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A/c does not work only hot air tech said servomotor issue?

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Unless you are a mechanic, you need to take to an AC shop or the dealer. That is a hard one.

Posted on Apr 22, 2015

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It only charges halfway


Hey Don, What are you talking about..?? battery, a/c..??
If its the battery. is it a sealed battery..- replace it. If its a lean/acid battery with caps that allow you to check the acid level, check the levels..do not overfill..if all is well - replace it,
If this is a A/C issue, sounds like you need to vacuum out the air and replace it with freon and the correct oil. (try letting out some air - out of the valve where you are putting in freon - PUT A RAG AROUND A SMALL ROUND FLAT NOSE DRIFT(PUNCH) AND PUSH IN THE VALVE.. IF JUST HOT AIR COMES OUT.... you have found the issue....keep letting out air until freon comes out..(I had this same issue.. there was A LOT of hot air in my system.?? ... when I got it out.. the system worked GREAT!! ) - . if freon comes out.. stop!! - get vacuum pump and hose set, and get the air out - (you need an experienced tech for this)

Jun 16, 2017 | Cars & Trucks

1 Answer

What could be wrong with my 2006 Honda Odyssey. It has no heat, but the engine is running hot. I thought maybe coolant level was low but overflow tank was right at max


Temp gauge runs hot but car makes no heat...... HELP ...

honda-tech.com/honda.../temp-gauge-runs-hot-but-car-makes-no-heat-h...
Mar 28, 2010 - Temp gauge runs hot but car makes no heat. ... Honda-Tech Member ... I figured my theromstat was going bad so I replaced that and it did nothing. ... Any help would be awesome, im losing my patience fast and I have a real big hammer ... This is between the engine and the heater core (under the hood).

Overheating Issue - Honda Odyssey Forum

www.odyclub.com/forums/9-problems.../151854-overheating-issue.html

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I have a 2000 Honda Odyssey with 200K+ on the odometer. ... small head gasket leak,but not enough to see coolant pouring out and no ... 4) Bad thermostat (your new onecould still be bad) - Since your engine is getting hot but you are not getting any heat, ... My coolant was changed at 10yrs/150K miles. Thread: 2007 Odyssey LX - cabin heating issues, no heat ...
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Dec 28, 2015 | 2006 Honda Odyssey

1 Answer

No heat in Audi A6 1995 had heater core and valve


U HAVE A CLIMATRONIC OR A MANUAL ONE?CLIMATRONIC IS WITH THE TWO SCREENS!!IF U HAVE THE CLIMATRONIC THERE IS A SERVOMOTOR THAT CONTROLS THE HOT AND COLD !!! IF POSSIBLE SEND PHOTOS

Feb 27, 2014 | 1995 Audi 90

1 Answer

I have a Toyota 1995 Camry that is blowing AC incorrectly, I believe is my vent but I'm not to sure, i do feel the cold air on my leg part , but not on my face. Any idea?


This is a system which is driven by an amplifier and servomotors which open and close flaps depending on your settings. I think the air outlet servomotor may have failed . See here p58


http://www.turboninjas.com/camry/ac.pdf

Apr 01, 2013 | 1995 Toyota Camry

1 Answer

AIR MIX SERVOMOTOR


whats the problem?

Sep 13, 2012 | 2005 Toyota 4 Runner

1 Answer

When its cold the heater turns on. but when it gets hot outside again. the heater stays on. lexus is300


Like almost every thing there can be a number of thing causing this. Checking the Ambient temperature sensor would be a good place to start. The sensor is located in the front bumper and can be tested with ohm meter. The next item that should be checked is the servomotor that is a little involved so let me know what happened with this temp sensor first. also check the plug and wires out to the temp sensor also. 53b2cf1.png5acd5d8.png

Oct 20, 2010 | 2002 Lexus IS 300

1 Answer

Honda Accord LX has bad temperature control switch? I just got my A/C recharge with new freons and it is working. Before it was just blowing hot air when A/C is switch on and the A/C control knob turned to...


  1. what year model is accord?
  2. there are several doors in the air box
  3. blend door (hot cold)
  4. mode door (defrost, floor, vent)
  5. recirculation door (outside air)
  6. if the control mechanism is defective. the tech may have reached under the dash and manually opened the blend door.
  7. which control knob does not work mode or temp?

Jul 26, 2010 | 1994 Honda Accord

1 Answer

Air condition blow hot air after replacing compressor &accumulator,orfice,pull vaccum charge system everything seen to be working well but inside it is blowing hot air


On this car the blend air door is known for cracking at the swivel point that the motor sets in to change it back and fourth, Trust me as a 24 year ford tech, You need a new heater box to repair this issue

Jun 10, 2010 | 1997 Lincoln Town Car

1 Answer

1990 Lincoln Town Car Blows only Hot Air


Be sure the compressor clutch is cycling. Also, check the orifice tube, evaporator and condensor for blockages. Freon level should be checked with manifold gauges and compared to specs.

Aug 02, 2009 | 1991 Lincoln Town Car

3 Answers

A/c in jetta blows hot air, its been charged, compressor comes on.


you need to have it diagnosed by a professional. These are complicated systems even to a trained tech. You may be over or under charged, have a clogged expansion valve, have a leak or many other issues. This model has a rcv refrigerant control valve inside the compressor which regulates the pressure of the compressor. If you notice the compressor never shuts off like conventional auto a/c's do the only time the clutch works is when you turn it on or off. Can be complicated.

Jun 02, 2009 | 1998 Volkswagen Jetta

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