You need to first diagnose what's wrong with it before you can figure out what needs to be done to repair it.
It's unusual for PTAC HVAC units to freeze up in AC mode however it can occur typically due simply due to not enough cool air circulation through the coils within the unit. Hope this helps! Valley Of The Sun. http://ptacunits.com/about-us
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AC Repair of The woodlands
A PTAC AC unit is a type of air conditioning system designed for residential use that offers key features such as individual room temperature control, energy efficiency, and easy installation. The benefits include cost savings on energy bills, quiet operation, and the ability to heat and cool a room efficiently.
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Installing a PTAC system in a commercial building can provide benefits such as individual temperature control, energy efficiency, cost savings, and easy maintenance. PTAC systems are also known for their quiet operation and flexibility in heating and cooling different areas of the building.
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Replace it
Need a fast and affordable AC repair in Minneapolis? Call H2C Heating, Cooling & Plumbing – one of the best air conditioning contractors in Minneapolis at 612-791-0850 for all of your air conditioner repair needs.
What do you need? A diagnostic?, a repair? Do you know what problem is? What are symptoms?
PTAC air conditioning units offer benefits in commercial buildings such as individual temperature control, energy efficiency, easy installation, and cost-effectiveness.
Take it to a mechanic...