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Phil, Mechanical Engineer
Category: HVAC
Satisfied Customers: 6022
Experience:  Retired HVAC/ Electrical & Boiler contractor. Industrial
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Indoor unit model no msz-a09na-1 operation light flashing

Customer Question

Indoor unit model no msz-a09na-1 operation light flashing out door unit not working
JA: Did you double-check the thermostat? And what about the unit's filters?
Customer: Yes set for cooling
JA: Do you plan on doing the work yourself?
Customer: Yes
JA: Anything else we should know to help you best?
Customer: Outdoor unit model no is mxz-3a30na-1
Submitted: 1 year ago.
Category: HVAC
Expert:  Phil replied 1 year ago.

Hello, I need the brand name to go with that model number.

Customer: replied 1 year ago.
Indoor unit runs for about 2 min then starts flashing operation light mr slim Mitsubishi model no. Max's 3a30na -1
Expert:  Phil replied 1 year ago.

Thanks, ***** ***** nothing you can repair yourself, the systems rely heavily on interacting micro computers. There is less than a 1% chance that I can coach you to full diagnosis and repair on this, and that is only if you have an electronics background.

Let me know if you would like me to locate a local mitsubishi dealer for you, that company has a program that plugs the contractor directly into their technical diagnosis base in Japan.

If you want me do do that, tell me which direction you are from the center of the nearest city and I will see what I can do