Our downstairs AC went out last August and our home warranty folks sent out a serviceman to fix it (dual zone heat pump setup). He said it was a bad capacitor & replaced it. Our AC worked again and we were happy.
Now it's winter and I noticed the downstairs wasn't warming very well & the thermostat says "heat 2 pump". The fan unit outside is not running at all, and I don't notice any sounds coming from it when I flip the circuit breaker (the upstairs fan unit is running like I'd expect). I guess the "heat 2 pump" means that the air handler is heating the air with the electric heater strips instead of using the heat pump with the fan unit.
So I opened up the service panel on the fan unit to see if anything looked burnt. I noticed that the repairman zip-tied the new (much smaller) capacitor to the old one and rerouted a couple connections to it, but left the old one mostly hooked up. Either that, or he replaced an old 3-terminal one with 2 dual-terminal ones in such a way as to work the same as the old one? I only suggest that since both capacitors look pretty shiny & new with no bulging. I didn't try to disconnect them to test them with a meter since I don't really know what I'm doing.
The big cap in the back is 35mfd. The little one is 7.5mfd. I forgot to take a pic of how they are hooked together - I can get that if it would help.
I'm going to attach a couple pics in the hope that someone could mention if it looks fishy. I plan on making a service call tomorrow but want to know if I should complain about the current capacitor situation. Or is this a normal way to use two dual-pole caps to replace a dead 3-pole cap?
The last pic is of the unit's label: unit # & serial number if it helps. It's a Carrier brand.