Question about Heating & Cooling

2 Answers

My air conditioning unit is not blowing as cold as it did, nor is it blowing as hot as it did in the heating mode

Posted by on

2 Answers

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that got 5 achievements.

    Novelist:

    An expert who has written 50 answers of more than 400 characters.

    Governor:

    An expert whose answer got voted for 20 times.

  • Expert
  • 124 Answers

90 percent of the time the freon charge is low and lack of freon lessens the amount of compressed heat that can be created and also the amount of heat that can be extracted. hence less cooling and less heating. however the exact same thing can occur when a change over valve gets stuck partially between heat and cool . it then mixes the hot and cold together and you get poor cooling and poor heating. you check it with a gage. fed law requires that you have an epa certification to apply a gage. low pressures in heat and cool on both high and low pressure gages are a sign of low charge. if low pressure and high pressure are close to the same on both gages then a good chance valve is stuck half way between. you can also sometimes check by feel . at the change over valve two lines should be virtually to hot to touch and two should be cold to the touch. one is heating flow and other is cooling flow. if the valve is stuck then temps will be within a few degrees of the same on all. low charge and the hot lines won't be hot hardly .and the cold line s barely cool. look for white frost forming in the heat mode outside at the condensor tubing shortly after you turn on the heat. thats a sign of low charge. good luck.

Posted on Nov 04, 2008

  • Level 1:

    An expert who has achieved level 1.

    MVP:

    An expert that got 5 achievements.

    Scholar:

    An expert who has written 20 answers of more than 400 characters.

    Hot-Shot:

    An expert who has answered 20 questions.

  • Contributor
  • 40 Answers

Is your unit a "WINDOW" unit or a "CENTRAL, SPLIT SYSTEM" UNIT? If your unit is a "WINDOW" or "PORTABLE" unit, then it could simply be the COILS need to be cleaned. If it is a "CENTRAL, SPLIT SYSTEM UNIT" then it could be your FILTER needs to be REPLACED ... or it could be that your INDOOR and/or OUTDOOR COILS need to be CLEANED ... or it could be that your FREON CHARGE is either LOW or OVERCHARGED ... or it could be a problem with your RETURN AIR duct (sucking in exterior air somewhere) ... these are the MOST COMMON problems causing a unit not to cool properly. Good Luck!!!

Posted on Sep 20, 2012

1 Suggested Answer

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

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

My Honeywell thermostat isnt keeping my house cool even though the temp is set to 69. Currently 90 degrees in here


Its probably not the thermostat. The air conditioner may be stuck on heating mode. If its a reverse cycle, the reversing valve may be jammed so even when the thermostat is calling for cold air, it stays on heat. If the machine is on heating mode, it should be blowing cold air out of the outdoor unit of the air con. If its on cooling mode, the outdoor should be blowing hot air.

Apr 12, 2015 | Honeywell Heat/Cool Thermostat

2 Answers

Goodman minisplit flashes on pre. Def. Wont start


You have to try resetting the system. First turn the breaker off for the condenser and wait about 20 seconds. After you turn it back on the system should reset.


Air Conditioning Repair Tamarac

Apr 07, 2015 | Goodman Heating & Cooling

1 Answer

Heat and air conditioning does not work.


say what dont work.
ok the blower blows, and for sure on high.
so what do you want , and where.
heat to cab?
cold air conditioning to cab?
does not work, ok
lets do 1. no heat to cab,
blow fuse is 1st . check all fuse. (see glove box operators guide)
if no heat:
check engine heat, is it 180F and holding
check cap heater core hose, in heat mode are both hot. ?
if both are hot you have heat to the core and is a damper failure
in the heater box (or controller)


this car is a frankencar.
Honda Passport was a badge engineered version of the Isuzu Rodeo released in 1993 and sold by Honda in the United States

Nov 29, 2013 | 1997 Honda Passport

1 Answer

Using as heater and unit is blowing cold air


A heat pump is an air conditioner that reverses its refrigerant flow. In the cooling mode, the evaporator is cold to the room and its condenser is hot. In the heating mode, a valve reverses the refrigerant flow and makes the evaporator warm and the condenser cold.

Nov 24, 2013 | Soleus 10,000 Btu Portable Ac Air...

1 Answer

The air conditioning system will only blow cold air. Regardless of the mode, I can only get cold air. Can you give me an idea on how to fix the problem? Thanks Don 615-653-3834 drcamp117@comcast.net


The air conditioning is supposed to blow only cold air. Are you trying to get the heater to blow hot air? Make sure the temperature selector is in the hot position.

Dec 19, 2010 | 2002 Buick LeSabre

1 Answer

What's going on -- Vents are blowing hot air and


It sounds like the unit is stuck in the heat mode or the thermostat switch is still on heat. If the switch is in cool then you can go to the outside unit and locate the reversing valve. It may be stuck in the heat position. You can tap it with the handle of a screwdriver but only on the ends and very lightly because if you dent it the valve will be stuck for sure. If it shifts you will hear a loud hiss as the pressure equalizes. You could also try unplugging it from the circuit board. On some units it is energized in the cool mode and on others it is energized in the heat mode.

Jun 05, 2010 | Whirlwind FH-778 Air Conditioner

1 Answer

2005 s type jag a/c quit blowing cold air suddenly .just blows hot at any setting or on auto


hi,is this a heatpump or a ac unit only...if a heatpump ,there is a valve that switchs from heat tocool mode...go outside with unit running..put hand on big copper line,if it is hot your in heat mode..if cold your in cool mode....possible stuck change over valve if a heatpump...hope this helps...good luck...michael doctor airr appl.repair..843-384-8474...if need more assitance..call..its free...good luck

Mar 26, 2010 | Heating & Cooling

2 Answers

MY HEATER BLOWS HOT AIR THEN BLOWS COLD THEN HOT THEN COLD,ICHANGED THE MOTHER BOARD, RELAY SWITCH, AND THERMOSTAT, IT IS RUN FROM A HEAT PUMP WITCH I HAD CHECKED AND IT WORKS FINE


I have a lux electric thermostat my furnace will blow out heat for about one hour to maybe three then it will start blowing cooler air,I then cut it off for thirty seconds or longer once I do that it will start blowing out heat again then it will repeat it self again what could be the problem.

Jan 07, 2010 | Heating & Cooling

1 Answer

Uotside unit blowing cool air but hot on the inside


It sounds like you have a unit called a heat pump. When a heat pump unit is in cooling mode the outside unit blows hot air and the inside unit blows cold air. If the outside unit is blowing cold then the indoor unit is most likely blowing room temperature or warm air. It sounds like the thermostat could be controlling incorrectly or you could have a failed reversing valve which is the device that switches the unit from heating to cooling mode.

May 31, 2009 | Ruud UBHC Air Conditioner

1 Answer

We have a fujitsu air con model ast9lsbcw which blows cold air from the outside unit and the inside unit is not cooling the room.


Sounds like you have it in heating mode or it is low on charge. In cooling mode, the outside fan should blow hot air not cold.

Jul 30, 2008 | Heating & Cooling

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

Related Topics:

299 people viewed this question

Ask a Question

Usually answered in minutes!

Top Heating & Cooling Experts

paulcarew

Level 3 Expert

2179 Answers

Dan Webster
Dan Webster

Level 3 Expert

8205 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...