3 How a Pilot Thermocouple Works How to Test & Diagnose Problematic Standing Pilot Lighting Issues

Welcome to another episode of Mikey Pipes HVAC Training! In this video, we dive deep into one of the most important components of older heating systems — the **thermocouple**. Whether you're a homeowner curious about your water heater, furnace, or boiler, or an HVAC contractor looking to improve your technical skills, this video is for you!

👉 *What is a Thermocouple?*
Learn how this small, copperish wire with a silverish tip plays a crucial role in maintaining the safety and functionality of standing pilot systems on water heaters, furnaces, and boilers. We’ll explain how it creates a small electrical charge when heated by the pilot flame, which keeps the gas valve open.

👨‍🔧 *How to Test a Thermocouple:*
If you're troubleshooting *no heat* or *no hot water* calls, knowing how to test the thermocouple is vital. Watch as Mikey demonstrates using a *Fluke 116* multimeter to measure the millivolts (mV) and ensure your thermocouple is in good working order. We’ll also cover common signs of a failing thermocouple and when to recommend replacement.

⚠️ *Thermocouple Maintenance Tips:*
Keep your heating system safe and efficient by learning how to maintain and properly inspect your thermocouple. Watch out for common issues like corrosion, cracks, and oxidation. If you notice anything unusual, it may be time to replace the thermocouple before it causes bigger issues.

🌟 *Why You Should Watch:*
Get a step-by-step breakdown of thermocouple operation and testing.
Understand how thermocouples work in standing pilot gas valves.
Learn why this is an essential safety device you should never bypass.
Improve your diagnostic and troubleshooting skills for HVAC systems.
Gain knowledge on when and how to recommend thermocouple replacement to customers.

🔧 *For HVAC Contractors and Homeowners:*
Whether you’re working on a furnace, boiler, or water heater, this video will arm you with the knowledge to maintain and troubleshoot standing pilot systems. Plus, Mikey adds some humor to make learning enjoyable!

📈 *Engage with Us!*
If you found this tutorial helpful, make sure to *LIKE**, **COMMENT**, and **SUBSCRIBE**! Share your thoughts, experiences, or questions below in the comments, and stay tuned for more **HVAC tips and tricks* coming your way.

✅ *Don’t forget* to hit the bell icon 🔔 so you never miss a new video! Join the Mikey Pipes family for weekly HVAC educational content!

Stay safe, be well, and we’ll catch you in the next one!

#HVAC #Thermocouple #StandingPilot #WaterHeater #Furnace #Boiler #HVACTechnician #Homeowners #GasValve #HeatingSystem #MikeyPipes**