My unit worked just fine 2 days ago. I had been turning it on and of throught out the last week or so because of the cooler season. Now it wont blow any cold air, I go outside and look, and the drain pipe is frozen, and when I turn the air on the fan and everything frosts over. What can I do??
2006-10-05 08:28:38 · 19 answers · asked by Kelly H 4 in Home & Garden ➔ Maintenance & Repairs
Unfortunately, it's time to call in the A/C repair squad. Do it soon, before you do some serious damage.
addendum:
The HVAC guy just walked by and I showed him your question. He said that you should check/change your furnace filter. Seems that low air flow can cause freezeups.
I would try that first. It's a lot cheaper than calling the repairman.
2006-10-05 08:30:24 · answer #1 · answered by credo quia est absurdum 7 · 0⤊ 1⤋
I doubt the drain pipe is frozen, you're probably referring to the 'suction line'. (If your drain pipe is frozen then it's way to cold out to run the A/C). If the 'evaporator coil' , (the coil inside the 'air handler') is frosting over you have one of many possibilities: Dirty filter, low refrigerant level, low air flow across coil, very low ambient temperature, dirty evaporator coil, just to name a few.
If a refrigerant leak a service tech is required. Changing the filter can be done by you. Other problems would best be determined and solved by an experienced tech.
Can't recall ever seeing a evaporator fan frosted......
2006-10-05 15:58:32 · answer #2 · answered by usaf.primebeef 6 · 0⤊ 0⤋
There are TWO main reasons for this.
Low air flow over the coils.
Low freon charge.
Assuming that the unit HAS BEEN running fine, it is probably a dirty filter or dirty indoor coils. If it is a filter just change it.
NOW you have to let the unit DEFROST.
The easiest way to do that is to leave the thermostat set to ON on the ON-AUTO selector and the HEAT-OFF-COOL selector set to off.
Thgat way the fan is running over the coils to warm them but the condenser is not running.
When it is totally defrosted you can set it back to COOL.
Make sure you change the filter first of course!
If the filter is clean, it is a low charge or the indoor coils are EXTREMLY DIRTY.
2006-10-05 16:54:00 · answer #3 · answered by Frust Parent 3 · 0⤊ 0⤋
It is probably from either leaking Freon, or clogged pipes. We had the same thing happen a couple of years ago. And it was a problem with the Freon Leak. You will need to call the maintenance people from where you purchased the unit. It may still be under warranty.
2006-10-05 15:33:57 · answer #4 · answered by Kali_girl825 6 · 0⤊ 1⤋
Leave the fan on and turn off the compressor.
You might be low on Freon. Or the humidity might be high and it is a little cooler there now causing it to freeze up.
Let it thaw out and try again.
DO NOT use a pick to chip the ice off of the coils.
Good Luck.
2006-10-05 15:31:21 · answer #5 · answered by C 7 · 0⤊ 1⤋
We had to have ours repaired, although it was a window unit but it did the same thing, completely froze over in the dead on a Texas summer, then we went a week without any AC. The coils on our were getting to cold but I am not sure of what actually causes this.
2006-10-05 15:31:36 · answer #6 · answered by Stephanie S 2 · 0⤊ 1⤋
I worked in the ac industry usually it means not enough freon the insulation is not in place or it is low on freon have checked by professional
2006-10-05 17:03:30 · answer #7 · answered by mmgak06 2 · 0⤊ 0⤋
Your unit is low on Freon. Have a licensed repair man refill it.
2006-10-05 17:01:40 · answer #8 · answered by Anonymous · 0⤊ 0⤋
Low on Freon. You have leak somewhere in the system. You'll have to get a a/c tech out to check it over.
2006-10-05 16:14:25 · answer #9 · answered by bugear001 6 · 0⤊ 1⤋
Sounds like you have a freon or coolant leak - that stuff will freeze or appear frosty.
You need maintenance on that AC unit.
2006-10-05 15:30:05 · answer #10 · answered by gatesfam@swbell.net 4 · 0⤊ 1⤋