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Frost build up

A thick frost builds up on front of air conditioner sometimes

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One of the best maintenance proceedures for a window unit is to take it outside, spray the coils (evap and cond) with spray cleaner like 409, simple green etc. and rinse well with the hose. This is needed every two seasons or so to maintain efficiency. Of course, allow it to drain completely and dry before putting back into service. Your issue is however typical of a unit with a slightly low charge condition. It will not hurt it to run so long as you set the thermostat to a setting that just avoids the condition. This can also happen if the thermostat is not seated against the front of the coil so it senses the temp properly.

Personal example:
My grandparents had a 30,000 btu Admiral A/C window unit a long time ago. It would cool the whole house. It quit cooling once, and they called a guy to service it. He told them it needed a compressor. They balked at it and asked me. After my brother and I took it out and cleaned it, It worked good as new.

Posted on May 22, 2009

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Coil dirty filter dirty fan speed to low could be low on freon

Posted on May 21, 2009

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Does the frost build up on one side or one corner of the evaporator? (The evaporator is the part that gets cold, looks something like a radiator.) If so, almost certainly a low refrigerant charge.

If the entire evaporator ices up, it's most likely an expansion valve or thermostat problem. Does it work at expected efficiency before it ices up or does it seem weak?

If the entire evaporator ices up it could be close to causing major damage, if refrigerant is still liquid when it reaches the suction port on the compressor it can blow out a reed valve, which destroys the compressor.

Posted on Jul 17, 2014

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1 Answer

How do you make a freezer frost free?


Frost free means that the evaporator coil will not accumulate a thick layer of frost. It will not prevent frost from accumulating on the walls of the freezer. To slow down the amount of frost build up inside the freezer, do not keep the freezer door open for any longer than necessary. The freezer door seal may be defective. This would allow moisture in that would freeze on the inside walls. A heater with timed intervals to come on is one way for a frost free feature. But this will not work for frost build up on the inside walls of the freezer. It would only melt the frost and then it would refreeze again.

Aug 31, 2015 | Frost Freezers

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Frost free fridge freezer build up of ice


The defrost timer has quit.
They have a relatively short life.

Jul 25, 2015 | Hoover Refrigerators

1 Answer

Why frost on coild central sir conditioner?


Try checking the filter. Blocked filters restrict air flow over the radiator causing ice to build.

May 21, 2014 | Kenmore 72187 Air Conditioner

1 Answer

The contents of the refrigerator freeze even on low settings


One of the most common problems with freezers is their tendency to build up a thick level of frost and ice that can disrupt performance. The ice can form on the hoses and cause the fan to freeze up. While you want the freezer to be cold, too much ice is not good for the freezer or the food inside it. There are multiple reasons a freezer could start to develop frost buildup.

Freezer Overstocked
Frost can build up in the freezer if there are too many items inside of it. Air cannot properly circulate around the freezer, so the areas with the sitting cold air can freeze the moisture. Frost continues to build up and accumulate, which then allows it to spread. If food is stocked up near the fan, cold air can't get past it, and the fan itself could develop frost to the point where it freezes and stops working entirely. This can be prevented by not overstocking the freezer and by evenly distributing food throughout.

Temperature Setting Too Low
The freezer should have a thermostat that regulates how cold it gets. If the temperature is set at too low of a setting, the freezer kicks into high gear, the air freezes outright and frost quickly builds up. Adjusting the thermostat to a higher temperature or level can counteract this problem, but you may need to de-thaw the freezer to eliminate the frost that has already built up inside.

Keeping the Fridge Door Open
Many people keep their fridge door open for extended periods of time while they examine the contents inside to see what they want to eat. This can contribute to frost buildup in the freezer, because the fridge is taking in a lot of warm air during this process and the fan pushes it up into the freezer. The moisture in that air is then quickly frozen, and ice can build up substantially as a result. The longer the fridge door is held open, the more likely this can occur, so the best solution is to only keep the fridge open for short intervals and then to not open the door again for a while.
Hope this tips will help you. : )

Aug 17, 2011 | Refrigerators

2 Answers

Ice formed on outside of line!


try running the air conditioner in defrost mode. set the temperature to warmest while air conditioner is on, for about two minutes. then slowly move the lever towards cold, all the while having the vent set on outside air. once you move it toward cooler, move the vent switch towards recirculate from outside air.

when you have it on defrost, open the engine hood and push the air conditioner button. watch the lines and see if they begin to build frost. if not, move the slider toward cold a little bit at a time while watching the lines to see if they begin to build frost. if they do start to build frost at any point after running the defroster in A/C mode for a bit, you can always try positioning the temperature control towards the middle or run only the outside instead of recirculating vent.

Jan 18, 2011 | 1998 Ford Escort

2 Answers

Freezer building up with frost


Sounds like the defrosting system has a faulty timer/board, faulty heating element or bad electrical connections to these components.

More info, let me know...

Charlie

Aug 23, 2009 | Amana 22.6 cu. ft. Side-By-Side...

1 Answer

Freezer temp 7-20, ref temp steady 35. Ice on return line


HI thanks for your question. the way that frost builds up on the return line is the freezer is running too long . you have the temp set at too cold a setting 34 deg is too cold. it should be 36. 37. other wise frost builds up.thanks the appliance doc. please rate my answer. thanks.

Aug 13, 2008 | GE Monogram ZICS360NRRH C... Bottom...

1 Answer

Filter cleaning


The filters are located on the isnside unit in the front. Sometimes there may be a screw or two to undo, but usually not. The front vented looking part will lift up, or you can pull the filter out from the top of it. It depends on the model, but that is the two ways to get to them...once out, a mild soap or rinse with plain water will clean them. If they have pet hair or very thick build up, you may use a soft brush on them. Let dry and slide filters back in. Hope this helps.

Jul 31, 2008 | Sanyo 12KS51 11800 BTU Cooling Only Mini...

2 Answers

Freezer works; fridge side doesn't


First thing to check is look and see if there is  thick frost build up on the back lower panel inside the freezer?  If not there must be a problem in the damper (vent).  Let me know what you find so I can help.

Oct 21, 2007 | GE (PSS26MSRSS) Side by Side Refrigerator

1 Answer

Ice or frost on the inside coils of the ac unit


Reduced or no airflow, Evaporator may be dirty. Low on freon.

Jul 31, 2007 | GE AJCQ08ACB Air Conditioner

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