$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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List of Whirlpool fault codes and Whirlpool error codes for all Whirlpool Air Conditioners.


CODE: UA.
RESULT: Setting error, indoor and outdoor unit abnormal.

CODE: E6.
RESULT: Communication malfunction.

CODE: PL.
RESULT: DC input voltage is too low.

CODE: PH.
RESULT: DC input voltage is too high.

CODE: F0.
RESULT: Lack of Freon or block protection.

CODE: P7.
RESULT: Temperature sensor malfunction of carbon fin.

CODE: UU.
RESULT: DC overcurrent.

CODE: P8.
RESULT: Overheat of carbon fin.

CODE: F4.
RESULT: Break-circuit and short-circuit of outdoor condenser temperature sensor.

CODE: F5.
RESULT: Break-circuit and short-circuit of outdoor discharge temperature sensor.

CODE: E4.
RESULT: Discharge protection of compressor.

CODE: F3.
RESULT: Outdoor ambient temperature sensor malfunction.

CODE: U5.
RESULT: Current diction malfunction of complete unit.

CODE: H7.
RESULT: Sync failure.

CODE: EE.
RESULT: Storage slug. Indoor PCB malfunction.

CODE: E2.
RESULT: Anti-freezing protection.

CODE: H4.
RESULT: Overload of system.

CODE: H6.
RESULT: No motor of indoor unit feedback.

CODE: F2.
RESULT: Indoor pipe temperature sensor malfunction.

CODE: F1.
RESULT: Internal ambient temperature sensor malfunction.

CODE: UF.
RESULT: Zero passage abnormal.

CODE: H3.
RESULT: Overload of compressor.

CODE: LC.
RESULT: Startup failure.

CODE: UH.
RESULT: No motor of outdoor unit feedback.

CODE: E5.
RESULT: Overcurrent protection.

CODE: U7.
RESULT: 4-way valve conversion abnormal.

CODE: U1.
RESULT: Phase current detection malfunction of compressor.


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!

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.

by Trevor Owens on Twintech Heating and Cooling

I returned from vacation to find my AC unit on the Fritz. After calling way too many places I connected with TwinTech. I’ve used the company in the past for my furnace so I was happy when I recognized Greg at my front door. He’s great and the service is always top notch. I’d highly recommend using twintech for honest, superior service in the Durham region. Thanks!

by Nicole Alain on Twintech Heating and Cooling

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!!

by Courtney Parkes on Twintech Heating and Cooling

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:

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!

Energy-Saving Tips for Summer

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

If you think that you are doing everything to possibly keep your costs down on your utility bills during the warmer months, then you should know that there is always room improvement. We have gathered some great energy-saving tips that can save mo

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Why is My Heat Pump Beeping?

  • SUBMITTED BY:
  • TWINTECH HEATING & COOLING
  • - December 7, 2023

A heat pump beeping can be an indication of various issues, and it's important to determine the cause to address the problem properly. Here are some common reasons why your heat pump might be beeping: Error Codes: Many heat pumps are equ

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Should My Furnace Be Blowing Cold Air?

  • SUBMITTED BY:
  • TWINTECH HEATING & COOLING
  • - November 26, 2024

If your furnace is blowing cold air, it could indicate a problem that needs attention. Here are some common reasons and steps to troubleshoot: 1. Thermostat Settings Check the mode: Ensure the thermostat is set to "Heat" and not &q

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5 Ways to Save Energy and Cut Air Conditioning Costs this Summer

  • SUBMITTED BY:
  • TWINTECH HEATING & COOLING
  • - June 5, 2019

Do you find that your AC bills begin to rack up as soon as summer comes around During the hotter months, your air conditioning unit has to work harder to cool down your home, which can lead to expensive energy bills. We’ve come up with 5 tips and

Read More