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Troubleshooting AMX

Error Number
Tube thermal-sensor fault
Error Code / System Message
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Error Question
How do I isolate a Brivo XR285amx tube thermal-sensor fault?
Short Answer
Measure the tube thermal switch/cable resistance; the manual specifies less than 2 ohms and uses repeat measurement at the tube to isolate cable versus tube.
Possible Causes
Open/high-resistance thermal switch or feedback cable; tube thermal protection.
Troubleshooting Steps
Disconnect the specified thermal cable and measure resistance. If above 2 ohms, measure directly at the tube with the feedback cable removed to isolate the tube from the cable.
Parts Areas to Check
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For Related Models
Brivo XR285amx
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