Troubleshooting the Fan Limit Control Switch on a Furnace, Temperature Settings, How it Works! HD

Our Book https://www.acservicetech.com/the-book In this HVACR Troubleshooting Video, I go over how the Fan Limit Control Switch Works on a Gas or Oil Furnace, What temperature to set the 3 Temp Adjustments to, How to identify a problem, and I go over Resistance Reading Checks on the Fan and Limit sides of the control. This Honeywell Combination Control is common on most older gas and oil fired furnaces. Supervision is needed by a licensed HVAC Tech while doing this as Experience and Apprenticeship garners Wisdom and Safety. These Videos are all part of our Training Series on HVACR Service, Installation, Preventative Maintenance, General Knowledge, and Tips. Please comment and ask for videos that you would like to see in the future! We come out with new videos every few days from my job sites, service calls, and the training shop! I hope you enjoy and find them very beneficial! See you next time at ACSERVICETECH Channel! Check out All of the ACSERVICETECH Playlists- https://www.youtube.com/channel/UCOZR-1IqsAer9wzlvFgb4mA/playlists?view_as=public If you want to support the ACSERVICETECH Channel and receive more HVAC content, check out www.Patreon.com/acservicetech ACSERVICETECH is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. You can enter Amazon through this Affiliate Link found here or in the " Discussion" Channel Page Comments http://amzn.to/2aenwTq Prices are the same as usual. (Link has to be clicked on from an ACSERVICETECH YouTube source and not cut and pasted) Here is the Link for the newer UEI DL469 Multimeter- http://amzn.to/2jw4ePJ Here is a link for the Supco Magnet Jumpers http://amzn.to/2gS4h6z Here is the Link for the newer UEI DL479 Multimeter with temp sensor- http://amzn.to/2jtsUbJ Here is the link to the 2 pairs of alligator clips- http://amzn.to/2CtIL5z Here is the link to the Fieldpiece ST4 Dual Temp Meter- http://amzn.to/2wc1ME3 Here is a link to the JB 6 CFM Vacuum Pump http://amzn.to/2nqbvo8 Here is the Link to the Appion Blue 3/8" to 1/4" Vacuum Hose- http://amzn.to/2uYlVyc Here is the Link to the Appion Red 3/8" to 1/4" Vacuum Hose- http://amzn.to/2uYg6Ro Here is the link to the Appion Valve Core Removal Tool- http://amzn.to/2uYr8WL Here is the link to the Yellow Jacket 1/4" by 1/4" heavy duty hose straight- http://amzn.to/2umtcod Here is the link to the CPS Vacuum Micron Gauge- http://amzn.to/2v1nM3O Here is the link to the Supco Vacuum Micron Gauge- http://amzn.to/2v1JRiA Here is a link for RectorSeal Bubble Gas Leak Detector http://amzn.to/2ckWACn Here is a link to the UEI DL389 Multimeter used in the videos- http://amzn.to/2xAdaJf Here is a link to the Air Acetylene Torch setup- http://amzn.to/2aQalsb Here is a link to the 15% Silver Brazing Rods- http://amzn.to/2gVLyLc Here is a link the Nitrogen Regulator http://amzn.to/2bXdR5f H