I have a new Lennox 15 seer 2.5 ton and it won't keep my northern Minnesota house below 78 during the day. I have it running set at 75 and the temp climbs all day and doesn't come down until after 10pm. Why is this?
2006-07-17 15:01:37 · 10 answers · asked by Deanharv 1 in Home & Garden ➔ Maintenance & Repairs
the unit is either undersized, malfunctioning, or the house just isn't insulated right.....call the lennox guy.....atta boy dave
2006-07-17 15:05:44 · answer #1 · answered by hillbilly named Possum 5 · 0⤊ 0⤋
Have you checked the insulation in the ceiling & walls? Ceiling should be R30. You could be losing a lot of air and gaining heat if the insulation is low. If there is no insulation in your walls or floors, then you should increase the ceiling insulation higher than r30. Do you have insulated windows? Also check for leaks and such around your doors. If the system is new, I would call the HVAC contractor back to check it out, hopefully still under warranty. He can check the temperature coming out of the vent and know if it is working properly. If the air is coming out hard and cool, it is probably the insulation/roof/windows or the unit isn't large enough.
2006-07-17 15:09:58 · answer #2 · answered by Beauty Consultant 2 · 0⤊ 0⤋
Run the ceiling fans whether you have the ac on or not to circulate air ,here in Florida,sometimes we have to set in a small widow ac in the opposite end of the house than the outside unit (which is usally a room that gets direct sun most of the day) and set it on low during the heat of the day. Itg is about circulation, heat absorbdion and btu s.
2006-07-17 15:18:17 · answer #3 · answered by Carol H 6 · 0⤊ 0⤋
If this is a new installation the only thing that you should check is the filter in the air handler. The rest should be covered under warranty and checked by the installer or factory authorized technician.
2006-07-17 15:53:49 · answer #4 · answered by Anonymous · 0⤊ 0⤋
Check all of your ductwork and seal all leaks at the junctions.
Next do the same at the vent openings.
Check the integrity of the air exchanger too for leaks.
Make all seals with aluminum duct sealing tape... not just plain cloth duct tape... that dries-out with time.
After that if it still doesn't improve, get a tech out to check your backpressure and circulation and suggest any corrective action you can take.
2006-07-17 15:08:30 · answer #5 · answered by J.D. 6 · 0⤊ 0⤋
You have to keep it running all day.....I don't have equipment nearly as good as yours, but i finally broke down and turned my ac on when the inside temp reached 85f...it didnt drop down to 75 until i left for work the next day.....
2006-07-17 15:07:49 · answer #6 · answered by Anonymous · 0⤊ 0⤋
My only suggestions would be that it is not bif enough, which seems unlikely. you have a leak in the hose coming in the house or, it needs to be changed with freon.
2006-07-17 15:06:07 · answer #7 · answered by Anonymous · 0⤊ 0⤋
You state that it is 'new'. Contact the installer or where it was purchased. Sounds like something not set correct, maybe low on gas...... whatever. If it is new warranty should fix it.
2006-07-17 15:06:02 · answer #8 · answered by pappy 6 · 0⤊ 0⤋
Check to see if the BTU is the right size for your house.
2006-07-17 15:04:55 · answer #9 · answered by willster459 2 · 0⤊ 0⤋
You could try replacing your thermostat controll, checking furnace filter, or just better insulating your house.
2006-07-17 15:09:00 · answer #10 · answered by jack_black_91 6 · 0⤊ 0⤋