AC not blowing - http://www.hvacmechanic.com/ Forums
Original message
| dsquared
 |  "AC not blowing"
, posted Fri 2 May 11:05  
I have a Coleman Evcon AC-unit outside runs but doesn't blow inside. This happens sporadically. When it does happen I can usually get it to turn back on by shutting if off, then back on. My furnace worked fine all winter. Had a tech out - he couldn't find anything wrong with it. Help!
Without Air
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Replies:
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| yuri
|  "Re(1):AC not blowing"
, posted Fri 2 May 18:04:
Is the fan motor excessively hot when this happens? Are you waiting awhile B4 turning it on/off? If so it may be overheating, cutting out on internal overload and cooling off and resetting itself. That would be a faulty motor or capacitor. If not it probably is the fan relay in your furnace or on the circuit board in it is sticking. Intermittent problems are the worst. You may have to get him to cycle the A/C on/off 2 dozen times and actually catch the relay sticking when it happens. Do this with the outside power turned OFF!! or you will overload the compressor. If it sticks off then tap it lightly and see if it comes on. Had to do this with a sticking gas valve once and a ventor fan problem once. Takes a lot of patience but usually it shows up.
Good Luck
Yuri
[this message was edited by yuri on Fri 2 May 18:08] |
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