CONTACT US

MENUMENU
  • HOME
  • COMPANY
    • MADE IN USA
    • OUR TEAMS
      • Leadership
        • Ben Crawford
        • Crystal Bronstetter
      • Sales
        • Max Allen
        • Jeremy Crawford
      • Production
        • John Hall
      • Engineering
      • THE ETI TEAM
  • PRODUCTS
    • CONTROLLERS
      • Snow/Ice Melt
        • APS-3C
        • APS-4C
        • SC-40C
        • GF Pro
        • PD Pro
        • EUR-5A
        • LCD-8
      • Heat Trace
        • FPT 130
        • GPT 130
        • GPT 230
    • SENSORS
      • Aerial
        • ETI Snow Owl
        • LCD 8
      • Pavement
        • HSC-24 Controller
        • SIT-6E
      • Gutter
        • GIT-1 Gutter Ice Sensor
    • DEHYDRATOR
      • Automatic
        • ADH NETCOM
        • ADH NETCOM NEMA
      • Manual
        • EDH-4
        • EDH-5
      • Passive/Static
        • RCD Passive Dehydrators
      • Dehydrator Accessories
        • ASM-1 Automated Air Distribution Manifold
        • RCM-1 and RCM-2
  • RESOURCES
    • NEWS
    • CAREER
      • General Employment Application
    • SUPPORT
      • Return Merchandise Authorization (RMA) Request Form
      • Manuals, Installation Guides, Data Sheets
      • FAQ
        • ETI FAQ’S LIBRARY
      • ETI Webinar Library
      • ETI White Paper Library
      • Service, Warranty and Return Policy
      • Online Certification Index
      • MIB Files
      • Software
      • Conflict Minerals Policy Statement
      • Application Notes
      • Terms of Use | Privacy Policy
  • SUPPORT
    • Product Support
    • Sales Support
MENUMENU
  • HOME
  • COMPANY
    • MADE IN USA
    • OUR TEAMS
      • Leadership
        • Ben Crawford
        • Crystal Bronstetter
      • Sales
        • Max Allen
        • Jeremy Crawford
      • Production
        • John Hall
      • Engineering
      • THE ETI TEAM
  • PRODUCTS
    • CONTROLLERS
      • Snow/Ice Melt
        • APS-3C
        • APS-4C
        • SC-40C
        • GF Pro
        • PD Pro
        • EUR-5A
        • LCD-8
      • Heat Trace
        • FPT 130
        • GPT 130
        • GPT 230
    • SENSORS
      • Aerial
        • ETI Snow Owl
        • LCD 8
      • Pavement
        • HSC-24 Controller
        • SIT-6E
      • Gutter
        • GIT-1 Gutter Ice Sensor
    • DEHYDRATOR
      • Automatic
        • ADH NETCOM
        • ADH NETCOM NEMA
      • Manual
        • EDH-4
        • EDH-5
      • Passive/Static
        • RCD Passive Dehydrators
      • Dehydrator Accessories
        • ASM-1 Automated Air Distribution Manifold
        • RCM-1 and RCM-2
  • RESOURCES
    • NEWS
    • CAREER
      • General Employment Application
    • SUPPORT
      • Return Merchandise Authorization (RMA) Request Form
      • Manuals, Installation Guides, Data Sheets
      • FAQ
        • ETI FAQ’S LIBRARY
      • ETI Webinar Library
      • ETI White Paper Library
      • Service, Warranty and Return Policy
      • Online Certification Index
      • MIB Files
      • Software
      • Conflict Minerals Policy Statement
      • Application Notes
      • Terms of Use | Privacy Policy
  • SUPPORT
    • Product Support
    • Sales Support

Why is my heater light flashing?

by ETI Staff | Aug 2, 2011 | Frequently Asked Questions

A flashing heater light indicates a missing or broken High Temperature Limit sensor. This sensor is required. The sensor is not polarized and must be connected to pins 1 and 2. Refer to figure 17 in the manual.

What is the difference between the APS 277 single phase unit and the 277/480 three phase unit?

by ETI Staff | Aug 2, 2011 | Frequently Asked Questions

The difference is the step down transformer that provides the power for the internal circuitry. On the APS 277 single phase the transformer is 277 VAC to 24 VAC and you will note that its primary winding is connected to the top and middle poles on the contactor. On...

Recent Posts

  • ADH NETCOM SOFTWARE, VERSION 2.21
  • ETI Network appoints Eric Parks as new Director of Engineering
  • Engineering Technician – Service
  • ADH NETCOM SOFTWARE, VERSION 2.20
  • JEREMY CRAWFORD NAMED ETI’S STRATEGIC PLANNING MANAGER
ETI Logo
1850 N Sheridan Street
South Bend, IN 46628
 

SALES DEPARTMENT

(800) 234-4239
(574) 233-1202

PROUD MEMBER OF WTA

JOIN US ON SOCIAL MEDIA

ETI LinkedIN ETI Facebook ETI Twitter ETI Instagram

SUPPORT

• Manuals & Intallation Guides
• RMA Request Form
• Terms of Use | Privacy Policy
Designed by ETI | Copyright © 2025 ETI - All rights reserved. TERMS OF USE | PRIVACY