There are two access panels on the heater, remove screws to access it. They cover the upper thermostat and element and the bottom covers the bottom thermostat and element. The top thermostat is the main one that has a reset button along with a dial to turn up the heat for the top element. A white plastic knob that you can use a flat head screw driver to turn to adjust. Also you have one on the bottom to turn to adjust the heat on the bottom.
This is how you adjust thermostat's to increase to a hotter setting.
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There are two access panels on the heater, remove screws to access it. They cover the upper thermostat and element and the bottom covers the bottom thermostat and element.
The top thermostat is the main one that has a reset button along with a dial to turn up the heat for the top element. A white plastic knob that you can use a flat head screw driver to turn to adjust.
Also you have one on the bottom to turn to adjust the heat on the bottom.
This is how you adjust thermostat's to increase to a hotter setting.