OM 1057 - Programmable Automtaic Changeover Digital Controls / Page
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Self Diagnostics
Status codes are displayed to correspond with the following:
• E1 – Room Sensor
• E2 – Indoor Coil Sensor
• E3 – Outdoor Coil Sensor
• E4 – Outdoor Air Sensor
• CE – Communication error between key pad and control board
Note: Contact your local McQuay Representative for assistance.
To locate your local representative, call 800-432-1342 or visit www.mcquay.com.