Mini-split heat pump service

When installed properly, the service life of a mini-split heat pump is expected to be approximately 12-15 years. As a heating appliance with moving parts, there are routine service requirements and occasionally there are parts that need to be replaced. Even when the unit has been installed in accordance with best practices, some of the following issues may arise:

  • fan motor failure
  • damage to control boards
  • mold growth on the indoor unit
  • occasional manufacturer’s defects

We stand behind our installations by providing a 3-year labor warranty to support the parts warranty offered by the heat pump manufacturer and by servicing everything we sell. We also have extensive experience servicing these units for clients that had their equipment installed by another company.

Mini-split heat pump repair

When mini-split heat pumps are poorly installed, there are a number of issues that may occur. Poor flares on the copper lineset can lead to refrigeration leaks. The global warming potential caused by a refrigeration leak from a small single-zone heat pump has roughly the same impact as burning a full tank of heating oil.

We service over 400 units that were installed in low-income housing units by other installation firms. As a result, we have discovered and resolved significant electrical code violations, equipment falling off of walls, condensate leaks, units installed too close to combustible fuels, and units with inadequate clearances that lead to poor performance.

Our ethic is to install equipment right the first time, provide ongoing support (including a 3-year labor warranty), and to assist those who have units that are functioning improperly and are unable to get assistance from the original installer.

Service & maintenance

Most heating systems require routine service; mini-split heat pumps are no exception. Some of this maintenance is quite easy and can be done by the owner. Other items require equipment and tools that are specific to our trade. In all that we do, we seek to minimize the life-cycle costs required to install and maintain the equipment.

Insource Renewables will work with you to keep your unit running as efficiently as possible. We provide training to heat pump owners, including a series of instructional videos that are available at your convenience. We also provide deep cleaning services and routing checkups.

Contact Us Today For Heat Pump Installation Or Repair

(207) 659-1054





  • Vaughan has professionally bridged the gap between being a contractor and being an advocate for Maine homeowners in their mission to save energy. He is not a ‘one size fits all’ in terms of efficiency and many times he has recommended our services over his own when looking at the types of challenges homeowners face when decreasing their carbon footprint.

    Bo Jespersen
    Owner / The Breathable Home
  • Working with the Insource Renewables team was for me not only a satisfying experience but also encouraging about the renewable energy industry itself. These people were well-informed and articulate in their advice and planning on my project.

    They brought the fruits of both long experience with solar design and deep conviction about the importance of renewable energy in today’s world. In follow-up, they have been generous and good-natured in answering questions.

    Phoebe Phelps
    Orland, Maine
  • We contracted Insource Renewables to install a solar heater for our swimming pool and a cluster of home energy improvements. We were very pleased with the expertise, integrity, and work ethic of Vaughan Woodruff and his fine team.

    We were consistently informed of and/or consulted on scheduled activities and events throughout. At every juncture, Vaughan and his team were obviously guided by the principle of doing what is right for the customer.

    We have recommended to our friends and continue to unreservedly recommend Insource Renewables for any energy-related projects.

    Michael Leblanc & Rosalie Williams
    Pittsfield, Maine
  • We are very happy with our new solar panels from Insource Renewables. It’s great that, now, our house is a power generation factory! Vaughan and the rest of the team are excellent, knowledgeable, friendly, proactive. Within 2 days of the start of the project, our meter was running backwards! It’s satisfying to make a small but real change in the severe climate issues that our planet is facing. I’m also really thankful that Vaughan connected us with the Greater Bangor Solarize program, which saved us over $2,000 on our installation! Vaughan provided us with many different options and answered so many questions that we had, until we found the solar project that was right for our family.

    Julie Gosse
    Orono, Maine
  • We discovered Insource Renewables (and Backyard Buildings in Unity) this Spring and were immediately taken with the concept of the “solar shed.” We knew we needed to build or buy a shed for some extra outdoor storage, and I’d always wanted to go solar at our house, so this made perfect sense!

    Matt, Vaughan, and the whole team at Insource were excellent to work with, answered all our questions, and made sure everything came together on this project. We are excited to be building out the inside of our shed while knowing we are making power every day just by having this system in our back yard.

    Great job all!

    Bruce Fitzgerald
    South China, Maine
  • When our heat pump had electrical issues, there are a couple of ways that this event could have gone. Insource could have blamed the manufacturer, basically come back and continued to tweak the unit, or – worse yet – not been terribly responsive overall. I can’t tell you how good and stress free it has felt to know that you guys have put the customer first and have done your absolute best in the matter.
    We are very grateful.
    Steve Podgajny
    Brunswick, Maine