Johnson Controls T-4000-2642 Cover As an OEM replacement limit

As an OEM replacement limit switch

replacing a fouled or cracked electrode with this genuine Armstrong 44992-001 ignitor is essential for restoring system safety and preventing nuisance lockouts

Key Benefits: Universal Retrofit: Functions as a direct drop-in for the legacy Robertshaw 801 and most major brand electric heat thermostats

Using a multimeter on the DC millivolt setting

It is a direct-fit component for a range of Reznor F-Series models

Johnson Controls T-4000-2642 Cover As an OEM replacement limitJohnson Controls T 4000 2642 Gold Plastic Cover, Horizontal, Includes Thermometer and Setpoint Window, Johnson Controls Labeled