$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 Air Conditioner, look no further! Our comprehensive Ducane Air Conditioner repair guide will explain common issues, provide troubleshooting tips, and show you how to read your model's error codes.


CODE: POWER (Green).
RESULT: Module has power
FIX: Supply voltage is present at module terminals.

CODE: TRIP (Red).
RESULT: Thermostat demand signal Y1 is present, but the compressor is not running
FIX: 1. Compressor protector is open - Check for high head pressure - Check compressor supply voltage 2. Outdoor unit power disconnect is open 3. Compressor circuit breaker or fuse(s) is open 4. Broken wire or connector is not making contact 5. Low pressure switch open if present in system 6. Compressor contactor has failed open.

CODE: ALERT (Yellow) Flash Code 1.
RESULT: Long Run Time Compressor is running extremely long run cycles
FIX: n/a.

CODE: ALERT (Yellow) Flash Code 2.
RESULT: System Pressure Trip Discharge or suction pressure out of limits or compressor overloaded
FIX: 1. High head pressure - Check high pressure switch if present in system - Check if system is overcharged with refrigerant - Check for non-condensable in system 2. Condenser coil poor air circulation (dirty, blocked, damaged) 3. Condenser fan is not running - Check fan capacitor - Check fan wiring and connectors - Check fan motor for failure or blockage 4. Return air duct has substantial leakage 5. If low pressure switch present in system, check Flash Code 1 information.

CODE: ALERT (Yellow) Flash Code 3.
RESULT: Short Cycling Compressor is running only briefly
FIX: 1. Thermostat demand signal is intermittent 2. Time delay relay or control board defective 3. If high pressure switch present, go to Flash Code 2 information 4. If low pressure switch present, go to Flash Code 1 information.

CODE: ALERT (Yellow) Flash Code 4.
RESULT: Locked Rotor
FIX: 1. Run capacitor has failed 2. Low line voltage (contact utility if voltage at disconnect is low) - Check wiring connections 3. Excessive liquid refrigerant in compressor 4. Compressor bearing are seized 5. Measure compressor oil level.

CODE: ALERT (Yellow) Flash Code 5.
RESULT: Open Circuit
FIX: 1. Outdoor unit power disconnect is open 2. Compressor circuit breaker or fuse(s) is open 3. Compressor contactor has failed open - Check compressor contactor wiring and connectors - Check for compressor contactor failure (burned, pitted, or open) - Check wiring and connectors between supply and compressor - Check for low pilot voltage at compressor contactor coil 4. High pressure switch is open and requires manual reset 5. Open circuit in compressor supply wiring or connections 6. Unusually long compressor protector reset time due to extreme ambient temperature 7. Compressor windings are damaged - Check compressor motor winding resistance.

CODE: ALERT (Yellow) Flash Code 6.
RESULT: Open Start Circuit. Current only in run circuit
FIX: 1. Run capacitor has failed 2. Open circuit in compressor start wiring or connections - Check wiring and connectors between supply and the compressor S terminal 3. Compressor start winding is damaged - Check compressor motor winding resistance.

CODE: ALERT (Yellow) Flash Code 7.
RESULT: Open Run Circuit. Current only in start circuit.
FIX: 1. Open circuit in compressor run wiring or connections - Check wiring and connectors between supply and the compressor R terminal 2. Compressor run winding is damaged - Check compressor motor winding resistance.

CODE: ALERT (Yellow) Flash Code 8.
RESULT: Welded Contactor. Compressor always runs
FIX: 1. Compressor contactor has failed closed 2. Thermostat demand signal not connected to module.

CODE: ALERT (Yellow) Flash Code 9.
RESULT: Low Voltage. Control circuit less than 17VAC
FIX: 1. Control circuit transformer is overloaded 2. Low line voltage (contact utility if voltage at disconnect is low) - Check wiring conditions.


See What Our Customers Are Saying:

by Leriksen on Twintech Heating and Cooling

Appreciated a quick response to my request. Dave and Greg were very professional and made the experience seamless.

by petesalmon938 from Pickering on Twintech Heating and Cooling

Very professional through the entire process. Installation and removel was done on a sloppy winter day, they put down runners on the floors and stairs and when they left, there wasn;t any sign of someone being in our house. Furnace works great as promised.

by alenahawco from Whitby on Twintech Heating and Cooling

Dave was very pleasant to deal with and Twintech responded quickly when our furnace needed to be replaced ASAP. Installation was done on time and the crew were neat and tidy. We now have a great furnace that suits the needs of our family.

by Isatta From Pickering on Twintech Heating and Cooling

When your furnace kicks in over the holidays and you're not sure where to turn.. I'm so thankful that this company returned my phone call. I appreciated their transparency and clarity which allowed me to make an informed decision. With various quotes thrown at you, it can be difficult to make the right decision and trust the solutions offered by different companies. TwinTech spoke the truth and delivered on their word. Neat, timely and clean service; the peace of mind I needed during a very cold holiday season. I highly recommend them!

