Twice in the last 5 years the wire going to my Herm terminal on my capacitor has overheated to the point of charring and eventually burning off. I've tested amp draw for the compressor and it is withing spec. The capacitor is the correct spec, has been retested and was installed a couple of years ago. It has a 3-2-1 assist installed. Looking at the capacitor the spade terminal are rusty even though each time I've sanded them clean prior to reinstalling the wires. Each time I've reattached using a spade terminal attached to the Herm wire via clamping from my wire stripper. Am I just making a bad connection there?

I just replaced old thermostat on my 2007 Trane TWE065e13fb2 air handler with XL19i outside unit. (5ton 19seer unit). It uses electricity for both cooling and cooling. After installation of new Honeywell T5 thermostat, there is no cold air blow from the vent (i checked compressor working after 5min delay) but it blows hot air or room temperature air. I have 2 stage cooling (variable speed) and 2 stage heat (I guess). I suspect that my W1 and W2 wire connection on T5 are wrong. Should re insert those to W1 to Aux and W2 to E terminals? or any other insights to fix this problem. [b]New Honeywell T5 wiring[/b] [b]Old Trane thermostat wiring[/b] [b]Wiring on furnace[/b]