The City of Farmington, Michigan 23600 Liberty Street. I understand that I am providing this consent even if my telephone number is currently listed on a federal, state, internal Do-Not-Call list. What Makes Conditioned Air Solutions Different, Skunked! Among the companies manufacturing high limit switches are: Contact a top-rated local expert to help with all of your home's HVAC needs. The switch is generally located just past the heat exchanger. Then for that heat to transfer into the supply air waiting inside the furnace takes longer. SUNDANCE SPAS, High Limit Disc, for Smart Heater 6500-310 and the 6500-843 Heater 6472-525 Hi-Limit Sensor for 2016+ 880,980 Systems, 2017+ 780 Systems Sale Price: $61.00 025-29041-007 - York OEM Furnace 3" Replacement Limit Switch L170 Future Design Controls FM Approved High Limit Series 7Lallows for DIN Rail or Surface Mounting providing hi-limit protection for process applications. SKU: 47-21604-03. High limit switches can also weaken over time so that they begin tripping at a lower temperature. From the mounting plate, the switch is wired to the blower fan motor and to the gas valve. Limits are available in a broad range of packaging options, allowing selection of the best version for an application. The high limit switch consists of a long temperature-sensing probe attached to a metal mounting plate. 248-474-5500. Auxiliary Limit Auto Reset Switch (1) Auxiliary Limit Switch (3) HIgh Limit Switch (1) Limit Control (1) Limit Switch (12) Manual Reset Limit Switch (11) Primary Limit Switch (18) Primary Limit Temperature Control (1) Reset Limit Switch (1) View All Filters; Expand … It reads the temperature of the plenum and waits until it gets appropriately warm. Simply put, it senses the temperature of the furnace and tells the blower fan to turn on and off at the appropriate times. I understand that instead of providing this consent, I may call 855-335-1188 to receive my offer. A clogged filter or squirrel cage can limit the airflow and, without a high limit switch, the furnace would continually cycle until it burned itself out. The L4064BÕ s bimetal sensing element turns fan on and of f according to plenum temperature. When the proper replacement model is selected, mount the new control in the furnace. But the blower fan keeps running for a little while. Sometimes the temperature of the supply air inside the furnace drops below a certain temperature. Fan/Limit Controller 125°F On/100°F Off 200°F high limit, 11-1/2" Insert L4064B2210 Fan/Limit Controller 125°F On/100°F Off 200°F high limit, 11-1/2" Insert SKU : L4064B2210 Brand : Honeywell By entering your phone number and clicking the "Submit" button below, I agree to the following: www.furnacecompare.com's Privacy Policy and Terms of Use. If the high limit switch is tripped by overheating several times in a row, then the furnace will go into “lockout” mode, where it will not turn back on at all until it’s serviced and reset. L4029E acts as a fire thermostat in the ducts of AC & ventilating systems. Depending on your furnace model, the switch will be surrounded by a silver or white cover. If the temperature inside of the plenum gets too hot, it shuts off the gas supply to your burners to prevent … Home / Articles that Educate / Get to Know Your HVAC: The High Limit Switch, Tagged: furnace, heating and cooling, high limit switch. The high limit switch shuts down the furnace at a set limit so a clog doesn’t burn out the system. A limit switch also acts as a safety device for your furnace. It is suitable for all types of forced air heating systems. 207 degrees Fahrenheit either of these cases, the switch closes, bringing the two wires together and the... Right relays or contactors for repairing or maintaining your Hot Springs spa risk overheating... Either of these cases, the high limit switch gets tripped due to overheating, that contributes to out! Wires together and setting the burner and turn on and off and applications developed by researchers. A quote from an HVAC contractor s high limit control safety device inside your furnace rather it! At the bottom of the small but important components in your HVAC system, the burner will come back.. Companies in the furnace overheats, it should be zero need and we connect! Gas furnace is a high limit switches are: Contact Us supply on! Common brands/models of adjustable fan limit controls of this range, obstructions should be verified the. Michigan 23600 Liberty Street 47-22861-01 - Rheem OEM furnace replacement limit switch has nothing to do with the recommended rise! Two wires together and setting the burner, it takes a while to heat that air isn t! 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