$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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Goodman Manufacturing is an American company operating as an independent subsidiary of Daikin Group, the world's largest manufacturer of heating, ventilation and air conditioning products and systems. The company, founded in 1975 and based in Houston, Texas, manufactures residential heating and cooling systems.


CODE: A2.
RESULT: Shorted sensor./Open sensor./Sensor disconnected./Sensor out of range.

CODE: A3.
RESULT: Shorted sensor./Open sensor./Sensor disconnected./Sensor out of range.

CODE: E5.
RESULT: Short in low voltage wiring.

CODE: EE.
RESULT: Compressor relay contacts welded.

CODE: b0.
RESULT: Indoor blower motor problem./Communications errorbetween indoor and outdoor unit.

CODE: b9.
RESULT: Indoor blower motor problem./Blocked filters./Restrictive/ undersized ductwork./Indoor-outdoor unit miss match.

CODE: d0.
RESULT: Air conditioner/heat pump is wired as part of a communicating system and integrated control module does not contain any shared data.

CODE: d1.
RESULT: Air conditioner/heat pump is wired as part of a communicating system and integrated control module contains invalid shared data or network data is invalid for the integrated control module.

CODE: d2.
RESULT: Air conditioner/heat pump is wired as part of a communicating system and outdoor unit requires airflow greater than indoor unit's airflow capability./ Shared data is incompatible with the system or missing parameters.

CODE: d3.
RESULT: Shared data sent to integrated control module does not match hardware configuration.

CODE: d4.
RESULT: Shared data on memory card has been rejected.

CODE: 01.
RESULT: Low refrigerant charge./Restriction in liquid line./Indoor blower motor failure.Indoor thermostat set extremely low.

CODE: 02.
RESULT: Blocked condenser coil./Outdoor fan not running.

CODE: 03.
RESULT: Intermittent thermostat demand./Faulty compressor relay.

CODE: 04.
RESULT: Compressor bearings are seized./Failed compressor run capacitor./Faulty run capacitor wiring./Faulty compressor wiring./Low line voltage.

CODE: 05.
RESULT: Power is disconnected./Failed compressor protector./Compressor not properly wired to control.

CODE: 06.
RESULT: Compressor start winding is open./Failed compressor run capacitor./Faulty run capacitor wiring./Compressor not properly wired to control./Faulty compressor wiring.

CODE: 07.
RESULT: Compressor run winding is open./Compressor no properly wired to control./Faulty compressor wiring.

CODE: 08.
RESULT: Low line voltage./ High line voltage.

CODE: 09.
RESULT: Control detects secondary voltage less than 18 VAC./Transformer overloaded./Low line voltage.


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.

The Best Time to Call an HVAC Expert

  • SUBMITTED BY:
  • TWINTECH HEATING & COOLING
  • - July 28, 2018

If you do not know this by now, HVAC systems are a key component that actively works to keep our homes safe and comfortable all year-round. DIY-minded homeowners are often able to fix minor problems around their homes, but when it is your HVAC sys

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

Twintech: Reliable Furnace Repair in Ajax When the chill of winter sets in, having a dependable furnace is crucial to keeping your home warm and comfortable. Twintech Heating and Cooling offers reliable furnace repair services in Ajax, ensuring yo

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Is My Heat Pump Wired Correctly?

  • SUBMITTED BY:
  • TWINTECH HEATING & COOLING
  • - October 26, 2023

Dealing with electrical systems can be dangerous, and it's always a good idea to consult a licensed HVAC technician or electrician for a professional assessment. To get started, here are some general steps you can take to check if your heat pu

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Common HVAC Noises You Should Be Aware Of

  • SUBMITTED BY:
  • TWINTECH HEATING & COOLING
  • - April 14, 2018

Are you suffering from unnecessary noise in your home Are you having a hard time watching and hearing the TV because your vents are too loud There are some noises that are normal, but there are also instances wherein HVAC systems make strange noise

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