Durham Region Air Conditioning Repair, Service and Installation
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.
RESULT: Shorted sensor./Open sensor./Sensor disconnected./Sensor out of range.
CODE: A3.
RESULT: Shorted sensor./Open sensor./Sensor disconnected./Sensor out of range.
RESULT: Shorted sensor./Open sensor./Sensor disconnected./Sensor out of range.
CODE: E5.
RESULT: Short in low voltage wiring.
RESULT: Short in low voltage wiring.
CODE: EE.
RESULT: Compressor relay contacts welded.
RESULT: Compressor relay contacts welded.
CODE: b0.
RESULT: Indoor blower motor problem./Communications errorbetween indoor and outdoor unit.
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.
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.
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.
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.
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.
RESULT: Shared data sent to integrated control module does not match hardware configuration.
CODE: d4.
RESULT: Shared data on memory card has been rejected.
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.
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.
RESULT: Blocked condenser coil./Outdoor fan not running.
CODE: 03.
RESULT: Intermittent thermostat demand./Faulty compressor relay.
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.
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.
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.
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.
RESULT: Compressor run winding is open./Compressor no properly wired to control./Faulty compressor wiring.
CODE: 08.
RESULT: Low line voltage./ High line voltage.
RESULT: Low line voltage./ High line voltage.
CODE: 09.
RESULT: Control detects secondary voltage less than 18 VAC./Transformer overloaded./Low line voltage.
RESULT: Control detects secondary voltage less than 18 VAC./Transformer overloaded./Low line voltage.
See What Our Customers Are Saying:
Apr 12, 2019
On one of the coldest days of winter, our furnace stopped working. Our regular furnace company came and told us we had a CO2 leak and shut us off. Their quote for a new furnace was way too high and they couldn't even install it on the same day. TwinTech was recommended to us by a friend. We called and spoke to Dave who was very nice and knowledgeable. Grant showed up a short time later and a new furnace was installed the same day with no troubles at all. Best of all, we received a higher-end furnace than what was offered by our previous company and at a cheaper price. I would recommend TwinTech with no hesitation at all.
Apr 11, 2019
I installed a new furnace and Air conditioner with them. The installation is of high quality and according to standards. The guys are professional and reasonably priced.. I highly recommend them.
Apr 10, 2019
Had new furnace installed and ran into some difficulties but the contractor responded in a timely and efficient manner - after further service calls were made, a reasonable resolution was found.
Apr 8, 2019
The work was done quickly efficiently neatly and professionally. Pleased with the service, information, product, and the company.
Apr 1, 2019
Great sales member named Dave came in told us some amazing items and how they would be priced installed an all. We couldnt believe it! The next day the ac was installed, that day one employee named Greg told us that our furnace was working way to hard and was causing us to use way too much gas. So two days later they came in an installed a new furnace!
Apr 1, 2019
Installation was done quickly and professionally. The new furnace is quiet and provides even heat.
Mar 3, 2019
They removed and discarded old furnace. Installed new furnace. Installed air intake pipe, that had never been installed by builder, no charge. Replaced loose hose on floor with hard pipe and rerouted it to drain, no charge. Almost 33% cheaper then quote from Enercare, which was the company we dealt with and had insurance with for 8 years. No yearly fee for cleaning/insurance, saves 300 a year. Courteous, professional, fast, and friendly. My wife and I have been recommending them to everyone we know and meet, and will continue to do so. Thanks for everything, Twintech!!!
Mar 4, 2019
This company was great to deal with. Our furnace went down and they installed a new furnace the next day with a lot of professionalism!
Feb 22, 2019
Finally! An honest company with highly knowledgeable and informative staff. Had a furnace service and found multiply errors in our system from an amateur installer. Very fair price to correct problems and will definitely use again.
Feb 16, 2019
Had to replace the heating & a/c unit in a condo apartment dwelling. this company recommended by the property manager and president of the condo building. found their workmanship and attention to details very good and very thorough. were able to resolve small problems and situations and happy to feel the heat in my unit. it's pricey, but happy was done by a very professional service. thank you.
See What Our Customers Are Saying:
Aug 8, 2025
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.
Aug 8, 2025
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!
Feb 18, 2025
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.
Feb 18, 2025
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!
Feb 18, 2025
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!
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- SUBMITTED BY:
- TWINTECH HEATING & COOLING
- - September 5, 2023
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- SUBMITTED BY:
- TWINTECH HEATING & COOLING
- - October 21, 2017
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- SUBMITTED BY:
- TWINTECH HEATING & COOLING
- - October 26, 2023
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- SUBMITTED BY:
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- - October 31, 2024
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