Lifting India the Smarter Way

Top 5 reasons why your elevator is going through a Malfunction


Did you know that you can reduce your energy consumption by 15% by doing a regular maintenance?

Your elevator becomes prone to equipment failure if a proper inspection is not conducted through preventive maintenance. Therefore, for two most alarming reasons which we just stated above, you must be regular in getting your elevator maintenance done consistently and regularly.

What are the signs that your elevator needs a hand are:

  • Long wait times and frequent breakdowns 
  • Overheating
  • High energy use
  • Low power factor 

Some of them might not be very outwardly problematic but can cause you hidden costs that will affect the efficiency of your elevator on a longer run.

So we have listed 5 common problems and solution we have listed that you can face with your elevator.

1. Worn Sheaves

Due to extra wear on the ropes while holding the elevator, it leads to wear on the sheaves as well. This becomes a vicious cycle of destruction that result in damaging both the vital components of the elevator.

But worry not, as this situation can be averted easily. You can get the Sheaves Re-grooved or even replaced if you can, that will prevent ‘premature hoist failure’. Also, you should check the groove profiles so that you know the exact fit between the sheave and the ropes. There are tools available which are quite available with magnetic standards and a straightedge that helps in checking the grooves  visually whether they are evenly wearing on the sheave or not.

2. Power Failure

Generally the commercial building utility systems gets a huge power demand from the elevators. Such pressure on the system’s voltage which will affect the motor operations and can very damage the elevator system as well. Especially the elevators having a history of operation issues or motor failures must undergo such quality surveys regarding the power they consume.

This can be detected through Infrared thermography. In that, any sudden drastic temperature changes can be detected by locating the ‘trouble spots’, anticipating any failure in the system averting the worse. They will also be helpful in detecting regular, day to day faults like under or over voltage and are easily seen when surveys done and fuses are also located conveniently with infrared imaging before any major damage occurs to the motor.

3. Problem: Contamination

Contamination in an elevator can happen in the following ways:

  • Metal particles which are worn out when get released in the oil
  • Worn-out seals or improper lubrication 

All the above can disrupt the functioning and cause contamination in the elevator system.

To avert the situation, one can opt for an Oil Analysis, in which oil is examined thoroughly and the properties of the oil help in indicating any wear or contamination which is probably occurring in a motor.

As a preventive measure, you would look for these signs that indicate contamination like:

  • High presence of bronze in the gear case 
  • High concentration of aluminum in your hydraulic tank 

4. Bearing malfunction

It is seen that half the times motor failures are caused because of bearing malfunction.

As per one article by renown electric:

“Noisy bearings are often attributed to vibrations within the motor. While variable frequency drives are helpful for decreasing your motor’s energy use, they introduce common mode current — a damaging byproduct that can increase these vibrations to dangerous levels through premature bearing wear caused by stray current.”

You can address this issue with the usage of inductive absorber that helps in absorbing the currents and also protecting your system from the further breakdowns.

On the other hand, you need to make sure that every electrical switch is properly secured on the ground so that while in motion, the elevator doesn’t cause friction and make electrical noise.

5. Misaligned motor drive

The shaft alignment becomes critical if any electric motor is closely present to any other piece of the elevator. This case requires correct alignment to avert the situation so that motor bearings don’t wear. Advanced laser measuring equipment can help in detecting the shaft misalignment or you can also go with string and a straightedge.

There is also a third way which can deflect the damages, like you must consider geared machines to be purchased. Those machines have flange mounted motors which in the first place doesn’t require alignment even if the disassembling occurs.

So, you must have this conversation with your elevator provider so that they threats are anticipated before they can happen for real.

By POLO Elevators - Elevator / Manufacturers & Suppliers

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