Answer
Dec 23, 2025 - 05:31 AM
The issue may be caused by a weak millivolt battery that isn’t providing enough power to open the gate properly, or it could be related to the controller.
my fsm is 5 years old and it has difficulties to open
when the damper open, you can hear a noise like a old quicking door
Status:
Open Dec 23, 2025 - 05:31 AM
1answer
FLUE SENTINEL AUTOMATIC FLUE DAMPERS, FSM MODELS - Field Controls
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