Air Conditioning - AC Blows main fuses

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retgi
07-20-07, 05:55 PM
To make a long story short this AC unit (Trane 12 Seer/ 10 years old)was blowing the main fuses that are connected on the box on the outside of the house. A service tech come out and after taking the unit apart discovered a scorched/brittle wire coming out of the compressor. So he quickly quoted me $2300 for a new unit. I said no thanks and paid him for his time and called a friend's Dad who is in the business and he will do it next week for $1500. I can wait since the unit runs my upstars. Much better... In the mean time I started to look where the scorched wire came from and it is broken off from what the schematic describes as the "sump heater". All other wires/wiring in compressor's wiring box just above it look ok, not brittle or anything. I took off this "sump heater" which is about the size of a ball point pen and has two wires coming off of it. Apparently the wires were shorted causing the main fuses to blow. Question: can this part be purchased and if so, do you think there's a possibility that my unit would operate after replacing this part? thanks

retgi
07-20-07, 08:23 PM
Fixed it myself. Disconnected the burned wires, replaced main fuses and she started right up and has been running well now for three hours. Called friend's dad and he said it should work fine without this "heater". If anyone knows otherwise then please let me know. thanks....
Ed Imeduc
07-20-07, 09:50 PM
Hey its summer No sweat just let it run . A lot of units dont have a heater on them. If you want you can buy one and put it on some time. Ask for a crankcase heater. You dont need it if you dont try and run the AC when its cold outside is all. Its on all the time so the freon dont turn to a liquid in it when its cold out is all . If it blowes the fuse again Id Ohm out the compressor then, before I got a new one

retgi
07-22-07, 08:00 PM
Hey its summer No sweat just let it run . A lot of units dont have a heater on them. If you want you can buy one and put it on some time. Ask for a crankcase heater. You dont need it if you dont try and run the AC when its cold outside is all. Its on all the time so the freon dont turn to a liquid in it when its cold out is all . If it blowes the fuse again Id Ohm out the compressor then, before I got a new one

Thanks for the info....