Unit makes noise, but no air is coming out of vents
Between last night and this morning, my A/C quite working. When I lower the temp on the thermostat, I can hear noise coming from unit in attic and the unit outside runs, yet no air is coming through vents. I checked the ducts and it all seems connected. While in the attic, the unit makes a hissing sound, like you would hear letting air out of a tank, but nothing else engages. Is there a pilot or something? I need help, its very hot out!!
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Re: Unit makes noise, but no air is coming out of vents
Check the unit in attic for iced up and outdoor unit you may notice ice on lines or connecting tubing and in attic also-------- if so turn unit off at thermostat and leave fan switch on the thermostat to on while sytem switch is off
should be nothing running but the indoor fan
will have to thaw if it is iced up for a while couple hrs. a guess
you will know when it is thawed as your airflow will begin to come back
check your air filter to be sure it is clean
suggestion only-- keep your house thermostat set at 70 degrees or above
you may have developed a refrigerant leak (freon) which would require a hvac service tech to verify.
if it was iced you can turn all back on and try again once you have good airflow again.
or if your system has not been serviced lately? might be a good time to have it serviced?
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if the air comes on for a short time and then turns off for 15-30 minutes, the overload protection inside the compressor is shutting down to protect the compressor. this can be caused by blocked supply or return vents, improper charge, bad valves in the compressor, and a multitude of other things. the problem will have to be corrected first.
It's most likely an airflow problem, you say you had the vents closed? Icing up is normally caused by lack of load (air flow) or loss of refrigerant charge. Make sure all your vents are open to allow for as much airflow as possible and that your filter is clean. Some units do not work well on low airflow setting when the outdoor temps cool down at night.
It sure sounds like the out side condenser fan has gone out.If you need to Fix a water hose to run on it like a spray fanning out over the out side coils(condenser)and try and see if it will cool.It will do the trick,until you get it fixed on week days.If I can help,let me know.>>>firstname.lastname@example.org
sounds like the drain is clogged, it usually comes out if the outside of the unit just below the coil in the middle of the back, there may or may not be a hose attached to the front pan below the evaporator, try pressuring it up to blow it out. worst case you may have to remove from the window, disassemble and clean. hope this helps...
ok...where to start.lol ....the thermostat is just a switch.It will tell the unit to run or not run.if you measure the temp with the heatpump running,the air is warmer than 68 but it feels cool to you because your body is 98.6.The unit will run more often and for longer periods when the temperature drops outside for a few reasons.First,your house has more of a load to heat,meaning you have more heat loss because of the difference in temperatures outside and inside.Second,your heat pump pulls heat from the outside air.The colder the air outside,the less btu's for it to pull.If you have anymore questions email@example.com Hope this helps,Dave