

Any idea what this fitting is called?
Looking to replace the male side of the connection and trying to figure out what it is.
The male white plastic bit measures 18.5mm on the outside threads.
It threads into a black flush tank of an RV.


Looking to replace the male side of the connection and trying to figure out what it is.
The male white plastic bit measures 18.5mm on the outside threads.
It threads into a black flush tank of an RV.
I’m trying to narrow down the issue and figure out if it’s repairable or the entire unit needs to be replaced.
The symptoms are as follows:
When the thermostat is in fan mode the AC fan works fine.
When the thermostat is in cool mode, the AC fan and compressor kick in. After one minute the fan shuts down, the compressor keeps running for a few seconds and then shuts down too. At this point the AC will not let the fan or compressor to come on for several minutes (some sort of a safety lockout?). After the lockout times out the steps can be repeated.
The thermostat seems to work correctly as I hear relays click when expected. The freeze sensor was bypassed without symptoms change.
What else can this be? Low charge? Faulty compressor?
Any input is greatly appreciated.