Siemens Building Technology 357-0004 Stat 326070-701 replacing a fouled or cracked

replacing a fouled or cracked sensor with this OEM Lennox flame sensor eliminates intermittent "no-heat" calls caused by failed flame rectification and ensures equipment operates at peak safety specifications

If the venter motor runs but the burner fails to ignite

the harness should be tested for continuity

What is the difference between direct acting and pilot duty models

If your gas valve displays a 7-flash error code and there are no actual flammable vapors present

Siemens Building Technology 357-0004 Stat 326070-701 replacing a fouled or crackedThe Siemens 357 0004 Limitem is a heavy duty, gradual direct acting pneumatic thermostat designed for precision air temperature control in demanding commercial HVAC air handling units. This liquid filled averaging bulb thermostat features a 15 foot sensing element and a 40 foot capillary tube, providing extensive reach for monitoring across large duct cross sections. Engineered for reliability as a low limit control or primary controller, it operates