Yearly service checklist
| Check | Why |
|---|---|
| Clean evaporator coil and air filter | Dust lowers airflow and COP |
| Check refrigerant pressures and temperatures | Low refrigerant reduces heating and stresses the compressor |
| Check water flow, strainer and pump | Low flow causes high-pressure trips |
| Inspect magnesium anode (tank) | Protects the tank from corrosion |
| Test pressure and temperature relief valve | Essential safety device |
| Check electrical connections and current | Prevents overheating and faults |
| Check condensate drain | Avoids water damage |
| Review controller settings and error log | Confirms ECO mode and correct temperature |
Common problems and what they mean
| Symptom | Possible cause |
|---|---|
| Water not hot enough | Set point too low, high demand, low refrigerant, blocked coil |
| Unit runs all the time | Hot water leak, faulty sensor, undersized system |
| High electricity bill | Backup element always on, high temperature setting |
| Water leaking | Relief valve discharging, fitting leak, condensate drain blocked |
| Error code on display | Flow, pressure or sensor protection; note the code and call a technician |
| Noisy operation | Loose panels, worn fan bearing, vibration mounts |
Spare parts
Pecol stocks spare parts for its hot water systems, including heating elements, thermostats, pressure relief valves, anodes, control boards, sensors and fittings. See our spare parts page for heating element and thermostat specifications, or download the spare parts catalogue (PDF) or WhatsApp us a photo of the part or the unit's label.
Maintenance contracts for commercial buildings
Hotels, hospitals and factories can arrange scheduled maintenance for heat pumps, calorifiers and storage heaters, with priority response. Regular maintenance keeps COP high and avoids unplanned shutdowns.
Servicing other brands
Pecol's technicians mainly service Pecol systems. For other brands, contact us with the model details and we will advise whether we can help or whether you should contact that brand's authorised service centre.