# How to Replace the Aquastat in a Boiler Mate
Boiler Mate brand top-down water heaters are boiler heating systems that include an aquastat part in the top front of the boiler. The aquastat is an electrical panel that includes a bulb, which senses the water temperature in the boiler and helps to maintain a proper temperature set by the user. If your boiler won’t stay at the temperature that you manually set it to, then you should replace the aquastat part, which can be ordered from the Boiler Mate manufacturer or an online retailer.
Things You'll Need
- Phillips screwdriver
Instructions
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1
Turn off the electrical power to your Boiler Mate system at your home’s main circuit breaker.
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2
Remove the screws from the aquastat controller, which is the small control panel on the top of the boiler unit, using a Phillips screwdriver.
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3
Lift the aquatstat controller off of the boiler, then disconnect the wire connection using your hands. Make note of which terminals in the aquastat that the wires connect to. Remove the aquastat controller completely from the unit.
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4
Connect the wires to the new aquastat controller part, to the same terminals as they were connected on the old aquastat.
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5
Reinsert the screws into the aquastat controller, then turn the electrical power back on from your home’s main circuit breaker.
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