Troubleshooting & Maintenance
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Why Is My Door Closer Making a Hissing Sound? Understanding Air in the Hydraulics
If you’ve recently walked through your office or storefront door and heard a distinct “hissing” or “whooshing” sound coming from the door closer, you might be tempted to ignore it. After all, if the door is still closing, it’s working—right? Unfortunately, a hissing sound is often the first audible warning of a serious internal failure.…
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How to Adjust a Door Closer for Cold Weather: Winterizing Your Entrance
As the temperature drops, you may notice that your commercial doors start behaving differently. A door that worked perfectly in July might become sluggish, heavy, or fail to latch entirely by December. This isn’t just a coincidence; it’s a matter of physics. If your building’s entrance isn’t winterized, you risk losing expensive heated air, compromising…
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The Most Common Reasons Commercial Doors Won’t Latch (And How to Fix Them)
A commercial door that fails to latch is more than a minor inconvenience—it is a significant security breach. Whether it’s an exterior storefront or an interior fire door, if the latch bolt doesn’t fully engage with the strike plate, your building is unsecured. If you are struggling with a door that stays “ajar” or bounces…
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How to Fix a Commercial Door That Slams: A Step-by-Step Adjustment Guide
When it comes to door closers, oil leakage is not the only problem that can occur; there is also the issue of the door slamming, which is more than just a loud annoyance. It is a safety hazard that can pinch fingers, a maintenance nightmare that damages hinges and frames, and a potential violation of…
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Why Is My Commercial Door Closer Leaking Oil? (Signs of Internal Seal Failure)
If you have noticed a mysterious dark puddle on the floor beneath your door, or a greasy film coating the metal body of your door closer, you have a problem that shouldn’t be ignored. A leaking commercial door closer is more than just a cleaning nuisance; it is a clear indicator that the device’s internal…