Is it safe? Check this first
Before asking for service, make sure the machine is in a safe state. Stop and isolate it under your site procedure, and call your safety officer or local emergency services first, if you see:
- smoke, fire, a burning smell or electrical arcing;
- a damaged, bulging or corroded receiver or separator vessel;
- a burst hose, a whipping line or an uncontrolled release of air or oil;
- a safety valve lifting repeatedly;
- anyone injured or exposed to hot oil or compressed air.
Do not loosen fittings to release pressure, bypass a trip, or keep restarting a machine that has shut down on a safety alarm. Repeated restarts after a high discharge temperature trip, in particular, can turn a cooling fault into airend damage.
What type of service do you need?
| Request | Typical situation | Related page |
|---|---|---|
| Breakdown | Machine stopped, tripping or not making pressure | Breakdown diagnostics |
| Routine service | Service hours due: oil, filters, separator, checks | Preventive maintenance |
| Annual maintenance contract | Planned care for one or several machines over a year | Compressor AMC |
| Overhaul assessment | High hours, rising temperature, noise, oil carry-over or falling output | Rotary screw service |
| Dryer or air-quality problem | Water in lines, high dew point, oil in air | Dryer service |
| Portable or diesel machine | Site compressor faults, engine issues, pre-hire checks | Portable compressor service |
| Spare parts only | You will fit the part yourself | Spare parts enquiry |
One request can cover more than one need. A breakdown visit, for example, may also show that the machine is overdue for service. Tell us the main reason for calling and mention anything else you have noticed.
Identify the machine
The fastest way to get the right engineer and parts is a clear photograph of the nameplate. If you cannot photograph it, give:
- Manufacturer, model and serial number.
- Type: oil-injected screw, oil-free screw, reciprocating, centrifugal, portable diesel, blower, dryer or gas compressor.
- Drive: electric motor (kW, voltage) or diesel engine.
- Rated pressure and flow, if known.
- Year of installation and total running hours, and loaded hours if the controller shows them.
- Your asset or tag number, and where the machine is installed.
If you are not sure of the model, say so. A guessed model number is more likely to bring the wrong parts than an honest “not known”.
Describe the symptom
Common symptoms, and what an engineer will usually look at first:
| Symptom | Common causes we check |
|---|---|
| Will not start | Power supply, phase failure, emergency stop, controller fault, residual pressure, starter |
| High discharge temperature trip | Low oil, blocked cooler, poor ventilation, thermostatic valve, oil filter, sensor; normal is typically about 75–95 °C |
| Low pressure or slow build-up | Demand above capacity, leaks, inlet valve, air filter, separator or dryer pressure drop |
| Oil carry-over | Separator element, scavenge line, oil level, minimum pressure valve, running at low pressure |
| Water in the air lines | Dryer fault, drains blocked, dryer bypassed, overloaded dryer, high inlet temperature |
| Noise or vibration | Bearings, coupling, belt, motor, loose mounting, airend wear |
| Frequent load and unload | Small receiver, narrow pressure band, control settings, leaks |
| Diesel portable losing pressure or overheating | Air filter choked by dust, fuel system, engine cooling, high ambient, regulator |
Write down the exact alarm message or code shown on the controller. Photographs of the controller screen, the pressure gauges and any leaks are often more useful than a long description. A short video with sound helps when the complaint is noise, vibration or a valve that cycles rapidly, as long as it is recorded from a safe position with guards in place.
When and how did it start?
The pattern of a fault often points to its cause. Tell us:
- When the problem was first noticed, and whether it is constant or comes and goes.
- Whether it happens at start-up, on load, on unload, at peak demand or on hot afternoons.
- Any recent change: a service, a part replaced, a new machine on the network, a power failure or a change in production.
- Whether the alarm repeats, and how many times the machine has been restarted.
- Readings if available: discharge pressure, discharge temperature, ambient temperature and running hours.
A machine that trips on high temperature only in the summer afternoons in Telangana and Andhra Pradesh, when ambient is often above 40 °C, usually has a cooling or ventilation problem. One that trips within minutes of every start points more towards oil flow, the thermostatic valve or a sensor.
Site and access information
- Site address, contact person and phone number.
- Working hours and any gate pass, permit or safety induction needed.
- Whether the machine can be shut down for service, and for how long.
- Access for vehicles and lifting if heavy parts may need to be removed.
- Whether standby air is available, or whether you need a rental machine while yours is repaired.
If production cannot stop, tell us. We can plan service around a shutdown or arrange a rental compressor from our own fleet to cover the repair period.
What happens after you send the enquiry
- We log the request and confirm we have received it.
