06:12AM | 08/08/00
Member Since: 08/07/00
4 lifetime posts
I have central air with a Lennox unit kept outside the house. I can see it kick in (blades turning) but it stops whirling within 1 min. The vents in the house are blowing air that is the same temperature as outside air, indicating that I am not getting anything from the AC. Any suggestions would be greatly appreciated.


03:18PM | 08/08/00
Member Since: 02/19/00
206 lifetime posts
Lennox have a lo and hi pressure control inside the outside unit. The hi pressure switch is manual reset and is probably not your problem. check the refrigerant level.. Call a HVAC company. What is the model # on the outside unit?


02:54PM | 08/10/00
Member Since: 08/07/00
4 lifetime posts
I gave up and called a service repair. He checked to inform me that there is a slow leak (question follows!) under the "dryer" of the unit, resulting in a low level of Freon. Missing Freon, the system was overheating to a stop after running for merely minutes. With a recharge, the unit is running again!

The leak has been caused by corrosion from water logging into the base of the unit which was not draining out properly. The leak is verrrrry slow. The question - Repairman claims that I would have to replace the entire dryer assembly and the tube underneath that has the leak, since leaks are unpluggable. I find this a bit exhorbitant, since the unit costs $50 and he is claiming a total of $250 to fix it all. Is there a product to plug hairline leaks (at least temporarily)? We use our AC unit less than 5 to 6 times a year!!



10:48AM | 08/11/00
Member Since: 02/19/00
206 lifetime posts
OK,..First of all, almost every A/C unit develops a leak at on time or another, and it's not uncommon. Dryiers are good, but do not have to be replaced, provided that the refrigerant circuit is clean... Which it is.....
I asked you for the model # before??? Your unit should be able to be pumped down to avoid extra cost's. There is a product to plug leaks, but it's made for the lo pressure side of the system and it''s not all that good. Since your leak is on the Hi pressure side of the system, only soldering will due.
With labor in Western NY, your bill would be 168.00 less tax...... Your area may be different, but the price sounds hi too me. Insist on (not) having the dryer replaced,....( this is ONLY if the system is uncontaminated).

If you have any Q:s you know where I am.

[This message has been edited by HOLLYWOOD (edited August 11, 2000).]


03:22PM | 07/23/17
Member Since: 07/19/17
1 lifetime posts
My AC starts out Ok but stops after exactly 55 sec of running. The air is cold and all seems to be working well. After a wait of about 5 min it starts again for 55 sec and so on. I have replaced the furnace filter and cleaned the AC coils of dust. The Nest thermistor is only 8 months old. What do you think it is. I Don't see any 'freeon' leaking.
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