Mini split is having a hard time to cool down the garage. Appeared to be low on charge. Initial split was about 17. Performed a leak search but did not find any signs of a leak at this time. With further investigation found a very dirty blower. Recommended to clean blower prior to adding charge as it could be a corporate to the issue. After cleaning blower the split improved to a 33 degree split. Verified refrigerant levels one more time. Added .8 oz of 410a and the split is now 40 degrees. So recommended to continue their annual check up so levels can be checked prior to next years summer and verify levels have maintained. Ductless system blower wheel cleaning Disassemble indoor unit and remove blower wheel Clean and rinse indoor blower wheel Removes dirt buildup and improves airflow and capacity R- 410a Adjust Refrigerant level: 1st Pound RECOMMEND LEAK SEARCH BEFORE ADJUSTING REFRIGERANT CHARGE Purge gauges to ensure no non-condensables enter system Use digital scale to weigh in
