How to tell if your Central Air Conditioner needs refrigerant refill

Freon is the term used by most everyone to refer to the refrigerant, or coolant, used in many things, from home air conditioner, cooling system in your car, to refrigerators.

So, the air conditioners need refrigerant to cool the air. If there is not enough or too little refrigerant, it will cause air conditioner blow warm air. Technically, refrigerant can last a lifetime, but certain circumstances can cause issues with the coolant supply. It can be due to age of the air conditioner, its wear and tear or accidental damage.

Here are the signs your AC is low on refrigerant:

Your AC is taking longer than normal to cool the home. Refrigerant absorbs the heat in your air. Without enough of it, your air conditioner can’t absorb enough heat to cool the air well.

Ice has built up on copper lines from a/c to indoor coil. If coolant levels are low, the air conditioner’s evaporator coil tends to get too cold, which causes cool refrigerant to flow back the coolant line. This is what causes the ice buildup.

Unusually high electric bills. An air conditioner that’s low on refrigerant has to work much harder to cool down your home, causing the unit to consume more energy.


At DeMark Home Ontario you can learn more about air conditioner costs, efficiency levels, manufactory specifications and the various brands that are available on the market. You can also schedule a free in home assessment with us on your existing equipment to see which replacement options are available for you to choose from. If purchasing a new air conditioner isn’t in your budget we also offer flexible financing and rent to own options to our customers. Call us at 647-847-2998 or submit your request online and one of our friendly representatives will be happy to assist you.

Easy Rentals...

get total piece of mind with our High Efficiency Furnace and Air Conditioner Rental Program.
Customer Rating of 5.0
based on 41 Google reviews

  • Get A Quote Today! Free in-home estimate!
  • This field is for validation purposes and should be left unchanged.

Upgrading to a high-efficiency heating and cooling system offers more than energy savings.

Take advantage of these rebates today!


This item comes with absolutely free standard installation. We’ll ensure that the product is completely installed to code and fully functioning prior to leaving.


Great news! Receive a brand new digital thermostat absolutely free when renting this HVAC product from DeMark Home Ontario.


Great news! When renting a furnace or air conditioner, you’ll get your first 2 months absolutely rent free.


Great news! When renting a furnace and air conditioner together, you’ll get your first 3 months absolutely rent free.


This product carries a manufacturer warranty and we’re happy to explain it in full to you. Feel free to get in touch with us for more information or see the Warranty Information tab for more information


If your order is placed and confirmed by 11am, we can have your HVAC product installed within the same day.

Certain conditions apply, not available on all products.


This water heater is subject to reduced rental rates based on the DHO discount program. Save money on your bill every single month!

Some conditions apply


Save money on this item when buying it along with a qualifying high-efficiency furnace or air conditioner.

Some conditions apply


Great news! When renting a qualifying water heater, you’ll get your first 2 months absolutely rent free.


Promotional code can be found on the eFlyer, Brochure or promotional email that you received from us.

*If you are an existing customer please refer to the mail or email that was sent to you after the installation of your equipment as it contains your promotional code. If you are having troubles locating it please call us and one of our Customer Service Representatives will be happy to assist you.

  • Please fill out the form below in order to schedule service and be sure that your request will be processed promptly and you will hear back from us shortly.

Notice for Power Vent Water Heater Customers

Effective August 2007, gas code requires technicians working on venting to replace black ABS vent pipe with white UL-certified vent pipe.

We will upgrade your venting pipes at no additional cost.

  • Forum Registration

  • Forum Rules

    Registration to this forum is free!
    You must abide by the rules and policies detailed below. If you agree to the terms, please check the 'I agree' checkbox and press the 'Register' button below.

    Although the administrators and moderators of DeMark Home Ontario Forum will attempt to keep all objectionable messages off this forum, it is impossible for us to review all messages. All messages express the views of the author, and DeMark Home is not responsible for the content of any message.

    By agreeing to these rules, you warrant that you will not post any messages that are obscene, vulgar, sexually-oriented, hateful, threatening, or otherwise violative of any laws.

    The owners of DeMark Home Ontario Inc reserve the right to remove, edit, move or close any thread for any reason.


Do NOT follow this link or you will be banned from the site!

Send this to a friend