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We have a manitou 634-120 LSU WE HAD THE AC UNIT WORKING. WE HAD IT CHARGED ADDED THR FRION AND SO FORTH.IT WORKED FINE. THEN ALL THE SUDDEN NOTHING AT ALL. TRIED MANITOU J184817 AND TO NO PREVAIL

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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

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Posted on Jan 02, 2017

rockitman187
  • 2559 Answers

SOURCE: i got a 2006 malibu and the ac worked fine but i

You overcharged the system

Posted on Jul 27, 2009

localwonder
  • 6784 Answers

SOURCE: charger 2006 ac not working blowing hot air

HI. Here is a complete check list that will help you trouble shot thsi issue. You will find the problem in one or more of these areas stated below.

1. Check Drive Belts - The air conditioner utilizes a drive belt that supplies power to rotate the compressor, which is basically a refrigerant pump. If the belt fails the compressor has nothing to drive it, inspect and replace as needed to restore operation. If belt is intact proceed to the next step.

2. Check for Compressor Clutch Engagement - Turn the air conditioner to the "on" position and set controls to the coldest setting. Start the engine and allow to idle. Then open the hood and inspect the clutch at the front of the compressor, is it turning? "Engaged" if so, the system has enough refrigerant to activate. If the system is low on refrigerant it will not work properly. In this case an air conditioner recharge kit is needed to recharge the system. If the system is low on refrigerant it could cycle on and off, making a ticking noise. If the compressor clutch is not turning proceed to next step.

3. Inspect for Refrigerant Leaks - If the system has a large leak and no refrigerant remains it will not activate. First test system for a static pressure charge, with the engine off attach an ac gauge to the low side pressure port and check the state of charge. Depending on outside temperature there should be between 50 psi and 80 psi. (Cool and warm). A refrigerant leak detector is needed to inspect for leak, but if you do not have a leak detector there is an alternative method. The air conditioner system is designed to run with oil suspended in the refrigerant to lubricate the system. Check for oily residue outside the system by inspecting all hoses, compressor, condenser, evaporator or receiver drier and replace any component that has failed.

4. Inspect Fuses - Check under dash panel and under hood power distribution center. Replace failed fuses as needed, recheck system. If the new fuse fails when reinstalled a short circuit is present and requires diagnosing with a wiring schematic, follow circuits to locate short, repair as needed and recheck system.

5. Check Temperature Control Vents - The vents inside your car are controlled by a cable, electrical servo or vacuum servo. If the temperature blend door is not functioning properly it will cause warm air from the heater to exit the vents. To check this start the car and allow the engine idle, next turn the blower motor speed on low, switch the temperature control from warm to cold while your ear is close to the vents. You should hear the door move inside the heater box as it swings from open to close. If not, insect for a vacuum leak or a shorted motor in the servo, repair the leak or replace the servo motor.

Posted on Sep 09, 2009

  • 2976 Answers

SOURCE: On the Air Conditioner on 98 Mustang. Sucked

Either the system pressure switch is bad or you don't have the EXACT amount of refrigerant installed.

Posted on Jun 28, 2010

iambanshee74
  • 3489 Answers

SOURCE: A.C unit just quit working.

This is a usuall indicator of a low charge (not always). Should be looked at by a trusted A/C tech.. Once the system is charged it will correct the issue of the light having gone off.

Posted on May 03, 2011

emissionwiz
  • 75117 Answers

SOURCE: my ac blows warm air

You need to hook up a set of AC pressure gauges to the low side charging port and read the system pressures with the AC compressor turned on and running, it should be around 28-32 PSI. If the compressor press is correct you have some other problem like a broken air temperature control blend door inside the dash air ducting.

Posted on Jun 24, 2012

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My ac blows warm air


You need to hook up a set of AC pressure gauges to the low side charging port and read the system pressures with the AC compressor turned on and running, it should be around 28-32 PSI. If the compressor press is correct you have some other problem like a broken air temperature control blend door inside the dash air ducting.

Jun 24, 2012 | Cars & Trucks

1 Answer

The windshield wipers and the radio will suddenly stop working on my 1998 Mercury Villager. It will happen while I'm driving and then suddenly start working again a few minutes later. Sometimes...


you could have a short in the ignition itself, which as the keys swing back and forth causes a stoppage in the circuit, Mercury has had that problem for years , check all fuses, and with the wipers check the relay also, as far as the lighter,, they will short out , and most car makers suggest not using them for added purposes since they tend to go bad , they were intended to heat a small wire that draws low amperage,, enough to light a cig , some plug in units require more amps and will heat up the socket , which will then short out, causing damage

Sep 16, 2011 | 1998 Mercury Villager

1 Answer

1996 Toyota Avalon. AC was only blowing hot, had it recharged now it works great unless it's really hot out then it only blows hot. Any suggestions?


Most places nowadays that recharge dont deal with older systems so I doubt they did the proper job that you expected them to. They would need to replace the AC unit and the Frion which is a fairly major undertaking.

Jul 08, 2010 | 1996 Toyota Avalon

1 Answer

There is no power to the compressor of a 03 excursion can you help me? i checked the 2 switches, change the relay, everything have power , but the compressor


More than likely you have 1 of 2 problems, since you checked the others as specified. Sounds to me like you either have a Frion Leak or just too low of charge. Without the properly operating seals (the front seal needs oil to work) AND enough pressure in the system, it won't work at all, even if it's getting power. I would have the pressure checked. If you need it refilled, get it vacuumed out before recharging so you have a clean fill. Also while checking for leaks, check the condensor too which should be behind the grill somewhere. Rocks and debris can cause a leak too. If it' old AC Charge it would be an oily residue and if somewhat newer charge then it would be a greenish residue on the units. One or both units could be bad, or one or both could just have a leak. Overall, if you have a low or no charge, it won't work at all.

One key problem many people have is during winter months they tend to NOT operate it at all. As a helpful suggestion, even if you plan to NOT use it, it's still a good thing to turn on for at least 15 minutes consecutive at least one time a month in the months you don't need it. That keeps the oil circulating and stops the frion from locking up the lines from that "cold winter pressure".

There may be shops there local to you that would be willing to do a test charge on the unit for free without a diagnostic charge. Check it out. You never know unless you ask. But if you use AC all the time, you could also have a bad unit that just needs replacing. It's an easy DIY project as long as you have the right equipment.

Hope that helps.

Apr 06, 2010 | 2003 Ford Excursion

1 Answer

Yesterday I just had someone change the battery and now the AC does not work. It only blowes scorching hot air and no cool air.


you need to check the frion try to bring it to the aircondition repair so that they check the frion of your AC

Jul 19, 2009 | 2005 Chevrolet Malibu

1 Answer

AC/Heat goes on and off


Your first area you need to look at is your fuseable links. It sounds as if you have one burned inside the coating. Grab each link and move it back and forth in your fingers. Try to determine if one is broken on the inside.
Bill

Nov 11, 2008 | 1999 Oldsmobile Intrigue

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