Heating & Cooling Logo

Related Topics:

Anonymous Posted on Feb 25, 2009

No heat coming from central air unit when heat is turned on.

No heat coming from central air unit. Just cool air when i cut the heat on. What are possible solutions??

  • Ken Bledsoe May 11, 2010

    Can you observe to see if the hot surface ignitor is glowing? Or sparker is sparking. And also does the small fan come on to clear out the flue gases? Need sequence of operations to help a little more. ken

  • Anonymous May 11, 2010

    Is this gas or electric or heat pump?

×

1 Answer

Anonymous

Level 1:

An expert who has achieved level 1.

Corporal:

An expert that hasĀ over 10 points.

Problem Solver:

An expert who has answered 5 questions.

  • Contributor 8 Answers
  • Posted on Mar 13, 2009
Anonymous
Contributor
Level 1:

An expert who has achieved level 1.

Corporal:

An expert that hasĀ over 10 points.

Problem Solver:

An expert who has answered 5 questions.

Joined: Mar 12, 2009
Answers
8
Questions
0
Helped
3786
Points
10

Check t stat make sure its set up for you system some stats have to be set up for a heatpump or iits gas or electric heat

Add Your Answer

×

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

0helpful
3answers

Fan doesn't work in heat mode it works on all other functions. Heat does come out but fan doesn't kick in. Outside unit is operating

AC inside fan doesn't come on AUTO - DoItYourself.com Community Forums

www.doityourself.com > ... > Air Conditioning and Cooling Systems
Jul 21, 2004 - The inside FAN doesn't run when in AUTO mode. If I leave ... Is the thermostat not working correctly or something in the AC unit causing it to do this? Thanx ... The unit is electric central air-conditioning(heat and cool). It made ... Carrier A/C condenser fan not working
Jul 27, 2012
Heater Fan Doesn't Work on AUTO
Jan 23, 2006
Blower doesn't work in ON position after repair
Mar 25, 2005
Central AC/Heat, Blower Doesn't work on Auto
Nov 30, 2004
More results from www.doityourself.com
0helpful
1answer

I just put in this new thermostat, I believe all the wiring to be correct i have one extra wire (brown) that should be a common wire used to keep the display lit. when I turn the unit on cool ( with the...

Heat pumps require specific heat pump thermostat. If you are trying to install a thermostat that is generic forget it. A heat pump is a diff animal than a central unit. Get the thermostat that matches your system. A generic won't cut it.

If you need further help, reach me via phone at https://www.6ya.com/expert/dan_73bbd84fe1d95b61

0helpful
1answer

I have a bryant model 702b packaged unit with 5 wire thermostat wiring coming out of the unit. R Y B G and W. The thermostate in the house is 5 wire and goes to the old central unit and them has a 4 ire...

R-Red is power
Y-Yellow is cool
B-Blue is cool as well
G-Green is fan leg
W-White is usually heat Leg


If you have no indoor unit and this is a ac/gas or
electric outdoor unit try this.

R to R/Red to Red
G-G/Green to Green
Y-Y/Yellow to Yellow
W-W/White to White
-Dont Hook up Blue.

Turn power back on turn the fan to on,fan should run
Turn to Heating, heating should come on
Turn on Cooling,if cooling does not come on switch yellow with blue.
0helpful
2answers

Why would my heat pump central air blow cold then warm

Sounds to me like you have wiring issues. Need to make sure all your connections are tight, wires are clean and free of bare spots (possibly from rodents chewing them)and your settings on your tstat are correct. Heat pump with back up electric heat.

If you need further help, reach me via phone at https://www.6ya.com/expert/thomas_092728000e6acb79

0helpful
1answer

Intertherm central unit heating side not working right

I am assuming this is a heat pump? (Typical when the t-stat has a green light.).

Please confirm

If a heat pump, is the outdoor unit frozen up? There can be some frosting, but it should not be a block of ice.

If there is an emergency heat switch on the t-stat, can you flip that to emergency heat? Do you get heat then?

Pleas advise and I can help you troubleshoot this problem further.
0helpful
2answers

Heat coils in central air conditioning unit look fine under examination, checked with an ohmmeter both coils showed continuity. Power at both coils indicated 110 volts. Unit fan runs fine but there is no...

Are you getting 120 vac or 220 vac at the unit? Check the voltage at the first terminals inside the unit as well as the breaker. You should have 220 vac at the elements and you are dropping a leg some where.
0helpful
2answers

Central heat/air unit for home blows cold air

could just be heat trapped in ductwork for attic temp or from not running for more than a few hours.
0helpful
1answer

Ruud heat pump question

Does the air handler take a minute or two to start, this would be normal so that it doesn't blow cool air into the house before the unit is warmed up. If not could be the fan relay is weak and needs replacing. As far as the outside unit it sounds like you need to check the refrigerant. In cooling they are 70/150 psi. This should be checked in cooling mode, once you turn it to heating mode the pressures switch bring heat inside the house instead of out. I hope this helps.
0helpful
1answer

Central air conditoner unit doesnt blow cool air into home has some ice on the inlet heat and cooling lines going into the central air unit

Change the furnace filter. Make sure you use a cheap one when air conditioning, as the better ones restrict airflow when they filter out so much stuff and then plug up, not allowing enough air to pass over the cooling coil in the furnace's air plenum. Turn the A/C off for a few hours (with only the furnace fan on if possible) to melt the ice off the cooling unit inside the furnace.
0helpful
5answers

Not cooling

every single component in your cooling unit is needed for it to work, so anything can shut it down. If you could provide more information as to what type of unit you have: is it a central heat and air package unit? or central split system (furnace indoors and condenser outside)? or a wall a/c? Does any part of the system/unit do anything?
Not finding what you are looking for?

447 views

Ask a Question

Usually answered in minutes!

Top Heating & Cooling Experts

Paul Carew

Level 3 Expert

3808 Answers

john h

Level 3 Expert

29494 Answers

Brad Brown

Level 3 Expert

19187 Answers

Are you a Heating and Cooling Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...