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Thread: Walk in Freezer!
06-06-2012, 09:10 PM #1
Walk in Freezer!
Had a odd one today. 404a Walk in running warm. I arrive and go inside box. Hear the liquid line hissing like it's low on gas. grab line and it's hot. Threw my low side gauge on the evap and suction pressures 80 psi. WTF is my condensor fans out. Well, i find out one of them is, But, other 2 are running and condensors is spotless. Head is close to 400. SG is flashing!! What do you think is wrong with it? This is a coldzone rack system. Other systems on same rack are doing ok even though one fan is out.
06-06-2012, 09:55 PM #2Regular Guest
- Join Date
- Apr 2010
Can you pump down that system? Make sure you don't have bad valves in that compressor.
06-06-2012, 10:05 PM #3
If the line is hot it's not condensing, which is probably the hissing that you here, or may have some blow by..
did you try a sprinkler under the condenser until you can return w/ the motor?
what was the amb. ? 404-a dosn't do well in hot weather....
I had the same thing the other day, the condenser was a unicon with 4 other circuits on it.
lost the fan opposite the header end...working w/ sprinkler over weekend.
Last edited by sprmktrefertech; 06-06-2012 at 10:08 PM. Reason: spelling
06-06-2012, 10:07 PM #4
It's running 400 head. I don't think bad valves are gonna give you 400 head. I actually got the unit running right in a couple minutes. This is just for fun!
06-06-2012, 10:09 PM #5
06-06-2012, 10:11 PM #6Professional Member*
- Join Date
- Jun 2007
- Williamsport, PA
does it have a head pressure control vale stuck in bypass.
06-06-2012, 10:23 PM #7
06-07-2012, 06:32 AM #8
06-11-2012, 01:43 AM #9
06-11-2012, 06:02 AM #10
06-11-2012, 07:22 PM #11