SOURCE: recently installed Goodman gmsg24crn1n mini-split
Its normal on a mini split for both lines to be cold. That is why you insulate both lines. The metering device is in the condenser in most mini splits.
First turn the main power off to the unit at the breaker, wait about five min. and switch the breaker back on, then see if this solves the problem. In the instalation manual that came with the unit on the last page you will see a code of the red blinking light, this will tell you the most likely problem if not solved by switching the breaker on again.............Hope this helps
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