Purchase the HH12ZB190 Bryant Carrier Furnace Limit Switch from Us and Save!
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- The Bryant, Carrier furnace limit switch part number HH12ZB190 is brand new and comes packed in a Bryant Carrier Factory Authorized parts box.
- The HH12ZB190 replaces old Bryant Carrier part numbers P331-2205, HH12ZA189, and HH12ZA193.
- The HH12ZB190 has a 3″ insertion depth. The HH12ZB190 opens at 190 degrees Fahrenheit and closes at 150 degrees F.
- FYI: A furnace limit is a safety device that is used to cut the gas burners off if the furnace over-heats. If your furnace is going off on limit you might have an airflow problem like a dirty filter, dirty blower, slow blower motor (might need a new capacitor) stopped up evaporator coil or too much gas pressure. All of these can cause the furnace to overheat and go off on limit. Many times when the furnace goes off on limit the fan blower will continuously blow because the furnace control board senses that the furnace has overheated and needs to cool down. The only way to get the blower to cut off is to turn off the furnace with the power switch. You can test a limit with a voltmeter to see if it is open or not. On most limits, you should get 24 volts from each of the two wires on the limit to a good ground. The HH12ZB190 limit opens the circuit when the furnace reaches a temperature of 190 degrees F.
- We have a really good YouTube Video made by AC Service Tech that shows how to quickly test limits and rollout switches. Many thanks to AC Service Tech for making this excellent video!
- Please send us your furnace’s product number if you would like for us to use our Bryant Carrier program to look up parts and see what the recommended limit or part is for your furnace. Our email address is: email@example.com
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