- A service engineer reviews the details and photos, and may call to ask questions.
- We advise the likely cause and the next step: remote guidance, a site visit, workshop repair, a parts quotation or a planned service.
- We quote for the work and parts, and start once you approve.
- After the work we share a report of what was found, what was done and what we recommend.
A submitted enquiry is a request for assessment. It is not a diagnosis, a dispatch commitment or an approval to carry out work, and we confirm timing for each job.
Preparing for a planned service visit
A little preparation makes a routine service quicker and more thorough:
- Share the running hours and the last service report, so we bring the right filters, oil and separator element.
- Agree a shutdown window long enough for the machine to cool; oil and surfaces must be safe to touch.
- Arrange isolation and lock-off according to your site rules, and a person who can authorise it.
- Clear access around the compressor, dryer and receiver, and keep the condensate drain points reachable.
- Note any minor issues the operators have seen, such as a drain that sticks or a gauge that reads oddly.
- Tell us if you want readings recorded for your records: pressures, temperatures, dew point and load hours.
After the visit, keep the report with the machine history. A consistent record of hours, readings and parts replaced is the best basis for planning overhauls and judging when a machine is wearing.
How Reddy Compressors helps
Reddy Compressors has served industry since 2002 from Tarnaka, Secunderabad. Over 20 service engineers and technicians carry out breakdown repair, routine service, AMCs, overhauls and air audits across Telangana and Andhra Pradesh, with project-based support elsewhere in India where feasible. We work on ELGi, Atlas Copco, Ingersoll Rand, KAESER, Chicago Pneumatic, Doosan, Kirloskar, Sullair and other makes as an independent multi-brand specialist, not an authorised dealer. We have tie-ups with all major and reputed brands. We also service gas compressors, centrifugal compressors, blowers and dryers, and provide service and spares for axial compressors. Parts are identified from the make, model, serial number, nameplate photo or old part, and fit is confirmed before quoting. On rental and hire jobs our machines are serviced every 300 running hours, the same discipline we bring to customer machines on planned maintenance.
What to send us
- Nameplate photo, or make, model and serial number.
- Running hours and date of the last service.
- The symptom or alarm code, with a photo of the controller screen.
- When it started and what the machine was doing at the time.
- Discharge pressure, temperature and ambient temperature if available.
- Site location, contact person and access constraints.
- Whether you need standby air during the repair.
Frequently asked questions
How do I book a compressor service in Hyderabad?
Call +91 99590 60718 or +91 92468 88812, send a WhatsApp message to +91 99590 60718, or email reddycompressors@gmail.com. Give the make, model, serial number, running hours and site address, with a nameplate photo. We will review the details, confirm what service is due and agree a date. Our teams cover Hyderabad, Secunderabad and the whole of Telangana and Andhra Pradesh.
Why does my screw compressor trip on high temperature?
Common causes are low oil level, a blocked oil cooler, poor room ventilation, a faulty thermostatic valve, a choked oil filter or a failed temperature sensor. Normal discharge temperature is typically about 75–95 °C. Note when the trip happens and the ambient temperature, then check oil level and cooler cleanliness with the machine isolated. Do not keep restarting it.
What details do you need for a compressor breakdown call?
We need the machine make, model and serial number, the alarm or symptom, when it started, what the machine was doing at the time and its running hours. Photos of the nameplate, controller screen and any leak or damage help greatly. Tell us the site location and whether you need a rental compressor while yours is repaired.
Do you service compressors of all brands?
Yes. We service ELGi, Atlas Copco, Ingersoll Rand, KAESER, Chicago Pneumatic, Doosan, Kirloskar, Sullair and other makes as an independent multi-brand specialist. We are not an authorised dealer of any brand. Parts are identified from the nameplate, serial number or old part, and we confirm fit before we quote, and every quote states whether parts are genuine or named aftermarket.
Can you provide a rental compressor while mine is being repaired?
Yes. We rent from our own fleet of diesel and electric compressors of 50–2,000 cfm and 2–30 bar (29–435.1 psig). Tell us the pressure, flow, air quality and power available on site, and how long you expect the repair to take. We can then propose a suitable machine with hoses, and a dryer where clean, dry air is needed.
Should I choose an AMC or pay for service when needed?
An annual maintenance contract suits plants that depend on compressed air every day: services are planned, records are kept and one team knows your machines. Pay-per-visit can suit a single, lightly used machine. Tell us how many machines you run, their hours and their criticality, and we will explain which arrangement fits better.
Related pages
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Share the application, pressure, air demand and any photos or nameplates. We will reply with the questions a service engineer would ask first.