Electrician Changed Parts for 2 Days — Weil-McLain Boiler Still Dead | Hidden Short Found

Electrician worked on this boiler for two days… and it was still dead. No heat. No hot water. New homeowners stuck on a Saturday night. In this real emergency service call, I troubleshoot a Weil-McLain CGA gas boiler with an indirect water heater that wouldn’t fire. Multiple parts had already been replaced — including the control board — but something kept killing power. 🔎 What we found? A hidden 24-volt short caused by melted zone valve wiring, blowing transformers and control boards repeatedly. In this video you’ll see: Step-by-step electrical troubleshooting How a short can silently destroy boiler controls Why randomly changing parts costs homeowners thousands Why Nest thermostats + bad wiring can compound problems Real-world diagnostics you won’t see in a classroom 📍 Local Service: Pipe Doctor Home Services, Inc. Residential & Commercial Plumbing, Heating & Cooling 📞 516-348-6300 🌐 https://www.pipedoc.net/request-service/ 👨‍🏭 HVAC PROS & TECHS If you’re tired of sales-driven training and want real diagnostics, this channel is for you. 👉 Become an official ACIQ dealer: https://aciq.com/mikeypipes 🎯 SUPPORT THE MISSION ✅ Limited Edition 2025 Mikey Pipes Poster — $42.50 Delivered Includes stickers, pen, card & magnet 100% of proceeds support Mikey Pipes Philanthropy 💳 PayPal / Zelle: [email protected] 💸 Venmo: @PipeDoctor 💸 CashApp: $mikeypipesny 👍 Like, comment, and subscribe if this helped you 🔔 Turn notifications ON — emergency calls don’t wait ⏱️ CHAPTERS (High Retention) 00:00 Emergency Call – No Heat, No Hot Water 01:45 First Look at Weil-McLain CGA Boiler 04:30 No Voltage Out of Transformer 06:10 Control Board Failure Confirmed 08:55 New Transformer & Board Installed 11:30 Board Dies Again – Something’s Shorted 14:40 Ground & Low Water Cutoff Issue 16:20 Melted Zone Valve Wiring Discovered 18:45 System Restored – Final Observations 20:10 Professional Recommendations #️⃣ HASHTAGS #BoilerRepair #HVACTechnician #NoHeatNoHotWater