Help with A/C requested

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Old 05-06-14, 06:06 PM
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Help with A/C requested

In December, we had a new Carrier furnace installed. It worked fine all season. We went to turn the A/C on for the first time today. It doesn't work. The blower on the furnace doesn't come on, the a/c compressor doesn't come on, nothing happened at all. The A/C was working fine all last season.

We have checked the breaker. We turned the heat up and it is working. Can anyone help?

Thanks!
 
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Old 05-06-14, 06:17 PM
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Sounds like they didn't wire the AC correctly when they installed the new furnace.
 
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Old 05-06-14, 06:22 PM
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That's what we were thinking. I am trying to exhaust my other options before calling, because if it isn't that they will charge for a service call and I'm short right now. Thanks!
 
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Old 05-06-14, 06:34 PM
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Welcome to the forums.

I was going to ask you to check the FAN ON mode but you said the heat is still working.

I couldn't see any service charge if it was installed less then six months ago.
 
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Old 05-06-14, 06:45 PM
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I'm not sure I trust the contractor, sadly. They wanted to replace the A/C when they replaced the furnace but we couldn't afford to do both. Their reason for wanting to replace it was "it is old and will need it soon." I don't want to sound cynical, but I'm wondering if something was done deliberately so they could come back and replace the A/C.
 
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Old 05-06-14, 08:47 PM
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The wiring that runs the air conditioner comes thru the furnace. If the A/C isn't working they should fix it no charge or let you know exactly what the problem is.
 
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Old 05-06-14, 09:24 PM
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Sounds like control / thermostat issue. Check wiring at tstat. It should be color coded G is green wire which is power to fan relay, y is yellow wire this is power to outside contractor / ac, r is red wire this is 24 volts from transformer power, w is white wire to gas valve be it gas heat or sequencers if electric heat. These wires run from tstat to terminal block inside furnace electrical component area. Wires should match up as described to tstat. Visually inspect all wires at tstat and inside furnace. If all in tack call another local carrier contractor. If they are carrier authorized dealer they are obligated to stand by warranty. Unit has 1 year labor 5 years parts and 10 years on compressor. Gather model and serial number off either paperwork or data plate on inside wall of furnace. Give contractor this data and schedule service call.
 
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Old 05-06-14, 10:46 PM
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wwb....The air conditioner was an existing unit.... therefore it isn't covered by the Carrier furnace warranty. The warranty on this issue needs to come from installing dealer. His men/company is responsible for the A/C wiring that they connected.
 
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Old 05-07-14, 05:44 AM
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Just be upfront with them when you call, tell them you think the wire's are not connected correctly. Most AC company's will come back out at no cost to you.
 
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Old 05-07-14, 06:55 AM
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Thanks all! We decided to replace the thermostat (which is about all we know how to do) and it is now working. All the replies were appreciated.
 
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