02/20/2026- I arrived on site to find the unit working properly in cool mode but taking a couple attempts to start in heat mode. I found this unit to be very dirty and needing a cleaning( the customer doesn’t want one preformed at this time). I disconnected the power and tested the capacitor, relay, and transformer and found no current issues. The transformer is buzzing and warm but is still functioning. I re-secured many dirty connections and verified that all are secured. I then test the unit and the issue didn’t reoccur for the rest of the time I was on location. I informed the customer that the unit is currently working properly but to contact us if it happens again.