Hi all,
I have been working on a Carrier Primeline reefer for the past two weeks, however, I am unable to solve the problem.
Reefer model #69NT40-561-018
The system has a restriction, and the compressor runs in a vacuum after the three-bump start.
Controller alarm: AA28 - low suction pressure
replace filter drier, replaced all transducers: EPT, SPT &DPT
Replace EEV complete body and coil, replace DUV complete body and coil, replace evaporator temp sensor ETS1 and EST2
The controller interchange (on problem with the controller)

Thanks in advance,
KRampersad