Durham Region Air Conditioning Repair, Service and Installation
List of Whirlpool fault codes and Whirlpool error codes for all Whirlpool Air Conditioners.
CODE: UA.
RESULT: Setting error, indoor and outdoor unit abnormal.
RESULT: Setting error, indoor and outdoor unit abnormal.
CODE: E6.
RESULT: Communication malfunction.
RESULT: Communication malfunction.
CODE: PL.
RESULT: DC input voltage is too low.
RESULT: DC input voltage is too low.
CODE: PH.
RESULT: DC input voltage is too high.
RESULT: DC input voltage is too high.
CODE: F0.
RESULT: Lack of Freon or block protection.
RESULT: Lack of Freon or block protection.
CODE: P7.
RESULT: Temperature sensor malfunction of carbon fin.
RESULT: Temperature sensor malfunction of carbon fin.
CODE: UU.
RESULT: DC overcurrent.
RESULT: DC overcurrent.
CODE: P8.
RESULT: Overheat of carbon fin.
RESULT: Overheat of carbon fin.
CODE: F4.
RESULT: Break-circuit and short-circuit of outdoor condenser temperature sensor.
RESULT: Break-circuit and short-circuit of outdoor condenser temperature sensor.
CODE: F5.
RESULT: Break-circuit and short-circuit of outdoor discharge temperature sensor.
RESULT: Break-circuit and short-circuit of outdoor discharge temperature sensor.
CODE: E4.
RESULT: Discharge protection of compressor.
RESULT: Discharge protection of compressor.
CODE: F3.
RESULT: Outdoor ambient temperature sensor malfunction.
RESULT: Outdoor ambient temperature sensor malfunction.
CODE: U5.
RESULT: Current diction malfunction of complete unit.
RESULT: Current diction malfunction of complete unit.
CODE: H7.
RESULT: Sync failure.
RESULT: Sync failure.
CODE: EE.
RESULT: Storage slug. Indoor PCB malfunction.
RESULT: Storage slug. Indoor PCB malfunction.
CODE: E2.
RESULT: Anti-freezing protection.
RESULT: Anti-freezing protection.
CODE: H4.
RESULT: Overload of system.
RESULT: Overload of system.
CODE: H6.
RESULT: No motor of indoor unit feedback.
RESULT: No motor of indoor unit feedback.
CODE: F2.
RESULT: Indoor pipe temperature sensor malfunction.
RESULT: Indoor pipe temperature sensor malfunction.
CODE: F1.
RESULT: Internal ambient temperature sensor malfunction.
RESULT: Internal ambient temperature sensor malfunction.
CODE: UF.
RESULT: Zero passage abnormal.
RESULT: Zero passage abnormal.
CODE: H3.
RESULT: Overload of compressor.
RESULT: Overload of compressor.
CODE: LC.
RESULT: Startup failure.
RESULT: Startup failure.
CODE: UH.
RESULT: No motor of outdoor unit feedback.
RESULT: No motor of outdoor unit feedback.
CODE: E5.
RESULT: Overcurrent protection.
RESULT: Overcurrent protection.
CODE: U7.
RESULT: 4-way valve conversion abnormal.
RESULT: 4-way valve conversion abnormal.
CODE: U1.
RESULT: Phase current detection malfunction of compressor.
RESULT: Phase current detection malfunction of compressor.
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!
Feb 18, 2025
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!
Feb 18, 2025
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.
Aug 17, 2024
I returned from vacation to find my AC unit on the Fritz. After calling way too many places I connected with TwinTech. Ive used the company in the past for my furnace so I was happy when I recognized Greg at my front door. Hes great and the service is always top notch. Id highly recommend using twintech for honest, superior service in the Durham region. Thanks!
Aug 13, 2024
I called Twin Tech when my air conditioning stopped working. Greg came over to diagnose the issue - the same day. He was able to diagnose the issue and resolve it quite quickly. Although it was a quick fix, Greg was very thorough in explaining the issue and provided great advice. Not to mention, I felt very comfortable having Greg in my home - which I consider very important when hiring a service provider. Twin Tech will be my go-to from now on. Thank you!!
Aug 12, 2024
Just hired TwinTech Heating & Cooling to do an A/C Unit removal & reinstall to allow for landscaping access on the side of my house, and they were wonderful!
Bob, Greg & Mitch make a great team! Quick appointment times, super knowledgeable, expert troubleshooting capabilities & very customer service oriented.
I would highly recommend them for all of your HVAC needs! Great job guys!!
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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