Lifts rarely fail without warning. The door that judders for three weeks, the car that stops 20 mm below the landing, the faint grinding at the top of travel — each one is a component telling you it is near the end. Buildings pay for repairs because nobody was listening. This guide covers the eight faults that account for most service calls, a symptom-to-action table you can hand to your building manager, a maintenance schedule that actually gets followed, and the checks your own staff can do without touching anything dangerous.
The 8 Most Common Elevator Problems
1. Door faults
The leading cause of service calls by a wide margin. Doors cycle hundreds of times a day and collect everything that falls on the sill. Symptoms: doors that reopen for no reason, close slowly, judder, or fail to lock. Causes: grit in the door track, worn rollers, misaligned coupler, dirty light-curtain lenses, worn interlocks.
2. Levelling errors
The car stops above or below the landing. A 10 mm step is a trip hazard; a 40 mm step is a fall. On traction lifts, causes are brake wear, encoder drift or rope stretch. On hydraulic lifts, it is usually oil temperature or valve wear.
3. Unusual noise and vibration
A new noise is always information. Grinding suggests bearing or sheave wear. Clicking on start suggests contactor or brake issues. Rhythmic thumping usually means guide-shoe wear or a rail joint problem.
4. Slow response and long waiting
Often blamed on the machine, usually caused by door dwell time, a faulty call button, or a controller that has lost a floor from its dispatch logic.
5. Frequent tripping
The lift trips on overload or earth fault repeatedly. Causes: a genuine electrical fault, moisture in the shaft wiring, or an undersized supply that dips when the DG switches over.
6. Worn ropes, belts and sheaves
Ropes stretch over years and individual strands break. A worn sheave groove wears new ropes faster than the old ones. Both are visible on inspection long before they become critical.
7. Overheating
On traction lifts, a hot machine points to brake drag or ventilation blockage. On hydraulic lifts, hot oil in an Indian summer is common and causes levelling drift — which is why oil coolers are not optional in hot, busy installations.
8. Control system faults
Intermittent behaviour with no mechanical cause. Cards fail gradually. Dust, humidity and voltage spikes accelerate it. Controllers typically need attention around the 12–15 year mark.
Symptom → Cause → Action
| What you notice | Likely cause | What to do |
| Doors reopen repeatedly | Dirty light curtain, debris on sill | Clean lenses and sill; log if it recurs |
| Doors close slowly or judder | Worn rollers, dry track, operator belt | Raise a service call this week |
| Car stops off-level | Brake wear, encoder drift, hot oil | Service call — do not defer |
| Grinding at top of travel | Sheave or bearing wear | Stop using; call immediately |
| Clicking on every start | Contactor or brake solenoid | Service call this week |
| Lift trips after DG switchover | Supply dip, changeover timing | Check electrical supply and changeover settings |
| Cabin smells of burning | Motor, brake or wiring | Take out of service; call immediately |
| Water in the pit | Monsoon ingress, drainage failure | Pump out, seal, and call — water and controls do not mix |
| Random unexplained faults | Ageing controller | Ask for a controller health assessment |
Two rows on that table are red lines: grinding noise and a burning smell. Both mean stop using the lift.
Why Lifts in India Fail Differently
Global maintenance advice underplays four local realities.
Dust and construction debris. In a building still under fit-out, cement dust settles on door sills, in the pit and on controller boards. This single factor causes more early-life door faults than anything else. Keep the shaft sealed and the pit swept during construction.
Monsoon and pit water. A pit that floods once will corrode buffers and shaft wiring for years afterwards. Check pit drainage before the rains, not after.
Voltage fluctuation and DG switching. Wide voltage swings and changeover transients are hard on drives, contactors and controller boards. A properly configured changeover with the right delay prevents a surprising share of “random” faults.
Overloading and misuse. Moving furniture with the door wedged open, exceeding rated load during shifting, children pressing every button. Overload sensing protects the machine; it does not protect the doors.
