Mitsubishi Mini Split
 

I have a mini split in my lanai that needs service. It was installed about 6 years ago and cools and heats perfectly except now it has started to hum intermittently, sometimes hours after the unit has been turned off. I've had one what I believe to be an outrageous estimate to replace the pump. Has anyone had experience with companies servicing these units and can give me a recommendation so I can get another estimate? Thanks for any advice.

Obviously the place it was purchased but sounds like you probably already tried that company. Unfortunately we live in a “throw away world” where it’s easier and many times less costly to replace instead of repair. I would try any company that sells and installed one. Good luck.

It is most likely that you have a bad capacitor. The part retails for 18.00 or so. I have replaced these myself. It is simple. You should pay a service call and whatever they charge for the capacitor.

Call during business hours for a non priority service call. It should cost approximately 150.00

It sounds like you may need a new condensate drain pump located in the inside unit. The pump will run even after the unit is turned off. You can buy one online for about $250, but you would probably need an HVAC technician to install it.

I recommend that you call Kalos for service, 352-243-0799. They installed my Mitsubishi about a year ago and I trust them for service.

I took my pump off and let gravity do the work.

OP, that sounds like a good idea to stop the humming noise, if you can drain the condensate line to the outside and either remove or disconnect the pump.

I had issues with my mini split also and found Daniels heating and A/C to be very good. They are authorized Mitsubishi dealer located near Inverness. They do many jobs in The Villages. Saved me $$ compared to the others.
Phone 352-726-5845

We use Munn’s for all our AC work.

We use Munn’s for all our heating & AC work.

Munn's

Sun Kool

Sunshine Air Conditioning

These are the main players in TV.

Try calling Eric Sword, Sword Heating and Air, 352 434 7550. Have been using him for years. If he can’t help you, he will tell you. Honest, courteous and professional.

My Mitsubishi mini split, installed a few years ago by Munns, has a 10 year parts and labor warranty, including the condensate pump. In case you haven't checked, perhaps you are still covered by a warranty?

Apparently, the pump is not a Mitsubishi part and does not have the same 10 year warranty. This according to Munns.

Thanks everyone. I knew I could get good info on this site.