Solar Water Heater Commons Problems in Malaysia
Our company do repair all brands of solar water heater such as replacement of leaked tank , leaked panels; spare parts likes: solar water heater heating element, thermostat, pressure temperature valves and fittings.
Solar Water Heater Service Provider
Our company provide sales & services for solar hot water heating system, contact us for more information!
Office: 03-9543 7431
Mobile: Mr Wong 012-3321190
Mobile: Mr Loy 012-6043731
Solar Water Heater Symptoms and Troubleshooting
Below shows the commons problems’ symptom and solutions.
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| Symptom | Component | Possible cause | Remedy / Check | |
| Not enough hot water / Poor performance | a. | Collector panel | 1. Partially shaded | 1. Reduce shading or relocate collector panels |
| (For first time installation troubleshoot only) | 2. Improper Orientation | 2. Check direction; South is the best direction. North is not suggested. | ||
| 3. Improper tilt | 3. Check tilt; set equal to latitude ±15º | |||
| 4. Improperly plumbed | 4. Check connection from collector to storage. Joint at storage tank must not be at same level or lower than collector. | |||
| 5. Dirty glazing | 5. Clean collector panel’s surface. | |||
| 6. Leakage | 6. Replace the collector panel. | |||
| b. | Piping | 1. Nighttime thermosiphoning (circulation pump only) | 1. Check for pump running at night time. Contact installers. | |
| 2. Leakage | 2. Tighten leaking spot. | |||
| c. | Storage tank | 1. Insufficient size / over usage | 1. Check mixer tap. Possibility of consuming hot water without realising. | |
| 2. High storage losses | 2. Check tank insulation. | |||
| 3. Leakage | 3. Replace the storage tank. | |||
| No hot water in the morning | a. | Storage tank | 1. High storage losses | 1. Check tank insulation. |
| 2. Leakage | 2. Replace the tank. | |||
| b. | Collector panel | 1. Leakage | 1. Replace collector panel. | |
| c. | PT valve | 1. Leakage | 1. Check heater switch. Full-time running back-up heater will cause PT valve to jammed. | |
| Leakage | a. | PT valve | 1. Overheating | 1. Check heater switch. Full-time running back-up heater will cause PT valve to jammed. |
| 1a. Check pump pressure. | ||||
| b. | Storage tank | 1. Manufacturing defect | 1. Replace the tank | |
| c. | Collector panel | 1. Manufacturing defect | 1. Replace collector panel | |
| Booster trip | Heating Element / Thermostat | 1. Defect | 1. Replace heating element / thermostat | |
| 2. Lightning struck | 2. Replace element and install lightning arrestor | |||
| No hot water supply | a. | Pressure pump | 1. Pump not working | 1. Check pressure pump |
| b. | Piping | 1. Inlet valve closed | 1. Open water inlet valve | |
| 2. Water Inlet to storage not connected | 2. Connect water inlet | |||
| 3. No incoming water supply from main | 3. Check main water supply | |||
| Booster not working | Heater switch | 1. Wiring not connected | 1. Check for wiring connection | |
| Noisy system | a. | Check valve | 1. Faulty check valve | 1. Replace check valve |
| b. | Air locked | 1. Shortage of water supply happened | 1. Air bleeding. Open the water tap and wait until the air fully bleeded. Approximately 15 to 20 mins | |
| c. | Piping system | 1. Hammering | 1. Poor plumbing system. Check piping’s mounting. | |