HOT SURFACE IGNITOR Training for Gas Furnaces! HSI Types, Operation, Troubleshooting!
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- Опубліковано 17 бер 2022
- In this HVAC Training Video, I Show How to Test if a HSI is Bad without having to take it out for a Visual Inspection and Accidentally Breaking it. I cover Silicon Nitride and Silicon Carbide HSI's. I explain and show types, installation location, testing, and the sequence of operation for a gas furnace in heating mode. I show Silicon Nitride and Silicon Carbide HSI's. Supervision is needed by a licensed HVACR Tech while performing tasks as Experience and Apprenticeship garners Wisdom and Safety.
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Information in this video is intended for educational purposes only. Any work related to the topics in this video should be performed by licensed technicians or by apprentices under the supervision of licensed technicians. AC Service Tech LLC is not responsible for any possible damages or injuries caused by the use or misuse of any information provided.
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I’m still learning loved your videos. I broke an igniter I learned the hard way . Just graduated from HVAC school and I’m learning more from your videos than school.
Excellent, just an excellent video...I see in comments they are used in ovens and such...True, and if the amperage draw and the Resistance as they get weaker is not enough the gas valve will not open...The igniter will glow but it still will not open the gas valve...Most require 2.5 - 3amps on an amp probe to open the safety valve on an oven...Thanks for a great video.
When I worked for an LP gas company we used to check amperage. I forget the specifics but the flat and round operated at different amperage.
Thanks, your video’s really help grasp the whole concept from the the text book to actual imagery and functionality
I'm not an HVAC tech but I am interested in your troubleshooting videos and guides and bought your AC Service Tech e-book because it is some of the best documentation I have seen on furnace and AC maintenance and troubleshooting. Thanks for doing this video.
Absolutely on the money with all of your insights. I was having a problem with an igniter that only worked once. It turned out that the angle on it was the issue. It needed to be slightly angled and little closer to the burners to ignite. Saved me lots of money and additional frustrations. Great video! 👍👍👍
Important to note that the resistance with these igniters changes with heat. May start out at 20-50Ω but that resistance multiplies ~10X when powered for current regulation and longevity.
Your videos are great man, thanks for all the content.
Thanks so much for this video. It is a super clear explanation of how an ignitor works and how to troubleshoot it. My furnace was not making heat and I was on the verge of looking for an HVAC company to come out and fix it but that would have undoubtedly cost me hundreds of dollars and days of delay. This video showed me that my ignitor was bad and I was able to fix it myself. I used a voltmeter to confirm that AC was reaching the ignitor and that the resistance of the ignitor was zero. My furnace is a Trane and I was only getting a max of about 3.5 volts AC before it stepped down to 1.2 volts. The repair was actually quite simple, just replace the ignitor. Thanks again for this excellent video!!! You're a rock star!!!
Another great video. Thanks again , always a subscriber
A AC clamp on meter Worked for the Oven I was working on. The valve was labeled with expected current range.
These tips not only are useful to HVAC but also to dryers and ovens.
Thank you. Very interesting video. Great tips.
depends on manufacturers specs, some carriers say they should be replaced if the resistance is over 90 ohms. The 98 ohm should be replaced. Be proactive!
Very good information. Thanks 😊
great job Craig
Ty so much for ur educational video
Thank you again for all that you do for the industry!
Craig these videos are amazing, I’ve been in this field 16 years and there’s always stuff to learn, not a day goes by when I’m not trying to better myself and learn something new! Thanks for these videos bud!! I knew most if not all of this information but I just wanted to thank you! How about spark ignition type systems do you have a video on those, such as Rheem/Rudd furnaces?
If you zoom in on the one in the middle that is bad when he applies power, you can see tiny arcs across the crack. Those heat the crack, which likely expands enough to cause the ignitor to start flowing enough current to glow. As with anything, those arc will eventually erode (pit) the crack causing complete failure.