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I just replaced my thermostat but i didn't shut off the power

i just replaced my thermostat but i didn't shut off the power first. the fan is working only now and the AC isn't onJA: I'll do all I can to help. Tell me a bit more about what's going on so we can help you best.Customer: i have a retail store and i needed to disconnect the thermostat and re-install it. i didn't shut the power off first (mistakenly). I re-installed the thermostat using the same wire configuration but the wires may have touched during this stage. The blower (fan) is working but the AC is clearly not because the air isn't cool.JA: Sometimes HVAC issues that that you think will be really complicated end up being easy to fix. The HVAC Technician I'm going to connect you with knows all the tricks and shortcuts. Is there anything else important you think the HVAC Technician should know?Customer: it's a central heat and AC unit for a retail store. Electric. The thermostat is hard wired and also has a backup batteryJA: OK. Got it. I'm sending you to a secure page on JustAnswer so you can place the $5 fully-refundable deposit now. While you're filling out that form, I'll tell the HVAC Technician about your situation and then connect you two.

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Brian HVAC Guy

HVAC/R Consultant

High School

 
1,316 satisfied customers
Got an old central heat and air conditioning unit model

Got an old central heat and air conditioning unit model GDA100NDA SERIAL #917310. Trying to find where to oil the fan bearings. Fan makes a LOT OF NOISE.

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2,716 satisfied customers
We have a BAXI LUNA HT 380 installed in our some in NH (part

We have a BAXI LUNA HT 380 installed in our some in NH (part time there and NJ). When it was installed we were told no annual maintenance was required. I find this hard to believe. Didn't see anything that suggested what would be needed..... or who the recommended technician would be.JA: I'll do all I can to help. Is there anything else the HVAC Technician should be aware of?Customer: We are having no issues. We love the heat and efficiency. $1000 to heat a house in NH in many sub-degree days.... not shabby. Oh yes, hot water base board heat!JA: OK. Got it. I'm sending you to a secure page on JustAnswer so you can place the $5 fully-refundable deposit now. While you're filling out that form, I'll tell the HVAC Technician about your situation and then connect you two.

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Rick

Owner

 
22,948 satisfied customers
25)the effects of small carbon particles inside the

25)the effects of small carbon particles inside the refregeration system include?a)stregthening the compressor motor magnetic fieldb)grounding hermatic compressor terminalsc)improving internal compressor lubricationd)making the compressor shell britle31)to improve an air conditioners dehumidification capacity?a)shorten run times an increase airflowb)long run times and slow evaporator air flowc)oversing the unit for the square footaged)oversing the unit increase airflow and shorten runtimes34)what air property is measured in grain?a)wet buld temperaturesb)grain are used to measure the amount of water in the airc)relative humidityd)te weight of air35)the enthalpy lines are nearly parallel to the lines for?a)volume b)dry bult temperaturec)wet bulb temperature d)grain of moisture36)what is the advantage of the extened media surface area in pleated filters?a)reduces the pressure drop across the filterb)created cyclonic filtrationaction between the pleatsc)allows the filter to be flipped over when one side is dirtyd)allows filter to be folded38)in general how does condenser size affect a systems SEER?a a smaller condenser has a higher SEERb)condenders with larger diameter tubing have a higher SEERc)a large condeser has a higher SEERd)the condenser size dose not affect a units SEER

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Airheatman

Heating & Air Conditioning Contractor

6 years college

 
9,376 satisfied customers
What is the best way to increase the turning force on a hand

what is the best way to increase the turning force on a hand to turn bolt?

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HVAC Guru

Service Technician

Associate Degree

 
22,636 satisfied customers
I have a Magic Chef forced air furnace with AC from the 1980's in my condo. Last yea

I have a Magic Chef forced air furnace with AC from the 1980's in my condo. Last year the air blown when on AC stopped coming out cold. Heat works fine. I would like to get it repaired, but I am unable to locate a separate/outdoor condenser unit anywhere on the property, and have been told that my particular furnace does not need one?? There is a copper pipe that runs from the furnace to the water heater closet for condensation, and began expelling a large amount of water the air stopped blowing cool. Also, the furnace has started to run on it's own for short periods of time during neutral temps. I need to figure out exactly how my system works before I call a repair man. Thank you

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Phil

Consultant to Engrs, Govt & Contractors

Degree, Mech Engr Technology

 
9,454 satisfied customers
I have a slant fin Prodigy 21 gas boiler and during really

I have a slant fin Prodigy 21 gas boiler and during really cold outdoor temps it make a blowback noise. I replaced the ingnited, flame sensor, air pressure switch, the main electronic control board, expansion tank, and all valves. Blowback only happens when it is really cold out. What else can I do besides buying a new on Earth?JA: Thanks. Can you give me any more details about your issue?Customer: What other details do you needJA: OK got it. Last thing — HVAC Technicians generally expect a deposit of about $18 to help with your type of question (you only pay if satisfied). Now I'm going to take you to a page to place a secure deposit with JustAnswer. Don't worry, this chat is saved. After that, we will finish helping you.

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Phil

Consultant to Engrs, Govt & Contractors

Degree, Mech Engr Technology

 
9,454 satisfied customers
I have a central heat problem.

Hi, I have a central heat problem.

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BillyHvac

Journeyman Service Technician

State Licensed Mechanical Contractor

 
11,420 satisfied customers
I have a carrier central heating and air system. Heating is

I have a carrier central heating and air system. Heating is natural gas. The thermostat was changed but did not solve the problem with the heating system having to turn off the elect. power to it and putting it back on to get the heater to work every time when temp. dropps below setting. What may be the problem.

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Kcrand36

Technician/Owner

Vocational, Technical or Trade School

 
144 satisfied customers
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