Is your air conditioner not switching between cooling and heating modes or showing signs of poor performance in inverter models? The issue might be with the four-way valve — a key component in reversible (hot & cold) AC systems. Sajilo Sewa offers expert Four-Way Valve Change services for 1– 2 Ton AC units across Kathmandu, Bhaktapur, and Lalitpur. 🛠️ What’s Included in Four-Way Valve Change Service: ✅ System diagnosis to confirm valve failure ✅ Safe removal of the faulty four-way valve ✅ Installation of a compatible high-quality 4-way valve ✅ Refrigerant line reconnection and vacuuming ✅ Leak and pressure test 💬 Frequently Asked Questions (FAQs) Q1: What is the function of a four-way valve in an AC? It controls the flow of refrigerant, allowing the AC to switch between cooling and heating (in hot & cold systems). Q2: What are the signs of a faulty four-way valve? AC is stuck in only cooling or heating mode Poor or no temperature control The compressor runs, but no cooling/heating System pressure imbalance Q3: Is this part available for all AC brands? Yes, we can source or install compatible four-way valves for most major AC brands including Daikin, LG, Samsung, Gree, Panasonic, etc. Q4: Will gas refill be needed after replacement? In many cases, yes. Replacing the valve often requires refrigerant recovery, vacuuming, and refilling, which will be quoted separately. Q5: How long does valve replacement take? Typically 2 to 4 hours, depending on accessibility and AC type. Q6: Can this service be done onsite? Yes, most 1–2 Ton units can be serviced at your location. For complex cases, workshop handling may be required. 📞 Book Your Four-Way Valve Change Today! Fix your AC’s heating and cooling issue with Sajilo Sewa’s trusted Four-Way Valve replacement service. Fast, affordable, and professional care for your AC system. 👉 Call now or book online — We serve homes and businesses across Kathmandu Valley!