$49 / month O.A.C Including Install
$49 / month O.A.C Including Install

I wanted to understand which wire is common wire on my Heat Pump

24 / 7 Emergency Service Available. Call Us Now: 1.844.894.6832


[BACK]
I wanted to understand which wire is common wire on my Heat Pump

Posted On: March 28, 2023

I wanted to understand which wire is common wire on my Heat Pump

This is connected to my heat pump.


Question from user BeatAlive at heatpumps at reddit.


In a heat pump system, the common wire, often referred to as the "C wire," is an important component for providing continuous power to the thermostat. However, the specific wiring configuration can vary depending on the manufacturer and model of your heat pump.


Typically, the common wire is used to complete the circuit for powering the thermostat and is often connected to the "C" terminal on both the heat pump unit and the thermostat. The C wire is usually colored blue, but it can also be any other solid color, such as black or brown.


To determine the common wire in your heat pump system, you can follow these steps:


  1. Turn off the power to your heat pump system by switching off the circuit breaker that supplies electricity to it. This is important to ensure your safety while working with the wiring.


  2. Locate the control board of your heat pump. This is usually found in the indoor unit or air handler.


  3. Look for a terminal strip on the control board where the thermostat wires are connected. The terminals are typically labeled with letters, including "C" for the common wire.


  4. Examine the existing wiring and identify the wire connected to the "C" terminal. This wire is most likely your common wire.


  5. If the wire colors are not clearly labeled, you can use a multimeter or voltage tester to verify which wire is providing a continuous 24-volt power supply. The common wire should show a voltage reading between 23-28 volts.


Once you have identified the common wire, you can connect it to the "C" terminal on your thermostat. However, I must emphasize that working with electrical systems can be hazardous if you are not experienced or comfortable doing so. If you're unsure or uncomfortable with the process, it's best to consult a professional HVAC technician to assist you with the wiring.



[BACK]

See What Our Customers Are Saying:

by Private User on Twintech Heating and Cooling

Twintech promptly responded to request for quotation. They were thorough and helpful in explaining options. The quote was very competitive. Installation of new furnace was very professionally completed. Excellent work.

by Rita, Scarborough on Twintech Heating and Cooling

When our old oil furnace finally broke down we decided it was time to finally convert to natural gas and finally install central air conditioning at the same time. Knowing it was going to be a significant investment for us, we wanted to make the right choice. Twintech came highly recommended by a friend and we were not disappointed. From the first contact with the salesperson, until the final touches on the installation, we were so pleased with their service. Everyone from the company was so friendly, efficient and a pleasure to deal with. Best of all, the cost was very competitive. We would certainly recommend Twintech to anyone requiring HVAC work in their home.

by Bob S, Pickering on Twintech Heating and Cooling

Mitch from Twintech came out for our annual furnace inspection. We found him to be friendly, conscientious & he left the work area clean. We were also very impressed with the thoroughness of the job he did. This is the 2nd job we’ve had Twintech do for us & have been very happy with the results for each. We highly recommend this company. Thank you, Mitch, Dave & Greg.

by Brent L on Twintech Heating and Cooling

Work was done on schedule, professionally, according to quote and with minimal inconvenience to building users. Very happy with the end result. The only area for improvement from my experience - need more timely quoting process.

by Karen on Twintech Heating and Cooling

The team was great! Very knowledgeable, professional and extremely helpful. A few days after install the unit didn’t seem to be working, user error, but within minutes of contacting them..on a Saturday.. a tech was on the phone troubleshooting with us. I highly recommend Twintech for your cooling or heating needs. They stand by their products and a pleasure to deal with.

by Rob on Twintech Heating and Cooling

During the hottest week in the summer our old A/C decided to call it quits. I called Twintech Heating & Cooling after receiving a referral from a family member; came highly rated for being an honest, family-run business, who appreciates their customers. Dave was able to accommodate my hectic schedule and book a late evening appointment to walk through the specifics. Greg and Mitch arrived exactly on time a few days later, were very polite and friendly, and within a couple of hours had a new unit up and running. I also received a follow-up call to ensure we were happy with the Amana.

by Linda Robinson on Twintech Heating and Cooling

They were on time and very professional. I'm so glad I decided to go with Twintech, thanks!

by Famcam1953 on Twintech Heating and Cooling

Timely and appreciated - this was during the hottest days this year when our Air and Furnace way.
Efficient. Professional. No BS or overselling. What was promised, was delivered at a cost-effective price point.
Down to earth.

by DG Sellers on Twintech Heating and Cooling

Professionally done and took care to cover all entry floors to the house for the installers to remove the old furnace and install a new furnace.
I also made recommendations of the tankless water heater that we had installed and items to address. We did not know they also installed tankless water heaters.

by Bill, Pickering on Twintech Heating and Cooling

Price was not the cheapest nor the most expensive of my quotes. It's the quality of the installation that makes for a good AC system. The twins' knowledge & professionalism was evident in the small details:
Very clean work. Greg made sure that the refrigerant level & temperature were correct. They reinstall the insulation & vapor barrier around the wall. The outside electrical cords were secured to the wall. Proud to support this local company. Thank you.

Related Links:
heat pump system cost, 5 ton heat pump, indoor heat pumps, heat pump technology, residential heat pump system, heat pump hvac system, heat pump,


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.

How Long Should My Panasonic Heat Pump Last?

  • SUBMITTED BY:
  • TWINTECH HEATING & COOLING
  • - January 18, 2024

The lifespan of a Panasonic heat pump can vary depending on various factors, including usage, maintenance, and environmental conditions. On average, heat pumps typically last between 10 to 15 years. However, with proper care and regular maintenance,

Read More

Optimizing Your Furnaces Capabilities

  • SUBMITTED BY:
  • TWINTECH HEATING & COOLING
  • - February 9, 2025

A well-maintained furnace ensures your home stays warm and comfortable while keeping energy costs under control. Here are some key steps to optimize your furnace’s efficiency and longevity: 1. Change or Clean the Air Filter Regularly A cl

Read More

Twintech Heat & Cooling: HVAC Repair You Can Trust

  • SUBMITTED BY:
  • TWINTECH HEATING & COOLING
  • - August 12, 2024

Twintech Heat & Cooling: HVAC Repair You Can Trust When it comes to maintaining a comfortable home environment, a reliable HVAC system is essential. At Twintech Heat & Cooling, we understand the importance of keeping your heating and cooli

Read More

Twintech - Your Heat Pump Experts in Toronto

  • SUBMITTED BY:
  • TWINTECH HEATING & COOLING
  • - April 16, 2025

When it comes to heat pump solutions in Toronto, Twintech Heating & Cooling stands out as the trusted local expert. We specialize in all things heat pump. Twintech offers professional installation, personalized consultations, and ongoing su

Read More