What do you do when your heater blows out cold air?

If your system is blowing cold air when it should be hot, there may be several different causes. These can include:

It’s possible that the pilot light has shut off. If you have a newer unit with an electronic pilot light, but with older models, you may need to re-light the pilot light safely
The flame sensor within your furnace may need to be reset by turning the heating unit off and on. In some cases, the flame sensor may be dirty, if so, call a technician to handle the job as this involves opening up the gas burner which if done wrong, could damage your unit
You may have a clogged or dirty filter making it difficult for the air to enter the chamber properly. Always check your filter’s size before changing it

If the above issues don’t seem to be the cause, call in a heating expert. Poking around in your system to try a DIY fix can be dangerous, and you could cause more damage, which is expensive and time-consuming to repair.

Please visit our heating service page to book in a service

What Our Customers Are Saying

Excellent service & workmanship

This is my second system that Coldflow have installed and I'm very happy with the result.
2 head air conditioning system installation was quick and tidy. Even though the cassettes are more complicated and involved to install. All the guys cleaned up after themselves and took all the rubbish away. Excellent service and workmanship, even when it rained and then heat (it's Melbourne).
System work a treat, just waiting for the heatwave to arrive. Great work by the team.

Ralph Braun - Google Reviews
Again, very happy with the service

I was extremely happy with the service provided by Coldflow.
I had a ducted cooling system installed. The team turned up on time and completed the job the same day. The guys were courteous and completed the job with a minimum of fuss and disruption. The workmanship was excellent and all ducts were located as per our agreement. They placed drop sheets wherever required and cleaned up after completion. Again was very happy with the service provided by all the crew.

George Spiliopoulos - Google Reviews
Recommended already to friends

Replaced gas ducted unit. Installation was the perfect I have ever seen and the installers cleanup and did more than they were suppose to do. Customer service focused and really good company to work with. Have also got my cooling installed from them last year, so recommended already to friends and to anyone needing Heating and Cooling

Praveen Viswanathan - Google Reviews
I highly recommend Coldflow and would use them again

From my first conversation with a consultant, I felt confident that Coldflow had the experience and knowledge I was looking for. I was thrilled with the level of customer service I received and follow up from them. The installers were professional and helpful and on time. I am very happy with the evaporative cooling unit we chose, thanks to the assistance and guidance of our consultant. I highly recommend Coldflow and would use them again.

Benita Aaltonen - Google Reviews
Sales consultant understood what i wanted with no pressure

Very good service. David the Sales consultant understood what i wanted with no pressure, and was patient. Installers were friendly. Had one one problem with controller, but they have back the next day and was promptly fixed. Thanks again

Beth Grace - Google Reviews
Very good service, very happy with my heating & cooling

Thanks to Craig at Coldflow. He listened to me, about how cold and hot certain rooms were. Other companies just tried to sell me what they wanted. Very good service, very happy with my heating and cooling.

Rania NG - Google Reviews