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HOT SURFACE IGNITOR Training for Gas Furnaces! HSI Types, Operation, Troubleshooting!
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.
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