my wall unit blows cold air for about an hour than just quits. its about three years old, do i need to add freon or something?
2007-08-25 09:48:49 · 11 answers · asked by sunsaah2002 2 in Home & Garden ➔ Maintenance & Repairs
Also, sometimes after prolonged use it makes loud sounds like chunks of ice are falling inside.
2007-08-25 09:52:28 · update #1
You should have it serviced and cleaned at least once per year.
2007-08-25 09:57:07 · answer #1 · answered by Tony A 6 · 1⤊ 0⤋
From what you describe the evaporator coil is freezing up. This can be caused from a lack of air flow or low refrigerant charge or a metering device failure.
First off clean the filter and vacuum off the fins on the coil. Use a soft brush vacuum attachment you don't want to collapse the fins. You may need to remove the front cover to do this.
Don't run the system when the outside temperature is below 70f that can cause icing.
If none of these things resolve the problem you will either need to replace it or have it repaired. It could have developed a refrigerant leak and the lack of refrigerant can starve the coil causing it to freeze.
You could also have a plugged capillary tube or if it has a TXV it could have failed. Either way only a HVAC tech can diagnose.
2007-08-25 10:55:00 · answer #2 · answered by mike b 5 · 0⤊ 0⤋
If its only three years old you shouldn't need a new one. It sounds like it could be low on freon. Find the leak and fix it. Start by looking outside where the lines attach to the unit. You can get other info at www.hvac-for-beginners.com
2007-08-25 09:57:06 · answer #3 · answered by Anonymous · 0⤊ 1⤋
Have you cleaned the filter? Usually, the large panel underneath where the cold air blows out opens and the filter pulls out.
This is where the air goes in. Less air in, less cold air out. This can also cause icing.
2007-08-25 11:02:36 · answer #4 · answered by jason m 3 · 0⤊ 0⤋
by wall unit, are you talking about a window unit?
if so, they are a closed system and you cant check refrigrant levels. you can add a service valve to check suction levels and to charge it if needed. 3 yrs old isnt old enough to lose a charge already, so you ll need to find the leak or keep getting it charged.
2007-08-25 11:49:13 · answer #5 · answered by Anonymous · 0⤊ 0⤋
That is a possibility but you will need a set of gauges to find out. You may have to call someone with the proper tools to check it.
2007-08-25 09:56:50 · answer #6 · answered by tronary 7 · 0⤊ 1⤋
the quantity of electrical energy (Kilowatt hours) it makes use of relies upon upon how long it runs. changing the temp interior the room/residing house one degree chillier will take a quick volume of utilization. placing the temp ten tiers cool will for sure take lots longer and use extra electrical energy.
2016-12-12 11:47:53 · answer #7 · answered by ? 4 · 0⤊ 0⤋
Change the filter. If that doesn't work, get it serviced.
(that's what my husband just told me. He is a professional maintenance person.)
2007-08-25 09:53:15 · answer #8 · answered by Anonymous · 1⤊ 1⤋
its frozen you for sure need to get service for it
2007-08-25 09:56:43 · answer #9 · answered by andrespb22 4 · 0⤊ 0⤋
Sounds like you do; If that doesn't do it, you may need a new one.
2007-08-25 09:52:14 · answer #10 · answered by Anonymous · 0⤊ 3⤋