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No hot air with Firstco UC-HW Series Fan Coil Unit How do you clean, fix or troubleshoot?

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Remove door at water coil, find hose bib, connect garden hose, cycle unit, open hose bib, allow to flow until no air just solid stream of water. turn off valve. close door. check temp.

Posted on Apr 07, 2009

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Posted on Jan 02, 2017

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How to fix a air conditon


Clean air filter?,. Coil air filter protects clean?,. Wash outside coil,. Is blower fan and outside fan up to speed,. If all this is true the. Freon related most likely

May 29, 2016 | Honeywell Heating & Cooling

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Air Conditioning - Cleaning the Condenser Coil


Normal 0 MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman";} Air Conditioning works by exchanging heat from inside a building to the outside air. To do this some very basic refrigeration principles need to take place. One of the most critical pieces that make this happen is the condenser coil. This is usually the aluminum coil the surrounds the air conditioning compressor.
What happens inside this outdoor unit is a very basic state change of the refrigerant inside the air conditioning unit. The refrigerant that changes from a liquid to a gas inside the indoor coil moves to the outside where the compressor compresses the gas under high pressure. When this happens the gas also becomes very hot. The hot gas then leaves the compressor to start traveling through the many feet of tubing in the condenser coil. As the gas cools it changes back to a liquid form going back indoors to start the cycle all over again.
Big problems start when the condenser coil becomes so blocked up with dirt that the hot gas in the condenser coil does not cool enough to change the hot gas back to a liquid form. If this happens the cooling process does not happen and then air conditioner runs but is not cooling. The compressor starts to get very hot and the ultimate result will be the death of a compressor. For these reasons the condenser coil must be kept clean and free of debris at all times when the air conditioner is running. Cleaning the coil is a fairly simple process, Here are a few guidelines to follow when doing this.
To clean the coil a few simple tools are needed. A garden hose with a nozzle, wrenches to remove the condenser fan, a garden sprayer for applying the cleaning solution. The first thing is to disconnect the power to the outdoor unit. There should be a disconnect switch of some type near the condenser. Then remove the fan from the condenser unit. Usually this will be the top of the unit. The fan can usually be laid aside carefully without disconnecting the wires to the motor. Carefully wet down the coil with the garden hose. If you have very high pressure water where you live be careful that the water pressure does not bend over the fins on the coil. These are very thin and fragile. If they get bent over the air will not be able to freely flow through them. Using the cleaning solution from the garden sprayer, coat he inside and the outside of the coil. Let the solution work on the dirt build up before washing it off. If you use a foaming type coil cleaner then let the foam cook the dirt out of the coil. Then use the garden hose to wash the dirt out of the coil. I often work from the inside spraying out through the coil. This is the reverse of the usual air flow and it washes the dirt out easier. Rinse the coil with water till it is clean with no more dirt or cleaner coming out. Replace the fan and start the unit back up.
The cleaning solution for the condenser coil can be any good household cleaner. Many automotive type radiator cleaners will work well. For very dirty condensers it would be good to buy a foaming coil cleaner made specifically for cleaning condenser coils. A local plumbing and heating supply house should stock coil cleaning solutions. Most of these solutions are very strong chemicals. Be sure to wear gloves and eye protection when working with them.
By keeping your air conditioning condenser coil clean, you will help to have your air conditioner running at the best efficiency possible. A clean condenser coil is one of the easiest ways to save electric while running your central air conditioning system. A clean coil will allow your compressor to run cooler and help it to last longer. Your condenser coil should be thoroughly cleaned at least once a year. If in you live in very dirty areas like along a dirt road you may need to clean the condenser coil more often. Also do not do things that would clog up the coil. Blowing grass clippings into the condenser coil is one common thing that happens. Keep shrubbery from growing into and around the condenser coil. This stops the air flow to the coil. Large flowers planted too close to the coil can do the same thing.
As you can see there are many things that can cause your air conditioner to work harder and cost you more money. By taking a the time to look over things and give it a cleaning you can save a lot of money.

on Dec 03, 2009 | Heating & Cooling

1 Answer

My frigidaire air conditioner is making my apartment feel damp and when i took my filter out to clean it that part was damp too! What do I do to fix this?


You may have a clogged drain or the unit is installed without enough angle pitch for the water to drain to the back of the unit toward the outdoor section of the unit. I'm assuming it's a window air conditioner? The moisture condenses on the cooling coil near the filter and should drip down into a condensate drain pan, then the water should drain to the back of the unit into a pan at the condenser coil fan that is rejecting the heat outside. The fan blade usually has a ring on the outdoor fan that pick up the condensate moisture the fling accumulated water onto the hot condenser coil to evaporate it. Also the filter should not be touching the cooling coil. Make sure it in the correct slot. Some a/c cooling coil require a wetting agent that allow the water to slide down the coil and not pull off of the coil into the indoor circulating fan.

