Welcome! Here are the website rules, as well as some tips for using this forum.
If you've found help here, check back in to let us know how everything worked out.
It's a great way to thank those who helped you.
I have a Lennox HP that has worked well until this heating season. When I call for heat, The aux heat comes on at the same time as the compressor even though outside temp is 55 degrees and the demand for heat in the house is only 1 degree above the existing temp in the room. The defrost board shows normal, i.e., the LEDs are blinking together. I suspect a bad defrost board and I cannot find a replacement. It is the DTL-100000-LXA (68J8401).
Also, today, the blower started to run at a slow speed resulting in the compressor tripping on high head pressure. Changed the capacitor with no change in performance.
Any ideas on either issue?