Question about Heating & Cooling
Originally had the same conditions above and came to the conclusion that the evap coil had blockage (we tried several times to clear it) and then removed all the refrigerant, swapped out the evap coil (used nitrogen while brazing), did a pressure test and vacuum test, and recharged with new refrigerant -- note: evap coil uses a piston metering device and we reinstalled the same one -- during the beginning of the recharging process the pressures and temps seemed to be ok but then the hissing noise at the condenser (bypass) started and after a few minutes the head pressure climbed way up and the suction did not follow -- but after we shut off the unit the head remained high and the suction followed -- after a few more minutes the head pressure dropped and the suction pressure remained high -- if the unit is powered back on then the cycle repeats itself -- so we're not sure what to check from here -- I suspected the condensing unit filter/dryer but the temps on either side of the device are not drastic
Disconnect the blower and turn on the ac.see if the coil frosts evenly.when you had the system open,you should have changed the liquid line drier.
Posted on Jul 29, 2008
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Tips for a great answer:
Jan 10, 2014 | True TMC-58-DS Commercial Refrigerator
Jun 28, 2012 | Heating & Cooling
Jul 17, 2011 | Goodman Heating & Cooling
Sep 08, 2010 | Heating & Cooling
Jul 17, 2010 | Goodman CLQ36AR49 Air Conditioner
Jul 29, 2009 | 1999 Chevrolet Suburban
Jun 26, 2009 | Hussmann Freezer 12 Facing Straight Glass...
Mar 31, 2009 | Heating & Cooling
Oct 07, 2008 | Goodman Heating & Cooling
361 people viewed this question
Usually answered in minutes!