The float switch a safety device that shuts the system down when condensation overflows into the drain pan can fail for a number of reasons according to smith.
Hvac drain safety switch.
There are very simple switches that just clip onto the edge of primary or secondary drain pans like the rectorseal safe t switch ss3 shown above.
Products drain safety switches drain safety switches explained no one ever thinks of the air conditioning unit being a potential hazard when it comes to water and the damage that water can do to your home.
Drain safety switches are necessary to save you from water damage to your home a drain safety switch is often not considered but should be used as a precaution.
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It shuts my ac system off.
Ac acfloatswitch amazon floatswitch how to install and connect ac float switch rectarseal ss2 in this video i show how to install ac float switch.
Drain safety switches fort worth hvac services.
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Little giant 14940157 acs 5 condensate overflow safety switch.
What it does it gives your ac system the ability to detect if it has a clogged drain and if the switch detects a clogged drain scenario it immediately shuts the system off.
Introducing the float switch a float switch is essentaially an electronic water sensor for your hvac system.
Hvac units generate condensation when cooling.
At the heart of the switch is a durable yet precise magnetic reed switch.
If the system is installed horizontally the float switch should be installed on the emergency drain pan located underneath the air handler in the attic or suspended in the garage.
As water level in the auxiliary or main drain pipe rises due to a clogged air conditioning condensate drain the switch shuts off the system thus preventing water from overflowing and causing damage to doors walls and ceilings.
You can install an ac safety switch yourself with the right tool or you can easily have one installed by a professional.
Water dripping through the ceiling and an air handler sitting in a drain pan full of water directly above it is more common than you think says christian smith an hvac contractor.
When the primary drain overfills it begins leaking into the secondary pan below and a pan sitch like the ss3 will open when the water levels rise.
The best way to remove the water is with a shop vacuum.
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Rectorseal 83226 ez trap 226.
The water in the emergency pan will have to be removed to reset the switch.