08/07/2026
❄️ 4-Zone Mitsubishi Heat Pump — No Cooling Call
Customer reported the system would start up, run for about 5–10 minutes, then shut down with no cooling.
After diagnosing the system, we found it completely empty of refrigerant. We located the leak, made the necessary repair, and are now pulling a deep vacuum before weighing in the proper refrigerant charge.
On multi-zone Mitsubishi systems, getting the refrigerant circuit right is critical — especially with a branch box feeding four indoor units.
Leak found ✅
Repair completed ✅
Deep vacuum 💨
Proper recharge ❄️
Cooling restored 👊
Another Mitsubishi system brought back to life by Valenzi Heating & Cooling.