop.
It is in a tri level building, lower levels have have two zones while the upper level has one with two loops. The return is shared. We tried to explain that it may be the heat from the boiler room and the piping in the building making it warmer than the set temperature of the t-stat. Of course it is not running when we are there, Murph's Law.
Any suggestions? (No, I'm not going to "stay over" to wait for it to happen.)