Question about Heating & Cooling
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Posted on Jan 02, 2017
SOURCE: air conditioner
Turn off unit supply and check the blower wheel inside the indoor unit by rotating it manually by your finger if the blower wheel rotates freely then there is something wrong with your fan motor or fan motor capacitor. But if the blower wheel is not rotating freely try to check the fan motor for lubrication or some bushing dried of and no oil
Posted on Dec 31, 2007
SOURCE: Split System Air conditioner
There normally two types of leakages from the wall unit.
1.The warm air in the room when comes in contact with the cooling coil of heat exchanger (consisting of fine fins where compressed refrigerant evaporates) looses its heat & cannot retain the same moisture content at lower temperature at the point of contact with evaporator. There is a provision of a drain pipe to carry this condensed water to outside water drain. So if the drain pipe is choked or the coupling joint of the drain pipe at the bottom of cooling coil is not proper, there will be water leakage, This can be easily attended by physically looking at the fittings.
2.The second problem can be the leakage of the refrigerant. If there is second type of problem, then there will be very little or no cooling irrespective of continuous running of air conditioner. This can be easily checked by feeling the temperature of outlet air from the air conditioner.
Conclusion-As you have written that there is leakage from the air conditioner, but you have not written whether it is visible or invisible. If the leakage is visible, it is problem number 1 & if it is invisible, it is problem number 2.
If you are not satisfied you are free to ask for more explanations.
Posted on Jan 29, 2008
I am a repair man and have had this problem quite a few times, check that the remote is set to heat and 30 degrees.usually a symbol like the sun,very similar to cool easy to mix up.If the a/c is set to heat the indoor fan will not start till outdoor unit has heated coil.
Posted on Feb 10, 2009
The simplest way of explaining this is as per the following. On your outdoor compressor unit there should be two pipes, one smaller diameter [high pressure] and a larger diameter pipe [low pressure]. Turn your A/C on inside the house and then shut off the smaller diameter pipe. Run the unit for a around 3 to 4 minutes and then check if the cooling is reducing from the unit inside the house. When you feel room temperature air [not cool] being emitted from the indoor unit shut off the larger diameter pipe and turn off unit. Isolate electrics, disconnect A/C piping and immediately seal the piping with good quality tape to prevent egress of dirt. When re-installing a quick purge of gas is usually only required to clear the lines if they were sealed properly and kept clean. Ideally running a vacuum pump is recommended but if care was taken then it may not be needed, as in many of my installations.
Posted on Nov 13, 2009
5 flashing is ' compressor drive' and check the high pressure, condenser fan motor capacitor for proper running
Posted on May 21, 2010
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