The warranty for electric motor repair in 2026 from professional workshops in Tashkent ranges from 6 to 12 months and covers windings, insulation, bearing units and balancing quality. This article is a practical guide for technical directors and chief mechanics: what exactly is covered by the Elektromotors warranty, what cases are exceptions, how to properly file a claim and retain the right to free defect elimination.
Standard warranty periods in 2026
The warranty period depends on the type of work performed and operating conditions. The more complex the repair and the higher quality the materials, the longer the workshop’s period of responsibility.
| Type of work | Warranty period | What the guarantee confirms |
|---|---|---|
| Routine repair, cleaning, purging | 3 months | Build quality, no lubricant leaks |
| Replacement of bearings | 6 months | Correct fit, no increased noise and vibration |
| Stator or rotor rewinding | 12 months | Insulation resistance, no interturn short circuit |
| Major repair | 12 months | Full operation of the unit in nominal mode |
| Rotor balancing | 6 months | Vibration level within GOST ISO 10816 |
| Urgent repair | 6–12 months | Same conditions as for standard repair |
In Tashkent, some small workshops offer a “3 month guarantee on everything” - this is a signal of low quality materials or the lack of a test bench. A serious service is not afraid to give 12 months for rewinding the electric motor winding, because it uses class H impregnating varnishes and certified winding wire.
What is included in the warranty: mechanical and electrical defects
The warranty covers defects caused by poor quality work or hidden defects in materials. We conditionally divide them into two groups.
Electrical defects
- An interturn short circuit in the stator or rotor winding in the absence of voltage surges in excess of the rated ones.
- Insulation breakdown on the housing when the insulation resistance does not correspond to the measurement at issue.
- Breakage of the winding wire at the place of winding or soldering.
- Phase resistance does not correspond to the stated values in the test report.
- Current unbalance exceeds 5% when operating in nominal mode.
Mechanical defects
- Increased noise and heating of bearing units with correct alignment.
- Shaft runout exceeding the values of the balancing protocol.
- Loose seating of bearings in shields before the warranty period.
- Lubricant leakage due to incorrect installation of seals.
- Looseness of the terminal box and contact connections.
For each repaired motor, a test report is issued with measurements of insulation resistance (megaohmmeter for 1000 V or 2500 V for high-voltage), DC winding resistance, no-load current and vibration level. These documents are the basis for consideration of the claim.
What is NOT included in the warranty
The warranty does not cover damage caused by improper use on the part of the customer. This is an important point: without it, the workshop would take on the risks of the entire production.
- Voltage surges and phase imbalance. If the measured voltage in the network exceeded 10% of the nominal value or one of the phases was missing, the warranty is void.
- Torque overload. Continuous operation of the motor with a current exceeding the rated current by more than 15%.
- Lack or malfunction of protection. The engine must operate through a thermal relay or electronic protection configured according to the passport.
- Ingress of water or aggressive media. If the IP rating of the housing does not meet the operating conditions.
- Unauthorized opening. Self-disassembly will void the engine warranty.
- Mechanical damage to the body. Impacts, falls, deformation of paws.
- Wear of brushes and slip ringson wound-rotor motors is a consumable item.
- Operation in modes not provided for in the passport (long start-up, frequent reverses without conversion).
Before putting the engine into operation, we recommend checking the network with a tester and installing thermal protection. This insures both the customer and our industrial repair workshop from controversial cases.
How to file a warranty claim
If the engine fails during the warranty period, you need to act according to a clear algorithm. Delay or attempt to repair yourself will deprive you of the right to free repair.
- Stop the engine and de-energize the line.Do not try to restart - this may worsen the defect.
- Record the circumstances. Describe the operating mode, failure time, presence of extraneous noise, smell, vibration.
- Take readings of the protections. Thermal relay setting, current until failure, ACS logs if available.
- Contact the workshop.Call or email Elektromotors in Tashkent within 24 hours from the moment the defect is discovered.
- Hand over the engine and documents. Transportation is usually at the expense of the customer; If the warranty case is confirmed, expenses are reimbursed.
- Wait for the inspection report. The engineer determines whether the case is covered by warranty. Review period is up to 5 working days.
- Receive a repair or a reasoned refusal. Upon confirmation, free repair within 3-10 business days. In case of refusal - a conclusion indicating the reason.
Documents required for warranty
Keep the complete package of documents from the moment you accepted the engine from repair. Without them, the claim is considered, but the process is delayed.
- Contract or invoice for work performed.
- Act of completed work with a list of operations.
- Test report with measurements at the time of issue.
- Warranty card with the seal and signature of the master.
- Engine passport or a copy thereof.
- Operation log (for enterprises with a PPR system).
Examples of warranty cases from practice
Several real cases from a workshop in Tashkent for 2025–2026, which help to understand the logic of decision making.
Case 1. After rewinding, a 45 kW motor worked for 4 months and stopped due to an interturn short circuit. Network measurements showed the voltage was within normal limits, the protections worked normally. The case was declared under warranty and rewinding was performed free of charge within 5 days.
Case 2. A 15 kW motor 2 months after replacing the bearings began to hum. The examination showed operation without a coupling with direct load through a rigid coupling - overloading the shaft. Warranty denied, violation of operating conditions.
Case 3. After a major overhaul, the MTH 132 crane engine operated for 8 months and failed due to a broken rotor winding. The measurements showed that the network complied with the standards. The case is under warranty, the repair was carried out free of charge with the replacement of the winding wire.
How to extend the service life after repair
A guarantee is insurance, but the customer’s goal is to not need it. Following simple rules extends the engine life by 30–50% beyond the rated value.
- Carry out scheduled diagnosis every six months.
- Monitor the temperature of the housing and bearings with a non-contact thermometer.
- Keep the ventilation grilles clean.
- Change bearing lubrication according to the schedule in the passport.
- Check the alignment of the shafts after each coupling removal.
Conclusion and contacts
Warranty for electric motor repair from Elektromotors in Tashkent is 6-12 months of documented responsibility for the operation of windings, bearings and balance. The warranty covers manufacturing defects, but not misuse; its conditions are transparent and enshrined in the warranty card.
Do you want to receive a repair with a confirmed warranty? Contact Elektromotors engineers - we issue a test report and a warranty card for each unit. Learn more about services or immediately go to contacts.