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A/C temperature at vent... #5457838 06/19/20 04:09 PM
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gregk24 Offline OP
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The air coming out of the vents in my Accord felt warmer than usual. I checked the temperature of the air coming out and the driver side vent is registering at 47 degrees F on "LO" on recirculate with a fan speed of 4 out of 7. Passenger side is registering at 45 under same conditions. The temperature outside is 90 F and humidity is 50%. Does this sound normal?

If I increase fan speed the vent temp goes up, I assume that is normal since a higher volume of air is passing through.


2012 Honda Accord EX-L K24z3
61,xxx miles
PPPP 0w20 / Fram Ultra

2014 VW Jetta SE 1.8T ea888
54,xxx miles
Castrol Edge 0w40 / OEM filter
Re: A/C temperature at vent... [Re: gregk24] #5457865 06/19/20 04:36 PM
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tiger862 Offline
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Normal


Tiger862
2018 Grand Caravan
Re: A/C temperature at vent... [Re: gregk24] #5457868 06/19/20 04:39 PM
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eljefino Offline
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43' from mine, yours aren't too far off.

Re: A/C temperature at vent... [Re: gregk24] #5457871 06/19/20 04:40 PM
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PowerSurge Offline
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Your AC is working well. That’s a great temp for an ambient temp of 90.


1993 Porsche 964, 2001 Ford SVT F-150 Lightning, 2004 Chevrolet Corvette, 2018 Toyota Tundra 5.7L
Re: A/C temperature at vent... [Re: gregk24] #5457905 06/19/20 05:29 PM
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Lou_Boyle Offline
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Under those conditions you have a HUGE humidity load. Prob 50-60% of the cooling power is consumed in squeezing the water out of the air.

Re: A/C temperature at vent... [Re: gregk24] #5457930 06/19/20 05:54 PM
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WyrTwister Offline
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Originally Posted by gregk24
The air coming out of the vents in my Accord felt warmer than usual. I checked the temperature of the air coming out and the driver side vent is registering at 47 degrees F on "LO" on recirculate with a fan speed of 4 out of 7. Passenger side is registering at 45 under same conditions. The temperature outside is 90 F and humidity is 50%. Does this sound normal?

If I increase fan speed the vent temp goes up, I assume that is normal since a higher volume of air is passing through.


Sounds like it is doing OK .


Wyr
God bless
Re: A/C temperature at vent... [Re: gregk24] #5457974 06/19/20 06:55 PM
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willbur Offline
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Originally Posted by gregk24
The air coming out of the vents in my Accord felt warmer than usual. I checked the temperature of the air coming out and the driver side vent is registering at 47 degrees F on "LO" on recirculate with a fan speed of 4 out of 7. Passenger side is registering at 45 under same conditions. The temperature outside is 90 F and humidity is 50%. Does this sound normal?

If I increase fan speed the vent temp goes up, I assume that is normal since a higher volume of air is passing through.


Wanna measure at the vent closest to the evaporator, fan set on low+ (2), all windows open, outside temp taken near condenser. By way of comparison, my center vent temp was 36.7 and near condenser it was 90. Brrrr

Re: A/C temperature at vent... [Re: gregk24] #5458056 06/19/20 08:26 PM
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Nick1994 Offline
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Sounds ok, is this at idle or driving? A/C performance will likely be better as you're going down the road.


2015 Hyundai Genesis 5.0L 63k Dealer Bulk SynBlend 5w20 & OEM
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Re: A/C temperature at vent... [Re: gregk24] #5458074 06/19/20 08:56 PM
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demarpaint Offline
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That sounds a bit on the warm. A sticking blend door can cause issues not related to the AC itself. That would be something I'd check before connecting my manifold gauges.


God Bless Our Troops

Re: A/C temperature at vent... [Re: gregk24] #5458099 06/19/20 09:32 PM
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14Accent Offline
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If those are idle numbers at a stop, that's pretty good. A 40-45 degree drop from ambient is considered acceptable by most manufacturers, so you're right there.

Your Accord likely has an evaporator temperature sensor that tells the climate control when the core gets too cold to prevent freezing. My '03 Marauder had one, and while cruising it wouldn't let the AC get colder than about 38* at the center vents while cruising in 90 degree temps. Plenty cold, but you could watch the thermometer hit 38, then rise to 41-42, then back down to 38 over and over. My '99 Corolla didn't have a sensor, and the lowest I measured at the center vents on a 90 degree day was 31 degrees before it cut off (I'm assuming from the low pressure switch cutting out due to the low temp).


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Re: A/C temperature at vent... [Re: gregk24] #5458112 06/19/20 09:48 PM
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dan_erickson Offline
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My previous Accord from that era seemed like the AC was never cold enough even though the system was operating like it should. That’s just the way it is.

My 9th gen V6 is a little better but still not what I would consider fantastic


15 Accord Coupe EX-L V6 Navi
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Re: A/C temperature at vent... [Re: Nick1994] #5458145 06/19/20 10:40 PM
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gregk24 Offline OP
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Originally Posted by Nick1994
Sounds ok, is this at idle or driving? A/C performance will likely be better as you're going down the road.


Those temps were taken at idle. I'll drive it tomorrow morning and try to measure the temp when at speed.


2012 Honda Accord EX-L K24z3
61,xxx miles
PPPP 0w20 / Fram Ultra

2014 VW Jetta SE 1.8T ea888
54,xxx miles
Castrol Edge 0w40 / OEM filter
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