Question about Heating & Cooling

1 Answer

My airwell outside unit ices up when turned on , only in the mornings , is this a normal thing to happen.

My unit is on heating and is turned on at 6am.

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Heating & Co... Master
  • 1,071 Answers

Yes and no. Your outdoor unit will begin to freeze when the temp is extremely low. Should have a defrost feature that will quickly thaw coil and resume heating once thawed. This should all happen on its own.

Posted on Aug 10, 2017

6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

  • 124 Answers

SOURCE: out side unit will not go into defrost cycle

most likely a bad temp sensor on the outdoor coil. you are seeing ice so its cold enough to defrost but the sensor is not seeing ice so it doesn't. usually a generic 3/8 or 1/2 clamp on sensor will fix. you can freeze the sensor with a little r22 and it should close and fall into defrost or jump it and it has to proof closed and the unit should defrost. if you jump it you may have to speed up the board to diagnose. usually jumping test pins together throws it into a 5 sec in 20 seconds out cycle. kind of like turning a 24 hour days into 24 seconds. or to protect the board you can just find the sensor pull it, replace it and watch what happens next cold night. good luck

Posted on Nov 10, 2008

  • 7 Answers

SOURCE: Ice build up out side hitting fan

pop out drain plug heat up pan with heat gun to melt ice

Posted on Dec 16, 2008

  • 587 Answers

SOURCE: Is it normal for fan on outside unit to be on while on heat mode

Yes, it is normal with a heatpump, you run the outside unit in cooling and heating.
It is also normal when the outside unit goes into defrost for the outdoor fan to shut off during the defrost mode and to see steam coming out of the outside unit, while it's melting the frost or ice, then the fan will come back on.

Posted on Jan 06, 2010

Testimonial: "Thanks a bunch! I was really starting to worry."

  • 117 Answers

SOURCE: outside unit iced up how do de-ice

As with the simplest way to thaw ice is with heat.

If you are running this unit in cooling and have ice outside, then you most likely have a freeze up inside as well. If this is a heat pump unit, then frost is normal during operation, however, ice build-up is an indication of a problem.

There are 2 effective ways to remove the ice build-up. The first is the simplest. Get your water hose and hose it down. Be sure to turn off the breakers to the unit and avoid spraying the electrical compartment. If you have the ability to hook the hose into a hot water line, then this process with be extremely fast. Let the unit sit for about 20 minutes to dry out and turn it back on.


The second can be a little more complicated if your not tech savoy. You can turn the system on in the cooling mode. This will make the outdoor coil the condenser section. Then, either block the airflow through the coils with an object, put an object over the fan to increase pressure, or if you can, disconnect the fan so it does not run. This method is essentially the same as a defrost cycle.

As with any failure, you can fix the problem at hand, but it will return. After you get past this, your real challenge will be determining what caused the freeze-up.


If you were running your system in cooling already, then you will need to ensure the system has de-iced on the inside as well.

Posted on Jan 12, 2010

  • 141 Answers

SOURCE: UPCA-018JAS heat pump outside unit doesnt come on when turn on

check the fuses out side

Posted on Apr 06, 2010

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

I have an armstrong heat pump and am curious about how the defrost cycle works.


Rather lengthy but here it is.
The outside unit(heat pump) has a reversing valve, a defrost board, a crankcase heater, a metering device(txv or piston) and an accumulator. This is what makes it a heat pump instead of a straight air condensing unit.
When in the heat mode the outside unit becomes the evaporator and the inside unit becomes the condensing unit.Before somebody corrects me i am just stating what is different in a heat pump.
When the system goes into defrost several things happen. First the system has to call for a defrost cycle. This happens on a time and temperature sequence. When the defrost board times out for a defrost check(the defrost board has a jumper pin to determine how long before the system will check for a temperature(thermal switch) is open or closed. This switch is in the normally open position. It will close at 35 degrees(depends on the switch). This switch is located on the copper line in the condensing unit. If this switch is closed then the system will go into defrost. Now for the good part. This will shut down the outside fan, switch the reversing valve, and the outside unit will essentially go into cool mode. Because the fan is off the compressor will heat up very rapidly and the refrigerant passing thru the coils will be hot as well. This will cause the ice buildup on the outside unit to melt(defrost). This will continue until a temperature is met or it times out. Then the system will return to the heat cycle. One other thing, depending on how your system is wired the inside unit will turn on the auxillary heat while the defrost cycle is in process. That way you will still have heat while the defrost cycle is in process.
It is not uncommon for steam to come out of your outside unit while this is going on. It can also be quiet noisey sometimes.
Hope this explains what you wanted to know. If not just reply to this with any other question you have about the cycle.

Sep 14, 2011 | Heating & Cooling

1 Answer

My Grand Aire heat pump is forming ice all around the outside fan unit... Is this normal?


