This person got through one extremely cold winter before a friend gave them a helpful suggestion. That’s when they realized that there was a piece inside the thermostat that needed to be removed in order for the thermostat to work! They must have felt pretty silly after they pulled off the piece and the thermostat kicked into action.
Perhaps the funniest part is that this person had thought that their thermostat had “hardly worked” all through the winter months. But it turns out that their thermostat never worked at all! Let’s hope they learned their lesson and never had to go through another cold winter again.