Nvent NUHEAT floor thermostat 21704 (Near Spring Ridge and 144)

Programmable floor heating thermostat

Replaced (high cost) with an identical unit, although the unit was indicating full function without errors.

When i replaced, I found that the wiring was rigid and pushing against connectors causing them to separate which likely was the only problem - see photos of lugs on one pair pushed out

To be safety conservative and without a way to 100% verify a fix if I simply re-landed the lugs, I replaced - someone may be able to easily fix and save significant dollars - unbelievable how much these cost

No knowledge if re-landing the lugs will in fact fix or recommended, but seems likely, would recommend testing before enclosing in a wall (which is what I could not do)

Advise when you can pickup - porch