$49 / month O.A.C Including Install
$49 / month O.A.C Including Install

24 / 7 Emergency Service Available. Call Us Now: 1.844.894.6832

Durham Region Air Conditioning Repair, Service and Installation

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The Comfort Control can alert the homeowner and installer to problems with the HVAC equipment or Comfort Control by using error codes. When displaying an Error Code, the screen will display "Err" and a bright red light will appear in the top-right corner of the comfort control.


CODE: Green light on, slow flashing, or fast flashing.
RESULT: Unit is operating normally.

CODE: Amber light on.
RESULT: Unit requires refrigerant.

CODE: Red 1 flash.
RESULT: Communication error.

CODE: Red 2, 3, and 4 flashes.
RESULT: Defrost fault.

CODE: Red 5 flashes.
RESULT: Fault with the ambient temperature sensor.

CODE: Red 6 flashes.
RESULT: Fault with the coil temperature sensor.

CODE: Red 7 flashes.
RESULT: Low-pressure problem.

CODE: Red 13 flashes.
RESULT: Fault with the external temperature sensor.

CODE: Red 17 flashes.
RESULT: High-pressure problem.


See What Our Customers Are Saying:

by Robert Rogers on Twintech Heating and Cooling

Very pleased with the professional service that TwinTech Heating and Cooling provided in replacing my furnace. I got several quotes from different service providers. Their price was excellent and they explained the features very well. We are very glad we went with TwinTech and highly recommend their services.

by Robert Mizuno on Twintech Heating and Cooling

We were new homeowners in need of a second opinion. TwinTech Heating & Cooling were Amazing and professional. Very knowledgeable and great service all around. Recommend to anyone looking for honest and reliable services. Treated with respect and care. Thank you Greg, Mitch and Bob!

by Ruth on Twintech Heating and Cooling

TwinTech is an excellent and honest company! I called them for a second opinion after being told by another company that I needed to replace my furnace. Turns out this was not the case at all! I did not need a new furnace. TwinTech did not push to make an unnecessary sale and saved me from a huge expense. Bob and Mitch were extremely professional and above all honest! I definitely recommend TwinTech!

by Anna Chin on Twintech Heating and Cooling

Amazing experience with TwinTech Heating & Cooling! Their team was professional, knowledgeable, and efficient from start to finish. They installed my new furnace quickly and left everything spotless. The technicians took the time to explain everything and made sure I was comfortable with the system before they left. Great customer service and fair pricing. I highly recommend them for anyone needing HVAC services!

by Connor Agnew on Twintech Heating and Cooling

Great experience all around. Bob was sharp and easy to talk to, and Greg handled the installation perfectly. Would hire them again in a heartbeat.

by Trevor Owens on Twintech Heating and Cooling

I returned from vacation to find my AC unit on the Fritz. After calling way too many places I connected with TwinTech. I’ve used the company in the past for my furnace so I was happy when I recognized Greg at my front door. He’s great and the service is always top notch. I’d highly recommend using twintech for honest, superior service in the Durham region. Thanks!

by Nicole Alain on Twintech Heating and Cooling

I called Twin Tech when my air conditioning stopped working. Greg came over to diagnose the issue - the same day. He was able to diagnose the issue and resolve it quite quickly. Although it was a quick fix, Greg was very thorough in explaining the issue and provided great advice. Not to mention, I felt very comfortable having Greg in my home - which I consider very important when hiring a service provider. Twin Tech will be my go-to from now on. Thank you!!

by Courtney Parkes on Twintech Heating and Cooling

Just hired TwinTech Heating & Cooling to do an A/C Unit removal & reinstall to allow for landscaping access on the side of my house, and they were wonderful!
Bob, Greg & Mitch make a great team! Quick appointment times, super knowledgeable, expert troubleshooting capabilities & very customer service oriented.
I would highly recommend them for all of your HVAC needs! Great job guys!!

by Jacqueline Graham on Twintech Heating and Cooling

Twintech Heating & Cooling installed my furnace in 2022 and in fall of 2023 installed my Panasonic Heat Pump. Greg and Mitch did a great job. Helped me through the rebate process. Super happy with the Heat Pump. Only used my furnace 5 times this winter. Energy bills lower, carbon emissions lower.Thank you Twintech. I recommend highly!

by Bill Grainger on Twintech Heating and Cooling

Just had a new furnace installed by Twintech. I can’t express how great these guys are at what they do. From the sales to installation they were professional all the way. Very reasonable pricing and courteous during the installation and willing to answer any questions I had. Highly recommended !!!

See What Our Customers Are Saying:

by Robert Rogers on Twintech Heating and Cooling

Very pleased with the professional service that TwinTech Heating and Cooling provided in replacing my furnace. I got several quotes from different service providers. Their price was excellent and they explained the features very well. We are very glad we went with TwinTech and highly recommend their services.

by Robert Mizuno on Twintech Heating and Cooling

We were new homeowners in need of a second opinion. TwinTech Heating & Cooling were Amazing and professional. Very knowledgeable and great service all around. Recommend to anyone looking for honest and reliable services. Treated with respect and care. Thank you Greg, Mitch and Bob!

by Ruth on Twintech Heating and Cooling

TwinTech is an excellent and honest company! I called them for a second opinion after being told by another company that I needed to replace my furnace. Turns out this was not the case at all! I did not need a new furnace. TwinTech did not push to make an unnecessary sale and saved me from a huge expense. Bob and Mitch were extremely professional and above all honest! I definitely recommend TwinTech!

by Anna Chin on Twintech Heating and Cooling

Amazing experience with TwinTech Heating & Cooling! Their team was professional, knowledgeable, and efficient from start to finish. They installed my new furnace quickly and left everything spotless. The technicians took the time to explain everything and made sure I was comfortable with the system before they left. Great customer service and fair pricing. I highly recommend them for anyone needing HVAC services!

by Connor Agnew on Twintech Heating and Cooling

Great experience all around. Bob was sharp and easy to talk to, and Greg handled the installation perfectly. Would hire them again in a heartbeat.

Twintech: General HVAC Repair and Maintenance

  • SUBMITTED BY:
  • TWINTECH HEATING & COOLING
  • - November 17, 2024

Twintech is your trusted partner for all your HVAC repair and maintenance needs. With years of experience and a commitment to exceptional service, we ensure your heating, ventilation, and air conditioning systems operate efficiently and reliably year

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Cost Savings with Heat Pumps

  • SUBMITTED BY:
  • TWINTECH HEATING & COOLING
  • - May 4, 2025

Cost Savings with Heat Pumps Brought to you by Twintech Heating & Cooling If you're looking for a reliable way to reduce your monthly energy bills without compromising comfort, a heat pump might be the solution. At Twintech Heating &

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Expert Heat Pump Installation in Oshawa

  • SUBMITTED BY:
  • TWINTECH HEATING & COOLING
  • - April 14, 2025

Expert Heat Pump Installation in Oshawa - Twintech Heating & Cooling If you're looking for reliable and energy-efficient heat pump installation in Oshawa, look no further than Twintech Heating & Cooling. As a trusted name in the HVA

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36 Year Old AC Unit Question

  • SUBMITTED BY:
  • TWINTECH HEATING & COOLING
  • - April 16, 2023

I have a 36 year old Luxaire AC unit that needs to be replaced. It has never leaked -- but the compressor is giving out. (new relay, new capacitors, newer air handler) The compressor has been on it's last legs the last couple of years but a

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