InspectAPedia ®Building & Environmental Inspection, Testing, Diagnosis, Repair, & Problem Prevention Advice |
|
|||||||||||||||||||||||||
| InspectAPedia Home |
| | Air Conditioning |
| | Electrical | | | Indoor Environment |
| | Exteriors | | | Heating | | | Home Inspection |
| | Insulate Ventilate |
| | Interiors | | | Mold Inspect/Test |
| | Plumbing Water Septic |
| | Roofing | | | Structure | | | Contact Us |
| Directory of Professionals to Inspect or Test a Building | ||||||||||||||||||||||||||
|
AIR CONDITIONING CONTROLS & SWITCHES BOILER CONTROLS & SWITCHES ELECTRIC MOTOR OVERLOAD RESET SWITCH FURNACE CONTROLS & SWITCHES OIL BURNERS Reset Switch - Heater Primary Control Reset Switch - electric motors Spill Switches - gas fired heaters Stack Relay - Heater Control Reset Switch WATER PUMP CONTROLS & SWITCHES More Information InspectAPedia Blog - News Updates Air Conditioning & Heat Pumps InspectAPedia Bookstore Electrical Environment Exteriors Heating Home Inspection Insulate Ventilate Interiors Mold Inspect/Test Plumbing Water Septic Roofing Structure Accuracy & Privacy Policies Contact Us |
Here we describe how to find and reset the thermal overload button on an electric motor. The page top photo was taken of of an oil burner electric motor not an air conditioning blower fan motor or pump motor, but you'll see that all of these electric motors look a lot alike. Sometimes the reset button on an electric motor is hard to find, and sometimes there is no reset button!. But this photo shows the red reset button most clearly. In addition to our discussion of the ELECTRIC MOTOR OVERLOAD RESET SWITCH discussed here, If you are looking for the main burner reset button on heating equipment you'll want to see: Aquastat Functions and Cad Cell Relay Switch Flame Sensors (hot water boilers and some water heaters), Stack Relay Switch on older oil fired boilers and furnaces, SPILL SWITCHES (gas fired equipment), and Low Water Cutoff Controls on steam heating systems. © Copyright 2009 Daniel Friedman, All Rights Reserved. Information Accuracy & Bias Pledge is at below-left. Use the links at page left to navigate this document or to go to Other Website Topics. Green links at left show where you are in our document & website. How to Find and Reset a Heating System or Air Conditioning Electric MotorElectric motor overload reset buttons: Once the motor has cooled sufficiently it can be re-started, usually by pushing the popped-out reset switch back down. If the motor turns off again on re-set you should not keep running it as it may be damaged and the system may be unsafe.
Tips for Finding the Motor Reset ButtonFind the electric motor that operates the device that has been shut down. For example on a warm air heating system or central air conditioning system look in the air handler/blower compartment. On the blower motor itself, look for a red or yellow button which is normally flat with the motor surface but which will pop up to show that the motor has been shut off by its internal overload protection circuit. If the installer rotated the motor so that the button is facing away from you and impossible to see, feel around on the bottom and back side of the motor for the button's presence. Especially if the motor's internal protection has tripped, it should be easy to feel the button since it'll be sticking up about 1/2". When and How to Reset the Electric Motor on a Heating Blower, Air Conditioner Blower, or Water Pump When the air conditioner fan or blower motor has cooled sufficiently this button can usually be simply pressed back down to "reset" the switch. If the motor overload
switch won't reset (stay depressed) either the motor is still too hot (wait) or there is another failure that needs diagnosis.
Sometimes the reset button is present but hard to find, depending on the position in which the motor was bolted in place. What the Reset Button Looks Like When it has Not TrippedYou can see that in this picture the button is flush with the motor surface. Sometimes these buttons are hard to find but they are usually present on heating and air conditioning system electric motors for fans and blowers. Use links just below or at the left of each page to navigate this document or to view other topics at this website. Green links show where you are in our document or website. AIR CONDITIONING CONTROLS & SWITCHES ... Technical Reviewers & References
Use links just below or at the left of each page to navigate this document or to view other topics at this website. Green links show where you are in our document or website. | ||||||
|
AIR CONDITIONING CONTROLS & SWITCHES BOILER CONTROLS & SWITCHES ELECTRIC MOTOR OVERLOAD RESET SWITCH FURNACE CONTROLS & SWITCHES OIL BURNERS WATER PUMP CONTROLS & SWITCHES More Information InspectAPedia Blog - News Updates Air Conditioning & Heat Pumps InspectAPedia Bookstore Electrical Environment Exteriors Heating Home Inspection Insulate Ventilate Interiors Mold Inspect/Test Plumbing Water Septic Roofing Structure Accuracy & Privacy Policies Contact Us |
More Information on Building Diagnostic Inspections and Repairs
|