Question about Fujitsu 18C1 Air Conditioner

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Wall unit emits a chemical smell when the unit is running

The unit is less than a year old and is being run daily. During the past month we noticed that when the unit is running there is a chemical smell coming from the unit

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Check the condensate pan clean out with vinegar water solution make sure you do not see any oil residue that would be a sign of a refrigerant leak let me know if you have further problems your manual should tell you how to get the cover off

Posted on Jan 08, 2009

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From my past experience, if this is a wall zoneline, it may not be tilted back enough for the water to drain and it is shorting the motor out because of too much water being slung around in the unit while running.

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Ammonia like smell when a/c is running


The smell you are getting isn't ammonia, it's CHLORINE GAS! Here's what's happening....When you do not use the RV for a while, the solids in the holding tank concentrate, and the amount of naturally produced ammonia increases. When you add chlorine bleach (sodium hypochlorite) to the holding tank, the chemical reaction of the two liberates chlorine gasses, which your air conditioner is spreading about the coach. My best advice would be to flush your holding tank as well as possible, and to always flush it thoroughly before putting it away for a few months. Also, make sure that your holding tank vent is open and operational. Your vent should not be too close to your A/C's fresh air intake (this should be checked, as it is the likely path that the gas is taking). Never run straight bleach into the tank without having yourself an escape plan. The reaction can cause the gas to be produced in a higher volume than the vent stack can accomidate, and liquids/gasses can come back up your drains violently under extreme conditions. I don't want to scare you, but ammonia and bleach just don't mix. Ventilate your area as thoroughly as possible whenever you have to put straight bleach in the tank. Open windows and doors, turn on exhaust fans. If you get any hints of chlorine gas, vacate the area. People have died from being overcome by the gasses, not just in RV's but in their homes as well.
Best wishes and regards, --W/D--

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1 Answer

Fan in our Sharp "Comfort Touch thru-wall a/c stopped


Unless the Unit can be cleaned ( you claim it cools?) but not enough. The age of the Unit is not in you Question, the amount of time you got for 100 bucks is pretty good being you purchased a USED UNIT. With the type of use you claim Running 24/7 and about 5 months of cooling - I'd say you never cleaned the Unit from day one - that might cost you about 100 bucks if the unit can be done in the yard by a serviceman. Chemicals can hurt the Unit if not done properly ( and yourself). It sounds to me like you use it for a Business - if so you can purchase one and write it off .

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1 Answer

AC not cooling during the day


Your AC cooling efficiency is low when he ambient temperature is high and naturally it cools well when the outside temperature drops.

Please remove the filter on the grill and try to clean it under the tap water and after removing all the dust fix it back to the unit. This would increase the cooling efficiency of the unit.

Your AC is also five years old. Please avoid frequent opening of doors or windows.

Ensure that the exhaust fan and the blower of your unit are functioning normal.

The technician might not have done a proper job in fixing the area where the refrigerant would have leaked out. Please check the refrigerant pressure to ensure that no further refrigerant leak has taken place. Or even servicing your unit he would have punchered the tubes resulting in very slow leak of refrigerant resulting in no cooling or less cooling. It takes around a month to feel the pinch of it and the refrigerant. One fine morning after sometime the unit will run and it would start throwing hot air instead of cool breeze!

Jul 13, 2009 | Air Conditioners

1 Answer

Chemical odor coming from ventilation system


I do belive I would some research to see if I could find out if there was dirt haul in from a chemical plant or close to one where run off surface water.If you can't find anything out you may try find what type order it is.Do you think it smells like freon?

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3 ton goodman heat pump package unit, odor coming from vents


I ran upon this a few years agoafter 20+ years in the industry it is actually called "DIRTY SOCK". In the winter the drain pan and trap dry out and all the junk left behind when the summer rolls around mix with the condensateand cause the odor. "Home owner fix" pour a cup of bleach down the drain and in the pan let sit for about an hour then pour a gallon of hot water, that usually takes care of it.

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