Why Every Boiler Tech Needs a Current Simulator for Transmitters & Loop Controls - Weekly Boiler Tip

Boiler instrumentation and controls go hand-in-hand — and when something isn’t working, knowing how to troubleshoot the loop matters.

In this video, we break down how a current simulator (current calibrator) helps boiler technicians troubleshoot pressure transmitters, loop controls, and actuated valves in real-world boiler room applications.

This isn’t a simple “110V in / 110V out” scenario. When you’re dealing with 4–20 mA signal loops, the problem could be:

The transmitter

The loop control

The valve or actuator

A current simulator lets you “spoof” the signal, isolate components, and pinpoint what’s actually malfunctioning — saving time, frustration, and downtime.

⏱️ Chapters / Timestamps

00:00 – Boiler instrumentation and why troubleshooting matters
00:17 – Using a vent control to manage excess steam
00:38 – Why transmitters and loop controls complicate troubleshooting
00:52 – What a current simulator does
01:10 – Spoofing signals to isolate system problems
01:24 – Why this tool belongs in every tech’s toolbox

🔧 Who This Video Is For

Boiler technicians

Plant operators

Maintenance managers

Instrumentation techs learning boiler systems

🧯 Important Disclaimer

Ware’s videos are intended for educational and promotional purposes only and do not constitute professional advice. Always consult a licensed contractor and manufacturer specifications before troubleshooting or modifying boiler equipment.

🔗 Learn More

Explore boiler training, service, and tools at wareinc.com
Get parts and instrumentation support at boilerwarehouse.com


© 2025 @wareboilers. All rights reserved. Unauthorized reproduction or distribution of this content is prohibited. Ware Boilers’ videos are intended for promotional purposes only and does not constitute professional advice. Please contact our boiler professionals via https://www.wareinc.com/ with specific questions or repair needs. You should not attempt any boiler repair or modification without first consulting with a licensed contractor and the manufacturer. Ware Boilers does not warrant the accuracy, completeness, or usefulness of information available on this YouTube page. Nothing contained in or provided in any of Ware Boilers’ videos is intended to constitute advice or to serve as a substitute for a licensed contractor’s inspection or manufacturer specifications. Any reliance you place on such information is strictly at your own risk.