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Technical Services Manager
North Alabama District
Mingledorff’s Technical Services Group would like to share these steps on how to check faults and HVAC codes to see if you have an “active” fault.
From time to time, our Technical Services Group gets calls where the Service Tech doesn’t know how to check the fault codes stored in the controller. This information is helpful with seeing how the system has been running. The following steps will help your Service Tech see the last 10 events the system has stored.
From the main screen push the arrow on bottom right side of screen.
You will see a baseball cap. Press and hold for 10 seconds (note the screen will change)
You are now in the installation and service screen. Press the arrow on bottom right.
Select the service information.
Select "last 10 system events".
This screen will have the last 10 events. If it's an active fault, the system will not run until the fault is cleared.
By following these steps, you will be able to see the fault history, when the fault occured, and how many times the system has tripped on a fault.
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