The inside unit of the system comes on when turned on. However, the outside unit clicks but does not comes on, the fan, nor the compressor. I was told that this may be a contact switch that has gone bad. Any suggestions?
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How on earth can you get hot air or hot water from very cold outside air? How does a heat pump make this heat out of cold air?
When certain gases change their state from a liquid to a gas or from a gas to a liquid the magic happens.
A heat pump can do some pretty amazing things, when it comes to making heat. To understand the way they work, you must first understand what happens when certain gases change from a liquid state to a gas and back to a liquid again. To simplify it a bit we need to look at a basic air conditioning system. The refrigerant in an airconditioning system is changing to a liquid in the outdoor condenser. The compressor compresses the gas forming a hot gas. As this gas cools under high pressure it changes into a liquid form.
Inside the indoor coil the liquid is pushed through a small hole or orifice. When it comes out the other side it rapidly changes it’s state to a gas as the pressure suddenly drops. The rapid pressure drop changes the refrigerant to a very cold gas. Air flowing over the cold gas inside the pipes makes the air cool and provides air conditioning.
Now for a heat pump the process is much the same, only coils are just switched by used a reversing valve in the outdoor condenser unit. Instead of the heat being purged to the outside from the condenser unit, the indoor unit then becomes the condenser coil. The outdoor coil becomes the cold coil and cools the outside. This is why if it is very cold outside the unit will have to run in air conditioning mode for a short time to defrost the outside cold coil. When this happens the system will usually have electric heat inside to run and keep the indoor air warm.
The reality is that a heat pump is really no more than an air conditioner running in reverse. Through the magic of using refrigerants, a heat pump can then run many times more efficiently than straight electric heat. A careful heat loss/gain should always be performed by a qualified service person before any sizing of a unit. Too large or too small of a heat pump system can make it inefficient and possibly cause it to be very uncomfortable. The longevity of the unit can also be affected by sizing and installation. Be patient and look carefully for the best contractor to install your system.
A properly designed and installed heat pump system can give you many years of comfort and efficiency. If you look for and find the contractor that can do the job right you will get many trouble free comfortable years from your heat pump unit.
If you turn the unit to heat and say set the temp to 85 and the furnace fires up but the blower doesnt turn on after a minute or 3, 3 things to check. One is the fan control switch in the plenum. It says the plenum is hot and ok to turn on the blower. If the switch is ok, then check the blower and the capacitor. Set unit to AC and set temp to meat locker. Outside compressor and fan should come on immediately. If not
have a friend turn it on from inside while you listen outside. If you here a click, the contactor is good. If it is, check to see if the 230 Volts circuit breaker (inside in the panel) has not tripped. If thats good check the disconnect next to the outside unit. Then check for 240 AC or so on the far side of the contactor. If thats good, check the split capacitor with the power off. If all the above is good, and the fan doesnt come on, replace the motor in the outside fan. If the fan does come on and the compressor does not, see if there is a protection switch that needs to be reset. And if you dont understand the above, call a reputable dealer (ask your neighbors who they trust)
Check the defrost board in the outdoor unit... it should have a wire coming off pins that are stamped 30, 60, or 90. If the wire is on 90, then try setting it to 60 or 30. This just enables the defrost board to check the freezestat in minutes...the shorter amount of time, the less likely the unit will freeze up.
Not sure which model number the Heil Max Pro 10 warranty uses. Heil will usally place the model number on the side of the outside unit or inside the cabinet for thee Inside unit. Click here for a direct link to=> Heil HVAC
Use care when reading any warranty because the wording is mostly written so you do not understand.
To help you decide which Heil product and warranty protection is best for you, select from the following at-a-glance comparisons.
mcdevito75 here, This is normal condensation, the water should be directed away from inside the house, if need be call an A/C repair shop to come to the house and increase the tilt of your A/C unit in the window so any water or condensation build up is directed outside.
Welcome to FixYa,
Check the Following Is your filter clean? Look and the evaporator in the inside unit. Is it frosted up? Do you have condensation water in the pan? Go to the outside unit and feel the air coming out of the fan. Is it warm? Now feel the 2 copper pipes coming out of the unit. Is the small one warm or hot? Is the larger one cool ? Is there moisture on it? Air conditioner runs but doesn't cool at all If the airflow is good and the air coming out is not cold, your home air conditioning problem may be a temporary problem - your coils may have frozen. Turn the unit off for an hour to let them thaw, then try again. If cold air is now present, freezing coils were the problem; if the problem recurs soon after turning on, you may need to replace the coils. Again, call a pro. If you have ceiling vents in upstairs rooms and the air flowing from them is consistently warm, you probably have leaky or poorly insulated ductwork in your attic. See my Attic ceiling insulation page for more information on insulating ductwork that runs through attics. Another likely home air conditioning problem if you have good airflow but no cooling is that thebreaker to the outside unit is shut off, which, depending on the installation, can either cause the air conditioning system to not run at all, or to appear to be running but not provide any cooling. If you can hear the compressor fan running outside, the breaker is on, but if the outside unit is silent the outside breaker may be off. If switching it on does not solve the problem, look for the high pressure cut outon the condenser and try resetting that. Check this Link for Detailed RepairClick here
Hope you got an Idea...Thanks for Contacting FixYa...
The attic fan is not a part of your a/c system, and you should not run it while you are running the a/c. If you are currently using the attic fan, it is possible that someone wired it so that the a/c won't turn on while the attic fan is on. Otherwise if the thermostat is set below room temp, and says it is calling for cool, then the problem is most likely coming from an issue at the outside unit itself. Make sure to check your fuses, at the fuse panel and outside breaker. Hope this helps
FYI.. the only part of the system that might use batteries is the thermostat.