I am troubleshooting a DX cool/ Hot water heat system with a ZN510 Board.
The service call is no heat. The fan runs continously and will not shut off using the built in timer. I can shut the fan off and on using the on/off switch on the stat. I can cycle the unit between occupied and unoccupied mode on the stat. All Functions work when the test button on the board is used. Any ideas. Do I need to access the programing on the board. If so not being an owner of rover software and never using it ,is it worth purchasing. I can from Trane. Does it require training to use.