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Inside unit won't come on but outside will causing severe frost buildup.

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  • jcord25 Sep 05, 2008

    The inside unit will not come on until I move the set switch all the way to right and the back the set temperature. The unit will then come on in about 30 seconds as normal

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MaKe and model number?

Posted on Aug 04, 2008

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2 Answers

We have a Carrier 25HBA unit and we've noticed a frost build up on the outside compressor, my husband turned the unit off and cleaned everything outside and up in the attic. It worked. No frost...


Hello
Frost or ice on the bigger outside copper line is a indicatin of possible low freon.Hopfully that is all it is.

It is also a possibility the compressor is getting ready to break,bad valves.

You will need a tech to come out and charge the system with freon.

Check your filter is clean and new first.

Sep 15, 2011 | Air Conditioners

1 Answer

Ice forms inside unit -frost buildup-on outside-out side fan shaking unit fan running fo r ours


First to solve your icing problem. Due to indoor coil & air filter blocked or short of gas ice formation will be there. And also check the speed of blower motor, if less rpm, change capacitor for blower motor.
Service the unit also.

Second, for shaking the unit means your out door fan cracked or broken. Check and replace it. Is it helpful?

Dec 16, 2010 | Air Conditioners

1 Answer

We have a window unit model ash08fas1 and it is leaking water into the window to our carpet. Does this model come with a drip pan or plug that needs to be moved? And how do we access it?


Look at your unit from outside the house. The back of the air conditioner should be slightly lower than the front. If it is level or the front of the air conditioner is lower it will drip into the house. Some window units have a drain for the water outside and some don't. Look for a hole in the bottom of the unit outside and if you find one make sure it is not plugged. Also dirty coils can cause a frost buildup on the inside of the unit. This will drip also. If this is the case you should see the ice buildup by removing the front cover or removing the front filter.

Jul 04, 2010 | GE ASL05LA Air Conditioner

1 Answer

I have a heat pump and it freeze up


If you are referring to the outside unit freezing up, the issue is in the defrost cycle. The defrost cycle works something like this: The unit reverses the flow of freon causing the inside coil to blow cold air into the conditioned space and the outside coil is now working like an a/c unit, it gets warm to melt the frost/ice. The inside unit electric heat strips come on so you do not notice the cold air being blown in. The fan on the outside unit stops running to allow the coil to get good and warm.
Now the unit should go into the defrost cycle every 90 minutes or so. It should not terminate the cycle untill the coil is clear of frost. There is an "Klixon" type termostat that measures the temperature of the outside coil. This is most likely the problem. It is prematurely terminating the defrost cycle. I'd start there first.

Hope this helps, Let me know if I can be of any further help.

Dec 29, 2009 | Intertherm P3RC-030K Air Conditioner

1 Answer

Fujitsu ASU12C1 is freezing up


unit is freezing up because it either has too much freon or not enough. the pressure should be checked on both the low and high sides and corrected.

Jun 13, 2009 | EMI EHW 18000 Air Conditioner

1 Answer

Our central air has started to not cool. I have looked at the outside unit and lines going from the unit to the inside of the house are frosted. What is the cause and how to fix it?


when lines are frosted you have an air flow problem ie dirty filter or blocked return air grill, fan problem or its low on refrigerant

Jul 14, 2008 | Air Conditioners

1 Answer

Window A/C Air Filter is Soaked


There is a drain tube that usually runs to the outside that is suposed to carry the water away from the unit. It may be plugged. You could use a shop-vac from the outside to pull it through. If you have compressed air you can blow the obstruction out to the inside. Be aware this could make a mess on the inside! After clearing the drain line I would leave the unit off for an hour or so just in case there was any frost building. Then turn the unit back on. If it continues to get wet then the unit may not be leveled correct, or maybe it is low on refrigerant causing the frost on the inside.

Jun 26, 2008 | Friedrich QuietMaster Deluxe RS12L10 Air...

1 Answer

AIR CONDITIONER


Do you have any frost on the lines going to the outside unit. If the large line is frosted your evaporator (Cooling coil in the furnace) could be frozen up. Operating it with the fan in automatic with the cooling on will sometimes be the cause of this condition.

If there is not frost on the large line going to the outside unit and you are getting air circulation inside the house the problem could be a loss of refrigerant charge. Look at the joints where the pipes were soldered to the inside and outside units for signs of oil. If you find oil at any point it is the indication of a refrigerant leak.

May 17, 2008 | Goodman CLQ36AR49 Air Conditioner

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