Troubleshooting Guide

SPLIT AIR CONDITIONERS AND HEAT PUMPS

  • Check to make sure that your thermostat is set in the “cool” position.
  • Ensure that your outdoor air conditioning (condensing unit) is running: Check the circuit breakers in the circuit breaker box (or electrical panel), most likely mounted to an outside wall in the back of the house. Are they in the “On” position?
  • Check the outdoor unit “disconnect switch” to make sure it is in the “ON” position. The disconnect switch is located near the outdoor unit. (Typically a grey 8″ wide x 16″ high x 4″ deep box mounted to the wall).
  • Ensure that the blower motor in your furnace is running. (If the thermostat is in the “cool” position, the furnace blower should be running.)
  • If not, check to make sure the on / off switch at the furnace is in the “ON” position
  • Be sure that you have changed the filter in your furnace recently.
  • An extremely blocked filter can cause your outdoor air conditioner unit to shut down due to lack of proper airflow.
  • Your filter should be changed every month.
  • Check all return air grilles to make sure they are not blocked by furniture.
  • Check all supply air registers to make sure they are open and blowing air. (The return air grilles are normally located on your walls and are wide and flat).

 

GAS AND ELECTRICAL FURNACES

  • Check to make sure that your thermostat is set in the “heat” position
  • Make sure that the temperature setting on the thermostat is set above (or higher than) the indoor temperature showing on the thermostat. This tells your heating system that it should provide heat!
  • Ensure that there is power in the furnace:
  • Try switching on the fan using the fan switch on the thermostat.
  • Check the circuit breakers at the electrical panel to make sure they are in the “On” position.
  • Check the SSU switch (it looks like a light switch in a gray box on the furnace) to make sure it is in the “ON” position
  • Replace the furnace filter if needed.
  • All 1” thick furnace filters should be replaced monthly.
  • Purolator 2” thick and other high-capacity pleated filters can usually be changed every other month or just 6 times per year.
  • If the system is running but you have not changed your filter, the filter may still need to be replaced.
  • Check all return air grilles to make sure they are not blocked by furniture.
  • Check all supply air registers to make sure they are open and blowing air. (The return air grilles are normally located on your walls and are wide and flat).

If these simple solutions do not solve your problem, contact us for service. Be sure to have your model number handy.

 

Ask Our HVAC Experts!

Call (416) 780-9760 Now!


    People like you shared their purchase and installation experience!

    David TsuchiyaDavid Tsuchiya

    I had my tankless water heater replaced through Cozy Comfort Plus. Brian was very helpful and his technician did his best to ensure the new model would fit the tight nook that the original one was in. The team installed the new heater quickly and ensured the location was clean afterwards. Overall, I was very satisfied with the installation and service.

    Read More
    Jeffrey HoffmanJeffrey Hoffman

    From installation to maintenance, Cozy Comfort Plus Inc. provided us with prompt, quality service. It took under a day to install our Mitsubishi split-type air conditioner in May, 2021. This week, they attended to cleaning our unit’s filters in less than a day’s notice. The technician explained how to remove, clean and reinstall the filters ourselves which will save us money down the road. I highly recommend Cozy Comfort without reservation.

    Read More
    Maria LeitaoMaria Leitao

    Maury from Cozy Comfort did a fantastic job of examining the functionality of my furnace and cleaning the major components. He tested my furnace to make sure that it would run efficiently in the winter. My humidifier was cleaned, the drip pad replaced and settings properly set up. Thank you Maury for your effective care. thank you Cozy Comfort- you are a company that has proven your worth over the past 25 years that you have looked after my family's heating and cooling needs.

    Read More