crwdns2934241:0crwdne2934241:0 mayer

crwdns2934249:0crwdne2934249:0:

The most common cause for this condition is a problem with the defrost system.

I would replace the defrost thermostat:  https://www.repairclinic.com/PartDetail/Defrost-Thermostat/5303918214/892545

crwdns2915684:0crwdne2915684:0:

open