In Riyadh, where summer temperatures climb past 47 degrees, a commercial chiller is the hardest working machine in your building. Offices, malls, hospitals, hotels, and villa compounds all depend on it, and when it fails during a heatwave, comfort collapses while emergency repairs cost far more than planned service ever would.
That is why a consistent chiller maintenance checklist matters. It turns surprise breakdowns into scheduled, affordable care. At SheelTalab, our certified technicians follow this exact 7 point chiller maintenance checklist on every commercial HVAC visit across Riyadh. Our Central HVAC and Ducted Systems service starts at 350 SAR (was 450) and includes a full inspection, heavy duty coil cleaning, duct sanitization, and digital airflow balancing, backed by our 45 minute rapid dispatch, 24/7 availability, 30 day golden warranty, and a 4.9/5 rating from more than 18,500 completed jobs.
The 7-Point Chiller Maintenance Checklist
The seven checks below make up the complete maintenance program our teams run on every visit. Together they protect efficiency, extend equipment life, and keep your cooling bills under control through the longest Riyadh summer.
1. Inspect Condenser and Evaporator Tubes
Fouled tubes are the number one silent efficiency killer. Riyadh dust settles on condenser coil faces within weeks, and scale or biofilm builds inside water cooled tubes, forcing the compressor to work harder for the same cooling. Our technicians inspect coil faces and tube conditions on every visit, brush clean water cooled condenser tubes during annual shutdowns, and wash air cooled coils with proper chemical cleaners. Clean heat transfer surfaces alone can restore several percentage points of lost efficiency.
2. Check Refrigerant Charge and Scan for Leaks
Low refrigerant means warm supply air, rising electricity bills, and a compressor running hot toward an early death. Every chiller maintenance checklist must include a leak scan at compressor fittings, oil pump joints, valve connections, and relief valves, plus a suction and discharge pressure reading compared against the manufacturer specification. If charge is low, the leak is found and repaired first, then the system is recharged to exact spec. You can read more about the warning signs in our guide to AC Freon refill in Riyadh, which covers the same principles for smaller systems.
3. Test Compressor Performance and Oil Levels
The compressor is the heart of your chiller, and its oil is its blood. We check oil level and condition, listen for abnormal noise or vibration that signals bearing wear, and compare motor amperage against the nameplate rating under load. Oil analysis for acidity, moisture, and metal content tells us about internal wear long before a failure shows up. On a disciplined service visit, oil filters are changed annually and oil itself is replaced on the manufacturer schedule, typically every few years depending on runtime.
4. Verify Sensors, Controls, and Setpoints
Drifted temperature sensors and misconfigured setpoints quietly waste energy for months. Our technicians verify chilled water temperature sensors and calibrate where needed, confirm the leaving water setpoint matches the building load, and test every safety control, including high condenser pressure cutout, low oil pressure, freeze protection, and motor overload protection. We also review chiller sequencing, because running one chiller at a healthy load beats running two at inefficient part load. This control check is where a professional chiller maintenance checklist catches the problems owners never notice.
5. Maintain Pumps, Valves, and Water Flow
Chilled and condenser water pumps, motorized valves, and strainers keep the whole plant breathing. We clean strainers on both circuits, check pump and motor alignment, lubricate bearings per manufacturer guidance, and confirm water flow rates sit within the recommended range. Valves are stroked to confirm full travel, and we check for water hammer or cavitation noise that points to flow problems. Poor water flow is a common cause of nuisance chiller trips in Riyadh buildings, and it is entirely preventable.
6. Treat Condenser Water and Prevent Scale
Riyadh water is hard, and an untreated cooling tower grows scale, algae, and sediment fast. A proper water treatment program controls pH, total dissolved solids, and biological growth so heat exchangers stay clean. Our visit includes checking treatment chemical levels, inspecting tower fill and nozzles, and confirming blowdown and makeup water flow. The U.S. Department of Energy recommends checking entering and leaving water temperatures and keeping coil loops clean as core cooling equipment operations and maintenance practice, and we follow exactly that discipline.
7. Log Operating Data on Every Visit
The final item on any serious maintenance program is also the simplest: write everything down. We record entering and leaving water temperatures, refrigerant pressures, oil pressure and temperature, motor amps, and alarm history on every visit. Trends reveal slow degradation, like a gradually rising condenser approach temperature, months before it becomes a breakdown. Good records also protect your warranty, because manufacturers expect documented maintenance when a claim is filed.
How Often Should You Run This Chiller Maintenance Checklist?
Frequency depends on how hard your chiller works. In Riyadh, where chillers run near full load for six months straight, we recommend visual and data checks monthly during summer, professional service quarterly, and a full annual shutdown service covering tube cleaning, oil and filter changes, and safety control testing. The easiest way to stay on schedule is an annual AC maintenance contract in Riyadh, which bundles all of this into one predictable plan. Pair chiller care with clean air distribution too, since dirty ducts undo good chiller performance, which is why many facility managers add AC duct cleaning in Riyadh to the same visit.
Warning Signs Your Chiller Needs Professional Service Now
Do not wait for the next scheduled visit if you notice warm or inconsistent supply air, electricity bills climbing without explanation, short cycling or frequent alarm resets, unusual grinding or rattling from the compressor, or water leaks around the plant room. Any of these means something on the checklist is already overdue. Our guide to central AC repair in Riyadh explains the warning signs in more detail, and our technicians respond within 45 minutes, 24/7, anywhere in Riyadh.
A chiller that gets this chiller maintenance checklist on schedule runs cooler, costs less to operate, and lasts years longer than one serviced only when it breaks. Book your commercial HVAC inspection with SheelTalab today: Central HVAC and Ducted Systems service at 350 SAR (was 450), certified technicians, genuine parts, and a 30 day golden warranty on every job. Call 0570328344 or 0570328344, or message us on WhatsApp for 45 minute rapid dispatch anywhere in Riyadh.