Question about Heating & Cooling
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Posted on Jan 02, 2017
Chesapeake, given your symptoms you'll be looking at installing a new Selector Switch. But, before you go there... UNPLUG THE UNIT OR SHUT OFF THE BREAKER!!! Your selector switch does two things at a time, It energizes the fan motor (which it IS doing) and energizes the compressor at the same time. The voltage to your compressor goes from the wall into the selector, out of the selector, through the temp control then to the compressor. When the temp control is satisfied, it interrupts power to the compressor. The click you hear is the temp control being NOT satisfied and trying to send power to the comp. But if there is "no power" to send (i.e., the selector switch has failed)the compressor won't know to engage. Remove the front panel and filter. Remove the control box housing. Remove the knobs from the controls. You will now see the selector switch. Remove the 2 screws that fasten it (don't remove the wire yet!) and install the new switch. Then, one wire at a time, remove the wires from the old switch and install them on the new one. ***If you have an OHM meter, check the temp control before ordering a selector because this may be the problem and NOT the selector! To do this... remove the 2 wires from the temp control, set the control to "coldest". Then with your meter, test OHM's between the terminals. If you see "zero" OHM's, it's good. If you see no change in your meter, it's bad and THIS is the source of your problem. If you don't have a meter... you can test using this procedure... cut a 6" length of wire and strip the ends to about 3/8", twist the copper ends tightly. Remove both wires from the temp control, then insert one end of your jumper wire into one terminal and the other end into the other terminal. Make sure the "jumpered" wires are away from anything metal!!! And plug the unit back in. Now turn the unit on. If the unit fires up? It's the temp control, If not? it's the selector switch. Here's a link for parts...http://www.repairclinic.com/0080.asp
Posted on Aug 09, 2007
There are three settings. If you have it on FAN, it won't blow cold. The raindrop picture is for dehumidifying, and the snowflake picture is the setting for COLD. If you shut the unit off and on too quickly, it takes a minute or two to cycle back to cool.
* Make sure the 'snowflake' setting/picture is selected...
Ours works too good! We sleep with 2 blankets! Nice...
Posted on Aug 21, 2010
SOURCE: My Haier wondow air conditioner
A few basic principles for air conditioner troubleshooting. For both central home air conditioner or window air conditioner,
the first thing to check is whether the unit is getting proper power.
If the unit uses 220 volt power be sure that the proper voltage is
getting to the unit. Same for 110 volt units. A voltage meter can be
used to assure that the voltage is correct.
For window air conditioning units the voltage can also be checked before and after the thermostat. If voltage is being supplied to the thermostat but not from it then the thermostat probably needs replaced. This is a fairly common problem. Another place to check is the fan motor voltage. The fan on window air conditioners runs both the indoor blower and the condenser fan. If that motor fails than the compressor may run for a short time, but will overheat and shut off. Continued operation like this will result in compressor failure. This motor can be economically replaced for larger window air conditioners, but for smaller ones the cost of replacement will be more than a new unit.
Central air conditioners for the home are more complex and there are more things that can go wrong. As with the window air conditioner the thermostat can also be a problem. The central air conditioner thermostat will only have 24 volts going to it. So don't look for high voltage there. Some units the voltage will be coming from the outdoor unit and others the voltage will be supplied by the indoor air handler or furnace. Most home central air conditioning will be supplied by the indoor air handler or the furnace. If the air conditioner is for cooling only the unit will usually have only two wires going to the condenser unit. Make sure that you have 24 volts across those wires.
The next thing to check will be the indoor blower. If your thermostat is calling for cooling then the indoor blower should be running. If there is no air moving across the indoor cooling coil then you will soon have a big block of ice formed on the coil. This can happen for a few reasons. The indoor blower is not working, the air flow is restricted and not allowing air to move across the coil. A clogged air filter would also do this. Or the outdoor condenser unit has lost the charge of refrigerant.
Finally and worst of all is when you have a complete compressor failure. Often when this happens the compressor will "lock up" or not be able to turn when power is supplied to it. Overheating or lack of lubrication are usually the main causes of compressor failure. Overheating can be caused by the outdoor coil around the compressor getting clogged with dirt, leaves, or grass. Loss of the refrigerant charge will also cause the compressor to overheat. It is the cool return gas coming back to the compressor that helps to keep it from overheating.
As you can see there are many things that can go wrong with an air conditioner and I have not come close to exhausting the possibilities here. I have just touched on the most common problems in a very basic way.
There are some basic trouble shooting things that can be done very easily. Most problems are above out of the range of comfort for many homeowners and professional help should be consulted before any attempt is made at repairs. Remember also, that the release of refrigerant gases into the atmosphere is a federal offense in the US. Proper care must always be taken to minimize the release of any gases. A license is also required to handle refrigerants. Make sure that the professional you call has the proper certifications to handle refrigerants properly.
Posted on Jun 07, 2011
dcorey, Freon is no longer used. R134A refrigerant gas is what is now used. Unless, you have all the proper equipment to purge the system and then introduce the refrigerant gas into the compressor, on the high side and the low side, it's not a DIY project. However, you can contact Haier Consumer Support 1-877-337-3639 for an authorized repair center in your area.
Hope this helped you.
Posted on Jul 07, 2011
Testimonial: "Thank you I never thought there was a refrigerant gas."
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