contactor help - http://www.hvacmechanic.com/ Forums

Original message

solsmith

75.53.126.47

"contactor help" , posted Wed 23 Apr 23:09

Recently, our outside compressor had a problem; it wouldn't shut off even when the system was turned off inside. I learned that there was a problem with the contactor. I scraped the corrosion clean and it worked again--for a day. Ever since then, I've had to clean in every day.

I need to get a new one, but I don't know what to get. I can't make out the words on the sticker. It's a Honeywell, and it say something like "52243A" and "42-24044-01" and "24V 60HZ" but I can't find anything matching those numbers online.

Any help? Is there a general one that would work? I know I can install it myself. We live in Houston and have to get this thing going!

Sol

Replies:

Houston204

98.196.66.53

"Re(1):contactor help" , posted Wed 23 Apr 23:18

1.5 pole 30 amp contactor with a 24 volt coil.

A 1.5 pole 40 amp contactor might be better but you would have to cut the Y connectoer off of your existing leads.

If you have a crankcase heater wired to opposite sides of 1 leg of your contactor avoid a 2 pole contactor. (Found with many Carrier units)

"Tip of the Day" Remember to remove power first.

Houston204

98.196.66.53

"Re(2):contactor help" , posted Wed 23 Apr 23:49:

Post your make and model. My example is a common contactor. It would not work on a 2 speed or 3 phase unit.

"Tip of the Day" Remember to remove power first.

[this message was edited by Houston204 on Wed 23 Apr 23:50]

solsmith

75.53.122.180

"Re(3):contactor help" , posted Fri 25 Apr 20:57

I got the part and installed it...only on the new part, the T1 and T2 were opposite from my old part. I flipped it on...nothing.

I put everything back the way it was. Now the INSIDE unit won't turn on at all. It is not the breaker box. Is there anything I can do short of calling a technician? This is just terrible.

The outside one turns on fine when I press down on the contactor coil.

Thanks.

Sol

Houston204

98.196.66.53

"Re(4):contactor help" , posted Fri 25 Apr 21:13

Check the low voltage fuse in your indoor unit.

"Tip of the Day" Remember to remove power first.

solsmith

75.53.122.180

"Re(5):contactor help" , posted Fri 25 Apr 21:24

Where can I find this?

Sol

Houston204

98.196.66.53

"Re(6):contactor help" , posted Fri 25 Apr 22:02

Tough to tell without the make and model. Here are some examples...

Carrier furnace

Trane fancoil

"Tip of the Day" Remember to remove power first.

solsmith

75.53.122.180

"Re(7):contactor help" , posted Fri 25 Apr 23:02

it's a Ruud Silhouette II. I think I pulled out the fuse--a small, purple blade fuse labeled "E." It looks blown.

Could that be it?

Sol

solsmith

75.53.122.180

"Re(8):contactor help" , posted Fri 25 Apr 23:06

Ha! I see. It's labeled "3" not E. It's a 3 amp fuse. Could this be the only problem on the indoor unit? If so, I could buy a few of them until I get this thing right.

Sol

Houston204

98.196.66.53

"Re(9):contactor help" , posted Fri 25 Apr 23:08

3 bucks a pack at Autozone.

"Tip of the Day" Remember to remove power first.

solsmith

75.53.122.180

"Re(10):contactor help" , posted Sat 26 Apr 12:45

Did it!

It's working. Wow. Only $32 all said and done. What would it have cost me to get someone to do it for me, I wonder?

Thanks a million for all of your help.

Sol

Houston204

98.196.66.53

"Re(2):Re(10):contactor help" , posted Sat 26 Apr 15:35

$178 but I wouldn't have popped a fuse:)

"Tip of the Day" Remember to remove power first.