Durham Region Air Conditioning Repair, Service and Installation
The flashing LEDs on your furnace will correspond to a specific fault code that is shown here on their diagnostic chart.
If you have a Trane furnace, then you have one of the most reliable heating systems in existence. However, even the most reliable furnace runs into problems from time to time, and this is why your Trane has included several error codes to help you find a given issue. However, if you're unfamiliar with error codes for furnaces, then you may be unaware of what these codes mean.
To get peace of mind, it's important that you take a look at typical Trane furnace error codes to you learn what these error codes mean so you can get your system the service it needs.
CODE: Flashing Slow
RESULT: Normal no call for heat.
FIX: This is only an issue if you have raised your thermostat and your furnace doesn't respond.
RESULT: Normal no call for heat.
FIX: This is only an issue if you have raised your thermostat and your furnace doesn't respond.
CODE: Flashing Fast
RESULT: Normal call for heat.
FIX: Only beware this if your furnace is continuously calling for heat and isn't responding to your thermostat..
RESULT: Normal call for heat.
FIX: Only beware this if your furnace is continuously calling for heat and isn't responding to your thermostat..
CODE: Continuous On
RESULT: Control panel issue.
FIX: Replace Control Panel.
RESULT: Control panel issue.
FIX: Replace Control Panel.
CODE: Continuous Off
RESULT: Check Power.
FIX: Check Power.
RESULT: Check Power.
FIX: Check Power.
CODE: 2 Flashes
RESULT: External Lockout (Retried or recycles exceeded).
FIX: Check for miswiring, clogged pilot tube, or humidity in the unit.
RESULT: External Lockout (Retried or recycles exceeded).
FIX: Check for miswiring, clogged pilot tube, or humidity in the unit.
CODE: 3 Flashes
RESULT: Pressure Switch error.
FIX: Check if the drain tubes are full of moisture or obstructed with dirt.
RESULT: Pressure Switch error.
FIX: Check if the drain tubes are full of moisture or obstructed with dirt.
CODE: 4 Flashes
RESULT: Open high limit device.
FIX: The issue with thermal protection.
RESULT: Open high limit device.
FIX: The issue with thermal protection.
CODE: 5 Flashes
RESULT: Flame sensed when NO flame should be present.
FIX: Check for a leaky gas valve, stuck gas valve, or defective flame sensor.
RESULT: Flame sensed when NO flame should be present.
FIX: Check for a leaky gas valve, stuck gas valve, or defective flame sensor.
CODE: 6 Flashes
RESULT: 115 VAC power reversed polarity or poor grounding.
FIX: Correct line voltage polarity, check the wiring.
RESULT: 115 VAC power reversed polarity or poor grounding.
FIX: Correct line voltage polarity, check the wiring.
CODE: 7 Flashes
RESULT: Gas Valve circuit error.
FIX: Check your unit's gas valves for the issue.
RESULT: Gas Valve circuit error.
FIX: Check your unit's gas valves for the issue.
CODE: 8 Flashes
RESULT: Low Flame sens signal.
FIX: Check for flame sensor malfunction or low gas pressure.
RESULT: Low Flame sens signal.
FIX: Check for flame sensor malfunction or low gas pressure.
CODE: 9 Flashes
RESULT: Check Igniter.
FIX: Check igniter.
RESULT: Check Igniter.
FIX: Check igniter.
See What Our Customers Are Saying:
Jul 28, 2022
On coldest night of the year our furnace quit. At 8:40 in the morning Greg arrived and gave us a diagnosis and a recommendation. By 2:30 we had a new furnace and were warm again. Great company. Great customer service. Good reasonable price.
Peter, Pickering
Jul 3, 2022
Twin tech team was very efficient and prompt. They provided a quote within hours of request and got the job done on time. No disruption to home function. We would highly recommend this team. Job well done.
Jul 3, 2022
Our furnace bit the dust, and Twintech came out to troubleshoot and diagnose the problem within a couple of hours. Mitch was super helpful, patient, and answered all of our questions. When we decided to get the furnace replaced, the crew was over first thing the next morning and did a fantastic job. Not only did they complete the job in a few hours, but they cleaned up and respected our house as they went, and answered all of our follow-up questions. I've used Twintech for our HVAC needs in the past and will continue to do so. I'd recommend them to anyone, and it feels good to support a local, family-owned business.
Jul 3, 2022
Dave and the Twintech team were fabulous from day 1 and helped us through the process to identifying a new furnace and AC unit. This was our first time through this process and Dave did a thorough job explaining all the components and was very patience answering all our questions. Dave provided great insights and fair pricing.
The Twintech team did an awesome installation. Very clean and efficient. I would highly recommended their service.
Jul 3, 2022
We had a new Amana furnace installed by Twintech and we were very pleased with the installation. It is nice to have a warm house again.
Jul 3, 2022
Excellent job. Excellent service. Competitive price. Its rare to find a company with the knowledge and professional results we have experienced with Twintech. The clean and neat installation with attention to detail and drop sheers to respect our property is a clear indication of Twintechs high level of integrity. The 1-1/2 gas line upgrade they did for our pool 3 years ago was awesome. Can't say enough. Thank-you Twintech.
Jul 3, 2022
Twitch did a great job with the installation of our new furnace. I really appreciated their honesty and I could trust what they were telling me. Another company tried to suggest significantly more work at a greater cost claiming it was necessary to meet current building code. Twintech is very fair. All staff I meet were friendly, polite and trustworthy. I would recommend Twitch for a furnace.
Jul 3, 2022
This is a professional team that's easy to deal with. I would strongly recommend them
Jul 3, 2022
Very professional firm from start to finish!
They removed the old oil tank and furnace. They installed air conditioning and a new propane furnace.
Professional installation, on time and no mess.
Very pleased with their work and would highly recommend the company. Our house is three stories so they spent the time to do all the calculations to make sure we would have great performance on each floor.
Thank you again!
Jul 3, 2022
Upon a routine yearly maintenance, it was discovered there was a leak in the heat exchanger and a I needed a new furnace. I know nothing about these things and was completely stressed out. The company I had the maintenance plan with quoted me a huge number to rent a furnace, I just wanted to cry. Then I spoke to Dave at Twintech. He was so knowledgeable and calming, provided me a fair quote and within a few days I had an amazing crew show up to my house and install my new energy efficient furnace! I have already recommended these wonderful people at Twintech to a good friend of mine. Thank you Twintech!!