2022 3.5t attic horizontal foam insulation hp. System functional upon arrival. Claim was at some point on 5/24/25 the compressor was not on and the temperature increased in the home. Homeowner has a son in from out of town that "did something" to the tstat yesterday and it started working. Son was asleep upon arrival and I didn't get a chance to talk to him, claim that the son is in HVAC in California. My refrigerant charge was within tolerance. No error codes on tstat or circuit board. TESP was 0.4/0.5" WC. DeltaT was 16°. Filter had been replaced in April of 2025. The 45 run capacitor was just above manufacturer lowest tolerance (still within range although showing signs of weakening). Start capacitor was functional. Heat rejection off the compressor was acceptable. 80° ambient. I expressed to the homeowner that I could not replicate the issue and that all systems were functional.