Your Elevator Is Talking: Learn to Listen
A quiet, smooth-running elevator is a sign of good maintenance. A noisy or vibrating one is asking for attention. Many South Florida building owners and managers ignore these noises, trying to normalize them or postpone the call to the technician. That mistake can turn a minor (and cheap) problem into a major (and expensive) failure.
This guide teaches you how to identify what each type of noise or vibration in your elevator means, so you can act before the problem escalates.
Noise #1: Metallic Bang at Start or Stop
How it sounds: A sharp metallic thud when the elevator starts moving or arrives at a floor.
Most likely cause: In hydraulic elevators, this sound frequently indicates that the hydraulic oil is low or contaminated, causing an abrupt piston start. In traction elevators, it can indicate a problem with the buffers or the variable frequency drive (VFD).
Urgency level: Moderate. It does not indicate immediate danger, but the damage progresses quickly if ignored. Schedule a technical inspection in the next 1-2 weeks.
Noise #2: High-Pitched Squealing During Travel
How it sounds: A constant squealing while the elevator goes up or down.
Most likely cause: The guide rails need lubrication. This is one of the most common problems and also one of the easiest to resolve. Alternatively, it can indicate that the guide shoes or rollers are worn and need replacement.
Urgency level: Low to moderate. If the squealing has been going on for weeks or months and no one has checked it, the rollers may have caused damage to the rails, turning what was a roller change into a rail-truing job, which is much more expensive.
What you can do: Document the frequency of the noise (every trip? only going down?) and share that information with the technician. It helps with a faster diagnosis.
Noise #3: Irregular Banging at the Doors
How it sounds: An intermittent rattling or banging when opening or closing the doors, or while the elevator travels between floors.
Most likely cause: The door panels have excessive play due to worn door rollers or problems with the door operator. It can also be caused by damaged or missing gibs (lower door guides).
Urgency level: High. Doors are the most critical safety system on the elevator. Doors that don't operate correctly can fail to maintain the interlock, which could allow the elevator to move with the doors open. Call a technician this week.
Noise #4: Constant Electrical Hum
How it sounds: A low electrical hum coming from the machine room or the cabin even when the elevator is at rest.
Most likely cause: Transformers, contactors, or variable frequency drives that are failing or need adjustment. In South Florida's hot climate, excessive heat in the machine room can deteriorate electronic components faster than normal.
Urgency level: Moderate to high, especially if the hum is accompanied by a burning smell. A burning smell is always an emergency signal: take the elevator out of service and call immediately.
Noise #5: Excessive Vibration During Travel
How it sounds/feels: The cabin vibrates noticeably during the trip, especially at normal speed.
Most likely causes:
- Misaligned or damaged guide rails
- Unbalanced counterweight (in traction elevators)
- Motor or blower out of balance
- VFD problems generating irregular electrical supply to the motor
Urgency level: High. Excessive vibration is not only annoying for users but accelerates wear on all system components. Every trip with vibration is accelerated wear on bearings, rails, and electrical connections.
Noise #6: Bump When Arriving at a Floor
How it sounds: A noticeable bump when the elevator arrives at a floor, as if it 'drops' the last few centimeters.
Most likely cause: The leveling system is out of calibration. The elevator is not decelerating smoothly before stopping but stopping abruptly.
Urgency level: Moderate to high. Besides being uncomfortable, the repeated bump stresses the cables, motor, and brakes. In hydraulic elevators, it may indicate that the control valves need adjustment or replacement.
What You Should NOT Do
- Do not ignore noises for more than 2 weeks. Mechanical problems never resolve themselves and almost always get worse.
- Do not try to lubricate the rails yourself. Using the wrong lubricant can damage components or create dangerous conditions.
- Do not put the elevator out of service without notifying all residents, especially if there are elderly people or those with limited mobility in the building.
- Do not wait for the annual inspection. A state inspector can order the immediate shutdown of the elevator if they detect safety issues.
How to Document the Problem to Help the Technician
Before calling for technical service, note the following information:
- When does the noise occur? (Only at start? During the entire trip? When stopping?)
- Does it happen on all floors or only some?
- Did the noise change recently, or has it been present for months?
- Does the noise come with any unusual cabin vibration or movement?
- Is there any associated smell (burning, oil)?
This information saves the technician time and can reduce service costs.
BROUSS Elevators: Precise Diagnosis, Fast Response
Our technicians in South Florida are trained to diagnose noises and vibrations precisely, use vibration analysis equipment when necessary, and repair the root cause—not just the symptom.
Is your elevator making noises it shouldn't? Don't wait for a complete failure. Call BROUSS at 786.308.9128, available 24/7. We respond in under 2 hours.
