All error codes By model: T1100T1500T1700T2300T2500T610T730T830T930Z5200Z6Z6200Z9 Model T2300 Error Code 21.1:YZ Problem Description Failure moving the Primer Motor of the Service Station Corrective Action Options Turn off/on. Check for clear path, perform Primer Motor Diagnostics test , replace service station Schedule Service Call ⭢ (301) 340-0000 Email ⭢ Contact Us