Question about Cars & Trucks

1 Answer

HEIL HVAC, fan blows but no heat or AC

When you turn the heat or AC on the fan blows but you do not get heat or AC to come on.

Posted by on

Ad

1 Answer

  • Level 1:

    An expert who has achieved level 1.

    Corporal:

    An expert that hasĀ over 10 points.

    Mayor:

    An expert whose answer gotĀ voted for 2 times.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 7 Answers

Your airconditioning system may be out of cooling gas, and if it has sufficient gas, the compressor might not pick when you put on the AC, and if the compressor did not pick ie start, you cant experience cooling effect, the fan will only be blowing.

Posted on Jan 18, 2013

  • Russell Kimball Jan 18, 2013

    Niether the heat or AC works, is there something in between the thermostat and the heating cooling unit that could be out?

  • Crown Jan 19, 2013

    The thermostat controls the intermittent operation of the cooling system from running endlessly without rest to the system. So the thermostat may not be defective. The issue is most likely the electrical connections of the cooling system. Try get the electrical connection checked by your a/c mechanic or an experienced auto mechanic.

×

Ad

6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Ad
emissionwiz
  • 76164 Answers

SOURCE: Heat/AC blower not blowing air

heck the blower fan speed control resistor, it is located near the blower motor, they are cheap to replace and the most common cause of this issue

Posted on Nov 24, 2008

mrgreenz
  • 962 Answers

SOURCE: heat /ac fan doesn't work properly

Check the relay for the blower. it may be locked . tap it lightly or jiggle the relay or check with a known good relay.this two circuits may be interconnected. check the light relays as well and fuses.

Posted on Nov 30, 2008

  • 3 Answers

SOURCE: 2000 Cadillac Deville - AC and Heat works but no blow!

your fan is shot you need to rplace it

Posted on Dec 28, 2008

  • 78 Answers

SOURCE: My 2005 Chevrolet Equinox ac isnt working the fan

have relays under hood checked, fuses too. Shouldn't take too much to find where the power is cut.

Posted on Aug 21, 2009

  • 534 Answers

SOURCE: MY HVAC fan stopped blowing. Checked all the

Check the blower motor speed control resistor pack is ok.
(The resistor pack is usually located in the blower fan ducting in the air flow).
Check condition of electrical connection terminals on the blower motor circuit - these terminals pass considerable current and over time may fatigue overheat and loosen.
Check operation/replace any blower motor control relay,
Check the blower motor will run if +12v directly applied to the blower motor.
Check operation of the blower motor speed control switch is ok.

Posted on Oct 08, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

HVAC not working. I do not have any faults


Randy, Being this new of Truck, take it back under warranty and have HVAC repaired.

May 10, 2016 | AC Cars & Trucks

4 Answers

Air Con


no the pipes should not be cold and wet but if you just have stop using the aircon recently it will do that for a while till all the gas is out of the system so yes its sorta normal

Oct 02, 2008 | 2001 Chrysler PT Cruiser

1 Answer

AC/Heater blower fan stops blowing air into the cabin when I accelerate.


Usually a vac leak. I would check for a leak in the HVAC control system and the line thru the firewall to the engine.

Aug 17, 2012 | 1998 Jeep Grand Cherokee

1 Answer

Heat or a/c blows only one speed /high only


90% of the time it is a faulty blower motor resistor. The sound when you turn off your HVAC is probably a squeaking from the blower motor fan or the pressure dissipating internally from the AC system. These are normal sounds.

Jan 05, 2012 | Cars & Trucks

1 Answer

I turned on the ac and the light does not work, the vents are not blowing and the car is running hot. I have a saturn SL 1996


First check the 15 amp HVAC fuse located in the main fuse block inside the car on the passenger side of the center console, under a cover. If the fuse is good, then the problem may either be the HVAC blower switch (which is the fan blower selector switch), the fan blower motor resistor, or the fan blower motor. An auto repair manual will explain and illustrate for you the steps on how to check each of these components.

Even after pushing the ac light switch on, the fan blower selector switch has to be turned on as well (working) because it provides an electrical path to the positive side of the battery to complete the circuit and turn the ac light on. What the ac light switch does is provide the electrical path for the ac compressor clutch to come on through the ac control relay which is controlled by the car's PCM(computer) when you want ac, but the ac light switch still needs to run through the fan blower selector switch to receive its power. You can turn on the fan without the ac light switch because it gets its ground path(negative) from the blower motor. So the blower motor has to work in order to provide a ground path for the fan blower selector switch to be functional. You could have a faulty blower motor which is why no air blows through the vents. The fan blower motor is located inside the car on the passenger side underneath the dash at the bottom end of the glove compartment box. You'll see it. It's right above where a person rests their feet on the floor. Therefore, if your 15 amp HVAC fuse is good, check to see if you have voltage at the blower motor connector. Unclip the connector and with the ignition on and the fan blower switch moved to any one of the first 3 selections, check for voltage using a multimeter. The voltage will vary because there is a blower motor resistor. Voltage should be higher on setting 3 than 1. If you do have voltage at the blower motor connector, check for a faulty blower motor. The auto repair manual will tell you how to do it using jumper wires.

It's normal that your car is running hot because the radiator fan works in conjunction with your ac compressor. If the ac is on, the radiator fan will be on and therefore the engine coolant temperature will stay in it's normal operating range. If the ac is off, the radiator fan will stay off as well and the engine coolant temperature gauge will begin to rise and show pretty hot (especially at idle). It will do this up until a certain degree then the radiator fan should turn on thermostatically and stabilize the temperature. It's scary and I know what your saying because it does that to my car if my ac isn't on. Don't worry it won't overheat.

May 29, 2011 | 1996 Saturn SL

2 Answers

My ac blows but my heat want. Whats the problem?


This problem is caused by a part called the AC/Heater air temperature control blend door and or the blend door electric gear drive actuator. If you would like to do this very difficult job and save about $800.00 then go to the web link bleow for the instructions with pictures of the entire replacement process.
http://www.f150online.com/forums/hvac/216009-blend-door-replacement-pictures.html

Jan 13, 2011 | 2001 Ford Expedition

1 Answer

AC/heat/defrost functions don't work


there is a blend door and a selector door in the HVAC system. These are run by vacuum or servo motors. Sounds like this little motor is your problem. Hope this helps you.

Jan 18, 2009 | 1997 Ford Thunderbird LX

1 Answer

Cluster Fuse is Blowing


Pull the cluster out and have it rebuilt.

Mar 14, 2017 | 1993 Buick Regal

Not finding what you are looking for?
Cars & Trucks Logo

Related Topics:

151 people viewed this question

Ask a Question

Usually answered in minutes!

Top Cars & Trucks Experts

yadayada
yadayada

Level 3 Expert

76164 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22156 Answers

Randy Ohler

Level 3 Expert

14585 Answers

Are you a Car and Truck Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...