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My a/c was running fine yesterday, my husband changed the

Customer Question
filter in the unit and...
My a/c was running fine yesterday, my husband changed the filter in the unit and it stopped working. We checked a few things last night with a HVAC tech with no solution. My husband checked for current coming from the 120v and says there is no power going
to the unit. What should we do next?
Submitted: 2 years ago.Category: HVAC
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Answered in 5 minutes by:
9/20/2015
HVAC Technician: urelectrician, Contractor replied 2 years ago
urelectrician
urelectrician, Contractor
Category: HVAC
Satisfied Customers: 3,957
Experience: Certified Construction Manager & Licensed Electrician
Verified

Hello and welcome to Just Answer. My name is ***** ***** I will be happy to assist you with your electrical question.

1) Is the A/C unit plugged into a dedicated wall mount receptacle circuit or is the circuit shared with other connected loads?

2) If a cord & plug connected A/C unit, did you measure for voltage at the circuit breaker and at the wall receptacle?

3) What were the voltage measurements from Hot to Neutral, Hot to Ground and from Neutral to Ground at the receptacle?

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Customer reply replied 2 years ago
This is Rheem unit with condenser outside, no plug or wall receptacle
HVAC Technician: urelectrician, Contractor replied 2 years ago

Thanks for the replies.

1) I've never heard of an exterior condenser that has 120 volts, they are always 240 volts.

2) Did you measure for voltage at the exterior disco switch?

3) What is the model number or provide me with the nameplate rating of the A/C unit?

4) How many amps is the circuit breaker that controls the A/C unit?

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Customer reply replied 2 years ago
No the inside unit has coil like wire connected to a box that reads 115v heater
Customer reply replied 2 years ago
Then there is one brown wire connected to the unit coming from a box 24v t Stat
HVAC Technician: urelectrician, Contractor replied 2 years ago

OK, thanks for the reply.

I will opt out of the question and send it over to one of our HVAC experts and they can better assist you.

No need to reply back to me, as you will be notified once an HVAC expert picks up your question.

Thanks.............Kevin!

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Customer reply replied 2 years ago
Ok thanks
HVAC Technician: Mike G., Master Electrician replied 2 years ago
Mike G.
Mike G., Master Electrician
Category: HVAC
Satisfied Customers: 7,950
Experience: Proven Professional 49 years Experience
Verified

Hi, I'm Mike G and I'll be glad to assist you. I suggest checking the access panel you removed to change the filter. There is usually a cover switch the tells the unit it is sealed.

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Customer reply replied 2 years ago
There is a switch that you can move in and out and hear clicking. There are also three little lights (bulbs), one orange and the other two are green, none of which are lit. If I press the switch in, shouldn't the lights come on?
HVAC Technician: Mike G., Master Electrician replied 2 years ago

Push and hold it for a test. The cover should depress it and hold it.

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Customer reply replied 2 years ago
Correct and it does, but still nothing
HVAC Technician: Mike G., Master Electrician replied 2 years ago

OK, that's as far as I go. You have other issues that the HVAC expert can assist with. Good luck.

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Customer reply replied 2 years ago
ok thanks
HVAC Technician: BillyHvac, Journeyman HVAC Tech replied 2 years ago
BillyHvac
BillyHvac, Journeyman HVAC Tech
Category: HVAC
Satisfied Customers: 22,894
Experience: Endorsed for unlimited heating, cooling, oil burners, boilers, refrigeration, hydronics
Verified

Hello, this is Billy.

Are you at your wits end yet?

Ready to try a couple more items?

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Customer reply replied 2 years ago
Lol, I was earlier, problem solved. The emergency switch was off this whole time! Flipped it on and a/c running fine!
HVAC Technician: BillyHvac, Journeyman HVAC Tech replied 2 years ago

excellent...that was the first place we were going...

I am very glad you have it going....call it a weekend :)

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Customer reply replied 2 years ago
Thanks! You guys are the best!
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BillyHvac
BillyHvac
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