Generac 0D5240 N/O Exercise Switch For Older Air Cooled & Others. Used in the 4000 series units and some others. If these fail they can cause the exercise timer to not set properly and the red LED lights will just flash. Can be checked with a quality digital continuity meter. Note that these are not the same as the Liquid Cooled Exercise switches!
Generac replacement parts will also usually fit the following Generac branded generators: Honeywell, Guardian, Siemens, Carrier, Watchdog, Centurion, & Bryant.
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