Step 7 · Install the New Thermostat

This is the step people usually slow down on. Go finger-tight first, then a quarter turn. No rush — replay the clip whenever it helps.

Take the new thermostat and align it with the mounting clips on the tank. Press it firmly into place, ensuring the flat back of the thermostat makes solid, flush contact with the tank's surface. This is critical for accurate temperature sensing. Referring to the photo you took earlier, connect each wire to its correct screw terminal on the new thermostat. Use a screwdriver to tighten the screws for a secure connection, but do not overtighten, as this could strip the threads or damage the component.