by eryna from Oshawa on Twintech Heating and Cooling

Pulling a old unit out and installing a modern heating system! Required drilling holes in the wall for the newer pipes. We went from 70% (I am willing to bet it was far less due to lack of maintenance and just old) to 96% newer . It now feels warmer and more pressure and we use to run extra heaters and feel as though they are not necessary!

by silvercola from Toronto on Twintech Heating and Cooling

I received three quotes before deciding to choose Twintech. Dave's prices was much more reasonable than the competitors. I most appreciated their honest recommendations. Others tried to oversell their products and services. Thank you Dave!

by Shane from Whitby on Twintech Heating and Cooling

They had the best price and did a great job on the installation. Recommend them to anyone.

by gabnai7 on Twintech Heating and Cooling

It was a amazing and professional high quality job
Friendly and very helpful representatives
Thank you for understanding my concern
And explain very well
Overall we pleased with your service
Tanks

by Linda, Toronto on Twintech Heating and Cooling

My 19 year old furnace stopped working when the cold weather hit in November, and I was left without heat. I interviewed several companies and found TWINTECH HEATING and COOLING to be very knowledgeable, quick to respond to my inquiries and very competitively priced.
Dave provided all of the information and pricing ahead of time and set up the appointment for the installation. Greg and Mitch arrived on time to do the installation and worked quickly and efficiently to complete the job.
After the completion of the installation, Dave followed up to ensure that everything was working well and that I didn't have any concerns.
Overall, this was a low-stress and flawless experience from start to finish. I would highly recommend TWINTECH HEATING and COOLING to anyone that requires a new furnace.

by Sean, Whitby on Twintech Heating and Cooling

Our 20 year old furnace broke down during the first cold weekend this past November and our usual HVAC company never returned our phone call. Their loss, missing out on a sale since we didn't want to spend much fixing an old furnace and our 40 year old air conditioner was also long overdue for replacement. We proceeded in obtaining three different quotes for furnace and air conditioner replacement, and proceeded with the one we received from Twintech.


Dave was friendly, knowledgable and accommodating to our schedule and provided with us with a price that fell in the middle of the three quotes that we had. We felt that the Amana furnace and air conditioner he quoted us on were the best products and value offered to us and felt most comfortable with the professionalism and reputation of Twintech.


Greg, Grant and Mitch were at our house for installation the day after we decided to proceed. The guys were friendly and informative, the job was completed efficiently and workmanship appears excellent. Our house is certainly much more comfortable with the new two-stage variable speed Amana furnace compared to the old clunker! And, we're looking forward to enjoying the new air conditioner once summer rolls around again. Thanks Twintech!

See What Our Customers Are Saying:

by Aaron on Twintech Heating and Cooling

We are very happy to recommend this company to everyone. Our furnace broke down on Sunday morning. We phoned them and before noon Grant the owner showed up. He worked on the furnace for about a hour not wanting to give up to fix the problem. The furnace was 17 years old. I was the one talking about replacing it. End result was the next day it was all done. On the Sunday Bob came over with heaters to warm up the house. We decided to replace the water heater at the same time. Thanks Grant for the excellent work. Thumbs up.

by Linda on Twintech Heating and Cooling

Right on time. Explained how to work the HRV in a different way so the house would not be so dry. Changed my whole house water filter for me as well. Friendly, helpful, caring service!

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!

Honeywell Thermostat Question

  • SUBMITTED BY:
  • TWINTECH HEATING & COOLING
  • - September 23, 2023

Unfamiliar with hvac and would like to ask before doing anything. It's gettin late so can't call anyone. Have a standard Honeywell thermostat that typically does not use batteries to be powered. Noticed it was shut off this evening.

Read More

When Should I Replace My AC Unit?

  • SUBMITTED BY:
  • TWINTECH HEATING & COOLING
  • - June 16, 2024

Deciding when to replace your air conditioning (AC) unit involves considering several factors, including the age of the unit, its efficiency, repair costs, and overall performance. Here are some key indicators that it might be time to replace your AC

Read More

Ignition Issues With Your Furnace

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

If your furnace isn’t turning on or staying lit, it may be experiencing ignition problems. Ignition issues can be frustrating, especially during colder months when you rely on your heating system to function properly. Understanding the possible

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My Air Conditioner Cools Inconsistently

  • SUBMITTED BY:
  • TWINTECH HEATING & COOLING
  • - August 23, 2024

If your air conditioner cools inconsistently, it could point to several underlying issues that may need attention. Here are some common causes and solutions: Common Causes of Inconsistent Cooling: Dirty Air Filters: Clogged filters restri

Read More