The Preventive Maintenance Schedule
Monthly
- Door operation, all landings, all interlocks
- Light curtain function test
- Emergency alarm and intercom test
- Levelling accuracy at every floor
- Cabin lighting, fan and indicators
- Pit inspection for water and debris
Quarterly
- Brake adjustment and lining wear
- Guide shoes and rail lubrication
- Rope tension and visual condition
- Controller connections and contactor condition
- ARD battery load test
Half-yearly
- Overspeed governor and safety gear test
- Buffer condition
- Door operator belt and coupler adjustment
- Earthing resistance check
- Hydraulic: oil level, temperature, seal condition
Annual
- Full load test
- Rope replacement assessment
- Insulation resistance test on motor and wiring
- Statutory inspection under the applicable state Lift Act
- Written condition report with photographs
If your service provider does not produce a written report with readings after every visit, you have no maintenance history — you have visits.
What Building Staff Can Do Without a Technician
The weekly five-minute check
- Ride the lift to every floor and note any off-level stops
- Watch each door open and close fully
- Wave a hand through the door opening to test the light curtain
- Press the alarm and confirm someone answers
- Look into the pit through the lowest landing gap for water or debris
Log it. A dated log turns “the lift feels slow” into “levelling has drifted 15 mm at the third floor over six weeks” — which a technician can act on immediately.
Housekeeping that prevents faults
- Sweep door sills weekly; grit in the track is the top cause of door faults
- Wipe light-curtain lenses monthly with a dry cloth
- Keep the machine area and controller cabinet free of stored material
- Never wash cabin floors with water that can run into the sill
What never to touch
Never open a landing door with a key to look inside. Never enter the pit. Never reset a tripped MCB in the lift panel repeatedly — a lift that trips is telling you something. Never let anyone attempt a rescue who has not been trained on that specific lift.
Choosing and Auditing an AMC
Non-comprehensive covers labour and scheduled visits; parts are billed as used. Suits newer lifts under warranty.
Comprehensive covers labour and parts, usually excluding ropes and cosmetic damage. Suits lifts past year five, where door operators and controller cards start failing.
A good service report contains: date and time in/out, technician name, checklist with actual readings, parts replaced, faults observed and not yet fixed, and a signature from building staff. Anything shorter is a delivery note.
Ask your provider these four questions each quarter:
- What is the current rope condition and estimated replacement date?
- What is the ARD battery voltage under load?
- Which components are showing wear but have not yet been replaced?
- What is the guaranteed response time for a trapped-passenger call, and what was the actual average last quarter?
When to Repair and When to Modernise
Repairs stop being economical when three signals appear together: controller spare parts are on extended lead times, breakdown frequency crosses roughly one call a month, and the annual repair spend approaches a quarter of a modernisation package. At that point, replacing the control system and door operators usually costs less over five years than continuing to patch.
FAQs
How often should an elevator be serviced? Monthly for a lift in regular residential or commercial use, with deeper quarterly, half-yearly and annual checks layered on top. A lightly used home lift can move to quarterly visits, provided the safety tests — light curtain, alarm, ARD battery — still happen monthly.
What causes a lift to stop between floors? Most commonly a safety circuit opening: a door interlock that lost contact, an overload signal, an overspeed governor trip, or a power interruption. The lift is doing what it is designed to do. Passengers should stay inside, use the alarm, and wait for a trained technician.
Why does my lift make a grinding noise? Grinding usually points to bearing wear in the machine, a worn sheave groove, or rope damage. It is one of the few symptoms that justifies taking the lift out of service immediately rather than waiting for the next scheduled visit.
Can we skip service if the lift is rarely used? No. Standing still causes its own problems — brake linings absorb moisture, oil settles, seals dry out and batteries discharge. Low-use lifts fail on the first busy day precisely because nothing was exercised in between.
How long do elevator ropes last? Typically eight to twelve years in normal residential service, less in high-traffic buildings. Replacement is driven by measured criteria — broken wires per lay length, diameter reduction and visible corrosion — not by age alone, which is why rope condition should appear in every annual report.
Conclusion
Maintenance is not a cost that prevents failure. It is a record that tells you what is about to fail, early enough to plan for it. Start the log this week.
Put Your Lift on a Real Maintenance Programme
Express Elevators services passenger, home and goods lifts across India, with written condition reports after every visit, measured readings rather than tick-boxes, and guaranteed response times on trapped-passenger calls.
Send us your lift details and current AMC scope. We will audit it and tell you exactly what is missing.