All error codes By model: T1100T1500T1700T2300T2500T610T730T830T930Z5200Z6Z6200Z9 Model T730 Error Code 0051-0201 Problem Description PHA door sensor failure Corrective Action Options Turn off/on. Run top cover sonsor diagnostic, replace door sensor PCA, replace cable, replace Main PCA Schedule Service Call ⭢ (301) 340-0000 Email ⭢ Contact Us