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Why is My Panasonic Heat Pump Making Strange Noises?

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Why is My Panasonic Heat Pump Making Strange Noises?

Posted On: January 19, 2024

Why is My Panasonic Heat Pump Making Strange Noises?

There could be various reasons why your Panasonic heat pump is making strange noises. Here are some common causes and potential solutions:


  1. Normal Operating Sounds: Heat pumps can make some normal operating sounds, such as a low hum or soft clicking, as they cycle through different modes. Check the user manual to understand the typical sounds your heat pump might make during operation.


  2. Vibrations or Loose Parts: Check for any loose panels, screws, or components. Vibrations during operation can sometimes cause parts to become loose. Tighten any loose screws or panels and see if the noise persists.


  3. Fan Issues: The indoor or outdoor fan might be causing the noise. Inspect the fans for any obstructions, such as debris or loose parts. If the fan blades are hitting something, adjust them carefully. If the noise continues, it could indicate an issue with the fan motor, and you may need professional assistance.


  4. Refrigerant Issues: Strange gurgling or hissing sounds could indicate a refrigerant issue. If there's a refrigerant leak or low levels, it may affect the heat pump's efficiency and generate unusual noises. Refrigerant-related issues should be addressed by a qualified technician.


  5. Expansion and Contraction: During normal operation, the heat pump components may undergo expansion and contraction, especially when transitioning between heating and cooling modes. This can result in popping or clicking sounds. If these sounds are not excessively loud and occur briefly, they are usually normal.


  6. Ice Buildup: In colder climates, ice can accumulate on the outdoor unit during winter. When the heat pump goes into a defrost cycle, you may hear cracking or popping sounds as the ice melts. If the noise persists, or if there's excessive ice buildup, consult a technician to inspect and address the issue.


  7. Motor Issues: If there are issues with the compressor or other motors, it could result in unusual sounds. Motors might produce grinding, screeching, or other abnormal noises when they are malfunctioning. In such cases, professional assistance is recommended.


If you're unable to identify or resolve the issue on your own, it's advisable to contact a qualified HVAC technician to inspect and repair your Panasonic heat pump. Regular maintenance and timely repairs can help ensure the efficient and quiet operation of your heat pump.



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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.

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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.

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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.

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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.

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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.

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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.

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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.

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