window crank operator

Why Isn’t My Window Crank Working Anymore?

There’s nothing quite like cracking open a window to let in a spring breeze or cool evening air. But when your window crank decides to stop cooperating, it can turn a simple pleasure into a frustrating chore. If you’ve found yourself wrestling with a window that won’t budge or a crank that spins but goes…


window crank operator

There’s nothing quite like cracking open a window to let in a spring breeze or cool evening air. But when your window crank decides to stop cooperating, it can turn a simple pleasure into a frustrating chore. If you’ve found yourself wrestling with a window that won’t budge or a crank that spins but goes nowhere, you’re not alone.

At Revitalize Windows and Doors, this is a frequent question for us. And the better news? Nine out of ten times, it’s something that can be repaired — no need to get rid of the whole window. Discovering what’s come to act up is the first step toward having that smooth, effortless glide back. Let’s get to the bottom of some of the most frequent culprits behind crank malaise — and what you can do about it.

1. Worn-Out or Stripped Gears

worn out and stripped window crank gear.

This is likely the most common issue we encounter. Inside every crank operator are a set of small gears — usually metal or heavy-duty plastic — that turn the arm and open or close the window. Over time, repeated use can wear down the teeth on these gears, especially if the window has been resistant to opening for a while.

What You May Notice:

* The handle will rotate freely but the window will not move.

* When you rotate the crank, there is a slight clicking or grinding sound.

* Greater resistance before suddenly slipping.

The Fix:

Most people need to replace the entire crank operator. Fortunately, this is a relatively quick repair. With it installed, your window will be opening and closing like new again — better than it likely has in years.

2. Rust or Corrosion

rusted window crank operator

Windows that are exposed to high humidity, ocean air, or just not opened in years tend to rust and corrode. Moisture may work its way into moving parts of the crank operator or the hinge arms and gradually freeze things in place.

What You Might Notice:

* The crank is stuck or won’t move.

* Squealing and grinding metal.

* Visible rust or buildup on the hardware or hinges.

The Fix:

Minor rust may be cleaned up and returned to operating condition with a penetrating lubricant and some patience. But when corrosion has gone through the metal parts or locked up pivot points, replacement parts are usually called for. An expert will know if a cleaning will do or if new hardware is the smarter long-term answer.

3. Lack of Lubrication

dirty window crank operator

As with anything mechanical, window components need regular maintenance to keep on working smoothly. Unfortunately, window cranks are usually left alone until they fail.

What You Might Notice:

* The crank is hard to turn or sticky.

* No apparent damage, but the action isn’t smooth.

The Fix:

Using a silicone-based spray lubricant can be a miracle worker. Be certain to use one designed for window hardware, not household oils or grease, which can attract dirt and make the problem worse in the long run. Proper maintenance can extend years to the life of your window mechanisms.

4. Debris or Obstructions

awning window crank

Sometimes, the crank is working perfectly — but something’s preventing the window from moving. Dirt, dust, leaves, or even dried paint can clog the sash or get into the tracks and prevent movement.

What You May Notice:

* The crank will rotate, but the window won’t move very far.

* Grinding or scraping when you try to open it.

* Buildup along the edges or sill.

The Fix:

Take a good look at the space around your window and clean it out. Clear away any obvious obstructions from the sash or the hinges, and ensure nothing is stuck within the track. Something as tiny as a pebble can provide enough resistance to bring the window to a halt.

5. Bent or Off-Track Window Frame

casement window crank operator

Over time, especially in wood-frame homes, windows might move out of track due to shifting foundations, season, or general wear and tear. When the sash no longer fits in the frame as it should, the crank mechanism doesn’t catch quite like it should.

What You May Notice:

* The window sticks halfway through opening or sticks unevenly.

* You feel resistance even if you do have a functioning crank.

* The sash is crooked or won’t fit into the frame.

The Fix:

This might be a bit more of a skill set. A professional window technician can adjust the sash or make adjustments to the hardware to get it working again. In situations where that’s not possible, swapping out the crank model or hinge arm for one that’s slightly different can compensate for the slight misalignments and get everything working like new again.

Let’s Get It Cranking Again

We know how frustrating a stubborn window is. The good news? Such problems are not often a sign that you need a full window replacement. In fact, most problems can be fixed with the replacement of an easy part or adjustment — and at Revitalize Windows and Doors, that’s exactly what we do.

We arrive armed with years of experience and a fully supplied inventory of window hardware on each job, so we can diagnose and repair issues in the moment. If your crank is spinning circles or won’t budge at all, we have the equipment — and the know-how — to get it back in motion.

Trouble with a Window Crank?

Let Us Take a look!

Call us at (416) 906-4395

Or schedule a repair online
Breathe in the fresh air once again — without the battle.
Revitalize Windows and Doors — Restoring comfort, one crank at a time.


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