Trane ACONT900AC43UA - Main Limit Switch

GF - I 1
Main Limit Switch
Introduction........................................................................................................................................ 2
Electrical circuit ................................................................................................................................. 2
Troubleshooting ................................................................................................................................ 3
Testing main limit operation ............................................................................................................ 3
Electrical check of main limit switch............................................................................................... 3
Causes of main limit opening during furnace operation.................................................................... 4
Communicating Gas Furnaces
Section I