Sep 11, 2015 | Frigidaire Heating & Cooling

1 Answer

Outside temp was 113, the compressor stoped fan stayed on.Only hot air. Latter in the day compressor and fan worked fine. Should I be concerned ? Thank Mike duo therm 13500 .no heater


Hi,
It just got so hot that the unit kicked out on high head pressure...
Check the outside condenser coil for dirt... wash it out with soap and water so that you can get maximum air flow through it...

Air Conditioning - Cleaning the Condenser Coil
heatman101

Sep 28, 2010 | Dometic Rooftop RV Air Conditioner

2 Answers

The unit freezes up


When a AC freezes up the most likely reason is that the evaporator coil (the one the cold air comes from) is 'dirty,' and/or the filter (that goes in front of the coil) is also 'dirty.'

Be sure to defrost the unit (if it isn't already).

If it presently has ice on it - just turn the unit to FAN ONLY and allow it to completely defrost (all ice gone).

Then: Be sure the filter is 'clean' and air can flow through it.

Be sure the coil is also clean.
Note: if the coil is dirty you can usually clean it fairly easy with a brush. Often (especially if the unit is freezing up) you can actually 'peel' a layer of 'wet matted stuff' from the coil by hand.

Another reason (less likely one) for the unit freezing up - is that the fan motor is going off (when it shouldn't) and the "lack of any air" over the coil is causing the unit to freeze up. You didn't say anything about the fan motor not running so it's not likely this is your problem - but be aware - that fan motors can get hot and will go off on internal overload - UNTIL - it cools down and then will come back on - so - if you're not watching - it's possible the motor could be "heating up and going off (for 30-90 minutes) and coming back on" without you realizing it, which would cause the unit to freeze up. Like I said - this is not likely though. If, however, it is doing something like this - the 'sure-cure' is to replace the motor. The cost to replace a blower motor will be somewhere in the neighborhood of $200 which should cause one to think about buying a new unit.

Another reason - also 'less likely,' is that the AC is 'low on refrigerant.'

If - after checking the filter/coil - you find that they are both clean and not causing the problem - and you've watched the fan motor and it's not going 'off and on,' then, you must consider that the unit is 'low on refrigerant,' which will require a Service Tech - who has the expertise and tools to repair the leak and re-charge it. If this is the problem you're probably looking at a repair bill of $75 -$125 - which when considering the price of 'new air conditioners' might cause you to think about buying a new one.

Hope this helps.

Jun 10, 2010 | Friedrich CP12C10 Wall/Window Air...

1 Answer

Cleaning


If practical - the best way to clean a unit like you're describing would be by using 'air pressure,' to blow the dust out of the coils, squirrel cage, and in and around the fan motor and compressor.

Then take a water hose and wash both coils being real careful to "not" get water in the fan motor. Note: the compressor is sealed so you don't have to worry about it, but try to be careful and keep water out of the controls/wires (you might even use plastic to protect them).

Also, be sure you install a 'clean/new' air filter in the unit itself. This filter goes in front of the evaporator coil which is the coil that gets cold. The other coil - the condenser coil (the one that gets hot) does not need a filter.

good luck!

May 11, 2010 | Haier Energy Star ESA3183 Air Conditioner

1 Answer

My split system gets cold for 1/2 hour then blows hot air, and then it will only blow hot air


1. Check to make sure everything in the condensing unit (outside unit) is running....compressor, fan motor. If you do not have electrical experience, contact a qualified service technician.
2. Check to see if the condensing coil is clean. In many cases this can be cleaned using a garden hose.
3. Check to see if there is any ice or visibly frozen areas. If so, ensure your air filter and your evaporator coil (coil in the air handler) are clean. Ensure your return grille and supply vents are open and not blocked.

Hope this helps. Good Luck! :-)

Feb 26, 2010 | Heating & Cooling

1 Answer

Fan Coil Unit is Cycling on and off. But the room is still hot.


Check electrical connection at the T'stat and the indoor blower . Sounds like a loose connection.

Sep 11, 2009 | Cfm Daikin R410a Split System Air...

3 Answers

My blower motor doesn't blow air out the air ducts why


Check for a frozen cooling coil. Turn the fan to the on position at the thermostat and the cooling to off. Your cooling coil may be iced over. Allow it to run in the fan only mode until the coil has had a chance to defrost. At the outside unit you may see the large line is frosted. This is the visual indication for a frozen coil. When you return the A/C to cooling use it with the fan on while in the cooling mode.

May 26, 2008 | Carrier XHB123D X/Y Series Heat/Cool Air...

2 Answers

Soleus KFR-18 Air Conditioner Problem


Check your thermostat settings at heat mode.

Jan 03, 2008 | Soleus KFR-18 Air Conditioner

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