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

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Durham Region Air Conditioning Repair, Service and Installation

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If you're looking for help fixing your Ducane Furnace, look no further! Our comprehensive Ducane Furnace repair guide will explain common issues, provide troubleshooting tips, and show you how to read your model's error codes.


CODE: LED off.
RESULT: No power to control or control hardware fault detected.

CODE: LED on.
RESULT: Normal operation.

CODE: 1 Flash.
RESULT: Flame present with gas valve off.

CODE: 2 Flashes.
RESULT: Pressure switch closed with inducer off.

CODE: 3 Flashes.
RESULT: Low fire pressure, rollout or aux limit switch open.

CODE: 4 Flashes.
RESULT: High limit switch open.

CODE: 5 Flashes.
RESULT: Not used.

CODE: 6 Flashes.
RESULT: Pressure switch cycle lockout.

CODE: 7 Flashes.
RESULT: Lockout due to no ignition.

CODE: 8 Flashes.
RESULT: Lockout due to too many flame dropouts.

CODE: 9 Flashes.
RESULT: Incorrect polarity and phasing.

High Heat State-Green LED

CODE: LED off.
RESULT: No demand for high heat.

CODE: LED on.
RESULT: High heat demand, operating normally.

CODE: LED flashing.
RESULT: High heat demand, high pressure switch not closed.


See What Our Customers Are Saying:

by Floreene in Whitby on Twintech Heating and Cooling

My old furnace had finally broken down for the last time when contacted twintech to have a new furnace installed…They were prompt, knowledgeable and very reasonably priced. They did such a great job i tell all my friends and family about this company.

by Damien McIsaac. Ajax on Twintech Heating and Cooling

To whom it may concern, I recently had TwinTech (Greg and Grant Dainty) replace my furnace and service both my gas fireplaces and air conditioning unit. They were professional, courteous and very fair in their pricing. I would gladly recommend TwinTech to anyone needing work done. I can be contacted at 905-626-XXXX.

by Blair N. - Toronto on Twintech Heating and Cooling

My Fiancé and I have relied on Twintech Heating and Cooling now for the better part of the last 10 years. In that time, Greg has installed a furnace, an air conditioner, and a heat-pump at our residence in Toronto. In each instance Greg and his team were a pleasure to deal with. They were courteous and professional throughout the whole process and the quality of their work is first rate. Our experiences have always been extremely positive and we have referred his services numerous times to our friends and family. Without hesitation, I would recommend Greg and TwinTech Heating and Cooling to anyone looking to service or replace their existing heat/AC equipment

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.

Taking Full Advantage of Your Furnace This Winter

  • SUBMITTED BY:
  • TWINTECH HEATING & COOLING
  • - November 11, 2024

Using your furnace effectively can keep you warm while saving energy and reducing costs. Here are some tips for maximizing your furnace’s efficiency: 1. Schedule a Tune-Up Regular maintenance ensures your furnace runs efficiently. A profe

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  • SUBMITTED BY:
  • TWINTECH HEATING & COOLING
  • - November 26, 2024

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  • SUBMITTED BY:
  • TWINTECH HEATING & COOLING
  • - June 14, 2024

Air conditioning (AC) systems can develop various kinds of leaks, each of which can impact the efficiency and performance of the unit. Here are some common types of AC leaks: 1. Refrigerant Leaks Refrigerant leaks are the most common and seriou

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  • SUBMITTED BY:
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When it comes to dependable, energy-efficient home comfort, Amana heat pumps stand out as one of the top choices in the HVAC industry. Designed with American-made quality, innovative technology, and homeowner comfort in mind, Amana heat pumps deli

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