Answer
Feb 09, 2026 - 08:03 AM
Manually forcing the damper can strip or break the motor gears.
Can the damper be broken by turning it by hand when the system was working correctly ?
We have a GVD – six damper in our heating system we believe it was broken when the repair man turned it by hand. Aquastat was likely problem.
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Open Feb 09, 2026 - 08:03 AM
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Gas Vent Dampers, GVD Models - Field Controls
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