Merlin Door Out of Balance – Spring Tension Incorrect

Door will not stay closed; it drifts open a small amount after closing, even with opener disengaged.

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

Possible Causes

Torsion springs over‑wound, Extension springs too strong, Incorrect spring size installed, Cable routing issues

Safety first: Spring adjustment is dangerous and should only be performed by a trained garage door technician.

Test balance: With the Merlin opener disconnected via the emergency release, move the door to mid‑height and release. If it rises or falls significantly, the springs are out of balance.
Do not adjust springs yourself: Contact a professional to correctly size and tension the springs.
After spring service: Reconnect the opener and re‑run travel and force setup on the Merlin unit.

Professional Required 5/5

Garage Door Torsion Springs

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