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Discussion Starter · #1 ·
Hi, has anyone had an issue with the AC . Just noticed that with sport setting, passenger side vent was warm and driver side was cool? i was unable to get both vents cool?? any ideas what the problem could be?
thanks for any feedback.
 

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FiskerJoe
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I am hoping it is not the problem that I just had...bad cooling fan which appears to be a well known issue.

You should get it checked. I didn't. The car over heated and I also had to pay for a radiator...total over 3K USD.
 

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If your center radiator (ICE) fan is working, it could be a calibration ussur with HVAC module. Have seen a couple stuck dampers though and Harleyguy and I have both replaced hvac units for damper problems. If its just a calibration issue the car has to have a newer hvac module in order to accept latest software and calibration. Old modules wont communicate with scan tool. The scan tool software will identify whether or not its compatible and able to upgrade/calibrate dampers.
 

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Discussion Starter · #4 ·
Good morning, I played around with A/C temperature and put it at max and all went back to normal?? The air was cold in both vents, not sure what happened but seems like back to normal?

I will have HVAC module checked out at dealer to be sure... Thanks for your feedback!
 

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Acura Vent Slider
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Need To Check

Your A/C system may have lost its charge of refrigerant. This is probably the most common cause of a no cooling problem. Another possible cause of no cooling may be that your A/C compressor is not be engaging when you turn on the A/C. This can be caused by an electrical fault in the A/C compressor circuit or the magnetic clutch that drives the compressor. Another cause could be an internal obstruction inside the refrigerant circuit that is preventing refrigerant from circulating inside the A/C system. Another possibility might be a blend air door inside the HVAC unit that is stuck in the HEAT position and is preventing air from flowing through the A/C evaporator.

Compressor Checks
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Start with the compressor. Does it engage when you turn on the A/C?

If so, the compressor is working and the A/C system probably contains enough refrigerant to make cold air, so the problem is inside the HVAC unit. Replace the motor that controls the blend air door (this is a difficult job and best left to a professional since it involves tearing apart the HVAC unit -- about an 8 to 10 hour job!).

If the compressor does not engage when you turn on the A/C, see if it will run by jumping the compressor clutch wire directly to the battery (use a fused jumper wire). If the compressor works when you jump it, and the A/C blows cold air, the system contains refrigerant and the fault is likely a bad A/C compressor clutch relay or a bad clutch cycling switch or pressure switch.

If the compressor does not engage when you jump it, the problem is a bad compressor clutch.

If the clutch engages but the compressor does not turn (the belt will start to slip and squeal), the compressor is locked up and you need a new compressor.

If the compressor clutch engages and turns the compressor, but the A/C still does not blow cold air, the system is probably low on refrigerant and needs to be recharged.

Refrigerant Checks
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Connect an A/C pressure gauge to the HIGH SIDE service port (located in the high pressure hose that runs between the compressor and the condenser in the front of the engine compartment). The gauge will tell you if there is any pressure in the system. Simply depressing the service fitting valve with a small screwdriver to see if any refrigerant squirts out is NOT an accurate check because it tell you how much pressure is in the system. It may still have some pressure but not enough to trip the low pressure safety switch so the compressor will engage.

If your A/C system is low or out of refrigerant, check for leaks, then have the A/C system vacuum purged to remove air. After the air is out, it can be recharged with the specified amount of refrigerant. It is important to get any air out as this will reduce cooling efficiency and may make the compressor noisy.

A/C System Functional Checks
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If the refrigeration circuit seems to be working (refrigerant in the system, compressor running and building pressure), but there is still no cooling, the problem might be an obstruction in the orifice tube (located in the high pressure hose between the condenser in the front of the radiator, and the evaporator located in the passenger compartment). A blockage here will prevent the refrigerant from entering the evaporator or recirculating through the refrigeration circuit.

If the orifice tube is plugged, the high side pressure reading will be lower than normal, and the low side reading will also be lower than normal because no refrigerant is circulating through the system.

If the refrigeration circuit seems to be functioning normally (compressor running, frost or condensation on the high pressure line from the condenser to the evaporator), but no cool air is blowing out of the ducts inside the car (and the blower is working), the fault is likely a BLEND AIR door that is stuck in the HEAT position, or possibly a badly clogged cabin air filter that is restricting airflow. Another possibility would be a fault in the automatic climate control system such as a ad interior temperature sensor or control module.

My advice to you if you know nothing about A/C service is to find a repair shop that specializes in A/C repairs and let them diagnose and repair your air conditioning cooling problem. Today's A/C systems with automatic climate control are very complex and require special tools and know-how to diagnose and repair.
 

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I'm not sure Martinadam actually owns a Karma (please correct me if I'm wrong), otherwise he would know the Karma quirks do not always follow any type of logic. Every once n a while my A/C stops blowing cold. Sometimes turning the A/C off for a minute works, The last time it happened, I had to reboot... the problem has yet to reappear.
 

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I'm not sure Martinadam actually owns a Karma (please correct me if I'm wrong), otherwise he would know the Karma quirks do not always follow any type of logic. Every once n a while my A/C stops blowing cold. Sometimes turning the A/C off for a minute works, The last time it happened, I had to reboot... the problem has yet to reappear.
You are correct he knows nothing about a Karma he might even be a Bot .
 

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I get the A/C bug every 100-200 start-ups. Like many have said, everyday is a new day when firing up the Karma, even with 530/535.
 

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I am having A/C problems as well. I can usually get it to blow cold air for awhile but then all of a sudden it it stops and only warm air comes out. Do you think this is an HVAC control module or some other type of problem such as charging?
 

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I am having A/C problems as well. I can usually get it to blow cold air for awhile but then all of a sudden it it stops and only warm air comes out. Do you think this is an HVAC control module or some other type of problem such as charging?
I would suspect the engine cooling fan they have a high rate of failure. The should should always be running when the AC is on and when the engine is running. WHen the AC stops cooling open the hood and listen for the cooling fan it's fairly loud
 

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I would suspect the engine cooling fan they have a high rate of failure. The should should always be running when the AC is on and when the engine is running. WHen the AC stops cooling open the hood and listen for the cooling fan it's fairly loud
I did not hear a fan when engine and/or AC is running. Are the fans fairly easy to replace as I do not have a Fisker dealer near me? I assume these are the fans you see on EBay for the Fisker?
 

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I did not hear a fan when engine and/or AC is running. Are the fans fairly easy to replace as I do not have a Fisker dealer near me? I assume these are the fans you see on EBay for the Fisker?
The Fans they sell on Ebay are the fans that caused the Karma to catch on fire. If they are the small ones those are for the low temp radiators Fisker did nothing as far as recalling the old style fan to be destroyed we changed tons of them. The new style fans have a yellow dot on the blades.
You need the engine cooling fan I replace them all the time so its hard to say if you are able to do it in your driveway . The fan can get removed from the top if you take off enough parts .
 

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The Fans they sell on Ebay are the fans that caused the Karma to catch on fire. If they are the small ones those are for the low temp radiators Fisker did nothing as far as recalling the old style fan to be destroyed we changed tons of them. The new style fans have a yellow dot on the blades.
You need the engine cooling fan I replace them all the time so its hard to say if you are able to do it in your driveway . The fan can get removed from the top if you take off enough parts .
Do you have a Fisker part number for the fan or the one you replace them with?
 
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