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Old 07-18-2013, 06:41 PM   #1
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A/C not cooling


One of the hottest days of the year, 94 with heat index at 106. Around 6 this evening I noticed it was warmer than normal, and warm air was blowing from the vents. The thermostat is set at 75, but it was reading 79 in the house, the unit has always kept up in the past. I have a HEIL 5000 compressor unit, which is about 10 years old, and a Rheem Criteron II furnace of unknown age. I checked the compressor and it didn't sound like it was running, but its fan was. I turned the system off then back on, and am now getting cold air.

What should I start looking for, or check, to see what is going on? Thanks

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Old 07-18-2013, 07:36 PM   #2
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A/C not cooling


Sounds like you should look for an a/c tech.

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Old 07-18-2013, 07:54 PM   #3
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A/C not cooling


is the condenser in the direct sun might of tripped and locked out within the condenser....is there a solid state board in the condenser with a led on it...always reset the breaker which resets the 24v circuits..with the stat off fan and system..then rework the stat..might want to hose out the condenser from the inside out...get in the habit of grabbing that thin raw copper line just out of the condenser when it is running.. it should be warm on a 80F day but never hot if so the coils might be dirty. when the condenser fan is blowing that heat into your face it is being taken out of the Freon and the changes it to liquid going into your air handler...if the coils are dirty or restricted the heat will trip on the liquid line instead.
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Old 07-18-2013, 08:13 PM   #4
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A/C not cooling


yep. When a compressor shuts down but the fan keeps running means the compressor is overheating. Unless you have the tools to check it's not really a DIY deal.
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Old 07-18-2013, 08:27 PM   #5
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A/C not cooling


Quote:
Originally Posted by biggles
is the condenser in the direct sun might of tripped and locked out within the condenser....is there a solid state board in the condenser with a led on it...always reset the breaker which resets the 24v circuits..with the stat off fan and system..then rework the stat..might want to hose out the condenser from the inside out...get in the habit of grabbing that thin raw copper line just out of the condenser when it is running.. it should be warm on a 80F day but never hot if so the coils might be dirty. when the condenser fan is blowing that heat into your face it is being taken out of the Freon and the changes it to liquid going into your air handler...if the coils are dirty or restricted the heat will trip on the liquid line instead.
The condenser was in direct afternoon sunlight. I'll hose it out this weekend, it's been a couple years since I've done it.
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Old 07-18-2013, 08:46 PM   #6
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A/C not cooling


Welcome to Summer daveplot. Regardless if the Condenser is in direct afternoon sunlight, like mine is, it is not going to cause your indoor temp to raise that high. You need a tech, not a garden hose.
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Old 07-18-2013, 09:40 PM   #7
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A/C not cooling


Possible run capacitor failure.

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