I have a Trane PTHC1501GAA A/C Heat Pump. The unit stopped working after several years of trouble-free service. Now and then, in the winter (now) the unit will start up, run for a few seconds and stop. I believe this is the freeze prevention circuit. The unit is operated by the local controls only. I am unable to run in heating or cooling codes and surprisingly, not even the fan will run when selected. 240 VAC power is present, board fuse is good (28V present). I'm an electrican and don't mind messing with it electrically but the controls are unfamiliar to me. I have seen the the Goodman has a recall on this unit for a limit switch failure. I have checked my serial number (A96**) and found that it is affected by the recall. How do I get this service? Thanks!!
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