My mini split unit operates but will not cool. What can I do to fix this problem?
February 18, 2009 by Shawn Mack
Filed under Technical Guide
A. Check filters in the indoor unit. If filters are dirty clean or replace.
B. Check to make sure there is no blockage around the indoor or outdoor unit.
C. Check for proper suction pressure.
1. Suction pressure should range between 60 and 70 PSI
2. If pressures are too high, you will have to remove small amounts by evacuating lines until suction pressure is in range.
3. If pressure is too low. You will need to add refrigerant. If the mini split unit “RUN Load Amps” are more than two times the stated “RUN Load Amps” on the label of the outdoor unit label, replace capillary assembly.
4. The mini split unit will also not cool in low outdoor temperatures. There are low ambient kits to help run your air conditioner in temperatures below freezing.
Join the forum discussion on this post - (1) Posts
March 9th, 2009 at 3:33 pm
split system has not worked for long time just purchased property. make GREE
inside fan runs, outside unit tries to kick in spins fan briefly then trips out with a hum not starting comressor at all
thanks,
April 16th, 2009 at 8:30 am
Maybe we can pay much attention to the filter, cause maybe a lot of dust at there.
Daily cleaning can make our mini split unit live and more cool.
Thank you
July 3rd, 2010 at 9:40 am
I am having same problem as ray…any resolution??????