Mark
Thank you for the clear, concise information. I will start studying the schematic to fully understand the areas you speak of. The fan comes off of the Low Voltage Secondary Supply of Transformer T948. I recently noticed that the fan was not running. I removed it and connected it to a 12 VDC power supply and, out of cabinet, it worked. I am assuming that the fan would run all the time. That being the case does that point in any specific direction? Thanks again for the dialog and guidance.
