Question about Heating & Cooling

1 Answer

My Dimplex DAC12AC aircooler is blowing out hot air

When you turn the air cooler on it blows out room temp air rather than cool air. I have tried to put the cooler all the way down to 17c but it still just blows hot air and i have no idea why. Oh and when it has been running for more than 30mins an E3 symbol comes up

Posted by on

  • 1 more comment 
  • Anonymous Jun 05, 2008

    I have changed my filter.  My Air conditioner is blowing hot air what do you think the problem can be I got a new condenser 3 yrs ago.

  • k_robinson44 Jun 26, 2008

    i can't

  • ultraseal Jan 24, 2009

    i have `same problem with delonghi pac`40.....potrable air conditioner what would it cost to repair?



1 Answer

  • Level 1:

    An expert who has achieved level 1.


    An expert who has answered 20 questions.


    An expert that has over 10 points.


    An expert whose answer got voted for 2 times.

  • Contributor
  • 26 Answers

Hi,its possible have a problem your PCB Board ,the 17c is so cool setting but blows hot , and the E3 simble its min High Cooling , pls check ur PCB board to the nearest service center.

Posted on Jan 12, 2008


1 Suggested Answer

  • 2 Answers

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

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.
Good luck!

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


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



Related Questions:

1 Answer

01 silverado. Not blowing hot air but yet temp gauge is at half way mark?

When the truck is at operating temperature, touch both heater hoses. More than likely one is much cooler than the other. If so then alter truck cools off remove both hoses at water pump and blow thru one until it flows freely. If both hoses are the same temp (pretty warm/hot) then the blend door actuator has gone bad. Be sure to purge cooling system if heater hoses are removed, an air pocket will cause weak heating and and engine temp. fluctuations.

Feb 13, 2015 | Cars & Trucks

1 Answer

Honeywell 97-4118/5-89

probably low on freon. i assume compressor is running?

Jan 25, 2014 | Honeywell ER150B Air Conditioner

1 Answer


Find a reputable HVAC contractor to do a room by room analysis with heat and cooling loads calculated and units sized and duct requirements and compare to what you have.

The air not being cold is not necessarily an indicator of anything malfunctioning. High efficiency units for instance don't produce cold air.

Since you have had someone look at it, the duct work may be collapsed which restricts air flow or uninsulated which warms up the supply air. Either one is a possibility. Any Cox Cable guys been stompin' around your attic lately? Wouldn't be the first time.

Usually, when the air coming out of the vents is not cold enuf it's because your freon level is low. Probably leaking, but they can usually recharge the freon and it will work for a while. Try another repair company and see if they can recheck the freon level.

We have a high efficiency unit and it produces cold air, so I don't know what previous poster is referring to. Air conditioners are supposed to blow cold air.

Sorry, to tell ya but it is normal if the outdoor temperatures are much below 45 degrees. Below 45 degrees there is little heat outdoors for the heat pump to grab to heat the home so it will run 24/7 and blow cool or cold air. Below 45 the temp of the air coming out the vent will decline and you will get no heat from the heat pump itself as you near freezing.

Your emergency heat or auxiliary heat is electric strip heat. But it only kicks in during normal operation if the temp in the house drops 3 degrees below the setting. (some tstats if can be 5 deg.) Otherwise the heat pump will blow cool or cold air the rest of the time if it is too cold out.

To prevent it from running all the time and blowing cold it is recommended if the temp outside is falling below 45 degrees you should just switch to the emergency heat setting, which shuts the pump outdoors off, and just heat with the electric.

But if there is no heat outside the heat pumps will blow cold. They are the cheapest and most efficient forms of heat but only as long as the outdoor temp is above that 45 deg..

I'm guessing that if you haven't experienced this you live in some place with moderate winter temperatures like in Northern Florida and rarely get very cold winter temps like the freezing you have seen there recently.

It will likely blow much warmer when the outdoor temp rises.

Aug 02, 2010 | Heating & Cooling

2 Answers

Problem with mitsubishi air roof units

to tricked the thermostat only a way i know,to put on it an ice cube for a while.propably wrong choice to installed roof unit you must installed to the floor better for the ac and to you

Dec 13, 2008 | Mitsubishi Mr. Slim MXZ30TN Air...

1 Answer

Heaterblows cool air my temp gauge showing truck is overheating

change the thermostate and gasket after you change it let the truck heat up then cool then refill the radiator again after the thermostate opens do not open the radiaator with the truck hot or the upper hose hard

Dec 10, 2008 | 1992 Ford Explorer

1 Answer


Again, if your model is one that can be used in cooler temps so as not to ice up, the heat prevents this.

Aug 07, 2008 | Maytag M7DH45B2A Dehumidifier

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

Related Topics:

538 people viewed this question

Ask a Question

Usually answered in minutes!

Top Heating & Cooling Experts

Paul Carew

Level 3 Expert

3162 Answers

Dan Webster
Dan Webster

Level 3 Expert

8220 Answers

Tim Whalen

Level 3 Expert

3074 Answers

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

Answer questions

Manuals & User Guides