No that is not normal. Your AC unit may be low on refrigerant coolant and needs to be recharged. If it's low, there's probably a leak, which is causing the ices on the outside unit. Contact a qualified service technician to check & service the unit.

Feb 17, 2011 | Heating & Cooling

1 Answer

It has lots of ice build up around outside unite i would say about 5 inches high around it. Is this normal in winter


Depends on the outside temperature as if the temperature is lower there will not be heat exchange and so frosting can happen.

Feb 08, 2011 | Heating & Cooling

2 Answers

Outside unit iced up how do de-ice


As with the simplest way to thaw ice is with heat.

If you are running this unit in cooling and have ice outside, then you most likely have a freeze up inside as well. If this is a heat pump unit, then frost is normal during operation, however, ice build-up is an indication of a problem.

There are 2 effective ways to remove the ice build-up. The first is the simplest. Get your water hose and hose it down. Be sure to turn off the breakers to the unit and avoid spraying the electrical compartment. If you have the ability to hook the hose into a hot water line, then this process with be extremely fast. Let the unit sit for about 20 minutes to dry out and turn it back on.


The second can be a little more complicated if your not tech savoy. You can turn the system on in the cooling mode. This will make the outdoor coil the condenser section. Then, either block the airflow through the coils with an object, put an object over the fan to increase pressure, or if you can, disconnect the fan so it does not run. This method is essentially the same as a defrost cycle.

As with any failure, you can fix the problem at hand, but it will return. After you get past this, your real challenge will be determining what caused the freeze-up.


If you were running your system in cooling already, then you will need to ensure the system has de-iced on the inside as well.

Jan 12, 2010 | Heating & Cooling

2 Answers

Carrier 38CKC042300. oUTSIDE UNIT FAN WAS TURNING REAL SLOW. ac UNIT IS OFF BUT FAN TO OUTSIDE UNIT IS STILL TURNING. sHOULD NOT BE TURNING AT ALL WITH AC UNIT OFF


The outside fan may run if the unit is in defrost mode this is normal for most heat pumps it is there way of trying to keep the outside unit from staying iced over so the next time the unit runs it will have air flow through the coil and the ice will not be there to prevent air flow.

Jan 12, 2010 | Carrier 38CKC042 Air Conditioner

2 Answers

Is it normal for fan on outside unit to be on while on heat mode


Yes, it is normal with a heatpump, you run the outside unit in cooling and heating.
It is also normal when the outside unit goes into defrost for the outdoor fan to shut off during the defrost mode and to see steam coming out of the outside unit, while it's melting the frost or ice, then the fan will come back on.

Jan 06, 2010 | Carrier XHB123D X/Y Series Heat/Cool Air...

3 Answers

Goodman package- no heat below 30 degrees outside


I believe the unit you are describing is a heat pump. Heat pump are great when the temperature isn't below 30 With low ambient temps. outside it is much more efficient and comfortable to run aux. electric heat from the heat pump.

Jan 03, 2010 | Goodman PHKJ048-1 Air Conditioner

1 Answer

I need to know where i can get a manual on how to set the remote controll for the air conditioner. right now we are turn them on and off every day or when it gets to hot or to cold. i would like to set...


If its for the unit pictured go to http://service.airwell.com.au/airwellsanyoparts/Website%202007%20update/airwell/XV26RCA/ and click on operation instructions.doc. Even though this is an airwell manual, they both use the same control.
Hope this helps
Mat

Jul 15, 2009 | Sanyo 18KHS72 Air Conditioner

1 Answer

Ice build up out side hitting fan


pop out drain plug heat up pan with heat gun to melt ice

Nov 24, 2008 | GE Zoneline AZ38H12DAD Split System Air...

1 Answer

Out side unit will not go into defrost cycle


most likely a bad temp sensor on the outdoor coil. you are seeing ice so its cold enough to defrost but the sensor is not seeing ice so it doesn't. usually a generic 3/8 or 1/2 clamp on sensor will fix. you can freeze the sensor with a little r22 and it should close and fall into defrost or jump it and it has to proof closed and the unit should defrost. if you jump it you may have to speed up the board to diagnose. usually jumping test pins together throws it into a 5 sec in 20 seconds out cycle. kind of like turning a 24 hour days into 24 seconds. or to protect the board you can just find the sensor pull it, replace it and watch what happens next cold night. good luck

Nov 10, 2008 | Intertherm P3RA-048K Air Conditioner

Not finding what you are looking for?
Heating & Cooling Logo

Related Topics:

33 people viewed this question

Ask a Question

Usually answered in minutes!

Top Heating & Cooling Experts

paulcarew

Level 3 Expert

2458 Answers

Dan Webster
Dan Webster

Level 3 Expert

8220 Answers

Donni Steen

Level 3 Expert

659 Answers

Are you a Heating and Cooling Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...