HVAC Sales Master

Fault Code Lookup

HVAC Sales Master
Alert History
Historical alerts from last 30 days — stores cleared alerts
This code typically points to
    Next checks to confirm
    1. Diagnostics menu → Alert History to review cleared alerts
    Escalation
    None
    Reset behavior
    Menu label.
    Informational
    No action needed
    Deeper detail available
    The manufacturer has pushed full per-code troubleshooting trees into the Trane Technician app. Use the app for subcode detail beyond what's shown here.
    Source
    XL1050 18-HD80D1-6F-EN, XL850 18-HD73D1-9E-EN
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