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The motor is out on our central heating unit. Model

The motor is out on our central heating unit. Model #FRNCNF030T00ABAA, Serial #1812A70501. Choice Home Warranty has advised us that this unit is still under warrany Please adviseJA: Did you double-check the thermostat's settings? And what about the filters?Customer: Yes. We change the filters every 60 days.JA: Do you plan on doing the work yourself?Customer: NoJA: Anything else we should know to help you best?Customer: I had two technicians, one from Houston Air Comfort the other from Integrity Air check the unit out

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gotoman for ac

HVAC Service manager and owner

Associate Degree

5,368 satisfied customers
I am thinking of removing all of my central heating and

I am thinking of removing all of my central heating and replacing it with infrared panels. We will also install a combi boiler but just for water. Is this a good idea?

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Phil

Consultant to Engrs, Govt & Contractors

Degree, Mech Engr Technology

10,390 satisfied customers
I have a Baxi Luna 310 Fi boiler (installed 7 years ago)

I have a Baxi Luna 310 Fi boiler (installed 7 years ago) which is short cycling. It starts up on demand but runs up the temperature within seconds and cuts out.I had just recently bled off one of the zones in order to remove air which had built up. I had not closed off the boiler valves when I did this and am wondering if I created an air build up / lock in the boiler. I have tried bleeding off the boiler at it's outlet valve but this did not resolve the problem.

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Rick

Supervisor

26,272 satisfied customers
I have a Baxi Nuvola 3 equipment.The proble is that during

I have a Baxi Nuvola 3 equipment.The proble is that during water heating the safety walve is leaking a bit for a couple of seconds.It wa suggested to install an expansion wessel for HVAC and here the problems come from.There exists a factory recommended vessel with two connection line.Unfortunately,I can not connect the upper line of the vessel to the top of the boiler since there is no any kind of connectivity.Only the magnesium anode is built into the upper flange.Any idea ?JA: Did you double-check the thermostat's settings? And what about the filters?Customer: Oh,yes,everthigh is ok with themAnyhow,I measured the pressure int he boiler during heating and it went up to 7.7 bar when the safety walve started to open a bit.JA: Do you plan on doing the work yourself?Customer: Yes,I think I can do itJA: Anything else we should know to help you best?Customer: Yes,I apprecita if someone could explaine why my boiler has no connection assembly fot the expansion vessel? On the other hand,the user manual shows both connection points of this vessel but the upper one is m issing from my boiler...

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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

1,614 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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3,110 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

Supervisor

26,272 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

11,078 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

164 satisfied customers
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