I love my heated bathroom floor. One day it suddenly stopped heating. Spoke with a technician to inquire why my heated floor wasn't heating. Thermostat showed numbers but wasn't responding to settings. I was told it could either be the thermostat or the heating element in the floor and a link as well as an instruction sheet were sent to me via email to make this determination. However, both were beyond my limited experience and understanding of electricity and would require an electrician from my end. If an electrician had to be hired to make that determination and it was the thermostat that needed replacement, I'd have to wait to receive the replacement thermostat, then make another appointment with the electrician, thus incurring the cost for two visits from the electrician. After 3 conversations I opted to purchase the thermostat and have an electrician come in one time only, taking the risk that it was the thermostat and not the flooring. It took several interactions with the company before being told that the most likely scenario was a malfunctioning thermostat. I would have preferred having that likelihood communicated from the beginning. As it turned out, it was the thermostat, everything is working fine and I'm still loving my heated bathroom floor.