P2 code appears on the control panel, and unit shuts down.
There is no water in bottom drainage.
The unit's exhaust air seems to be extremely hot..

http://www.everstarportableairconditioner.com/wp-content/uploads/2014/08/everstar-mpm1-10cen1-bb6-manual.pdf

P2 Water full protection.


Water full protection.There are four switches on the base-pan water tank. S1, S2, S3, S4.As you see the below graph.If the water level exceed WL1, S1 activity, the Pump 1 that in charge of shower system start towork. The fan motor maintains the origin state. After 1 hour, if the water level still exceed WL1,but not exceed WL2. The outer fan motor will turn to low fan. If the water level drop below theWL1, the pump 1 will have 2 minutes delay to shut down.If the water level continues rise and reaching WL2, S2 activity, the outer fan turn to the low fan,after 20 minutes later, the pump 2 that in charge of drain water out start to work, drain thewater to the auxiliary tank. If the water level drops below WL1, the pump 2 stop and the outerfan motor maintain the low fan.At the above 2 steps, if the unit turn from cooling mode to heating and dry mode, the pump 1and pump 2 stop immediately.


Page 14-18 explains it. Also browse closely and check section 8.4 starting about page 16. You may need a qualified tech for this discontinued A/C.