1000ml Capacity Smart PCB Aroma Diffuser 5000m³ Large Area Fragrance Machine Electric Essential Oil Diffuser for Hotel Spa US Plug 110V Item Type: Hotel Collection Diffuser Capacity of Essential Oil Bottle: 1000ml (liquid not included in shipment) Color: Black Power Output: 26W Noise Level: <50dba Material: Aluminum Alloy Dimensions: Approx. 403x280x155mm / 15.87x11.02x6.1in (including foot pad), Height 390mm / 15.35in (without foot pad) Coverage Area: 5000m³ Operation Mode: Smart PCB Installation Method: Flat/External connection with central air conditioning Applicable Occasions: Hotels, homes, therapy centers, hot spring resorts, saunas, spas, KTVs, leisure clubs Replace Atomizer Core Instructions: Step 1: Unscrew the essential oil bottle, remove the atomizer core, and take out the oil absorption tube. Step 2: Insert the oil absorption tube into the small hole of the spare atomizer core. Step 3: Press the spare atomizer core with the inserted oil absorption tube into the adapter. Routine Troubleshooting and Maintenance: Troubleshooting Methods Maintenance Procedures: No atomization check if the power is connected, if the air pump is working properly, if the current setting is within the working time period, check the air pump operation, and reset the program: Atomization quantity is small whether the atomizer is blocked, if the air pump is aging, clean the atomizer, replace the air pump: Liquid mist from the atomization exit check whether the atomizer joint is loose, if the equipment is tilted, tighten the atomizer joint, keep the equipment upright: Oil leakage whether the essential oil bottle is loose, if the bottle mouth sealing ring is missing, tighten the essential oil bottle, check if the sealing ring is in the correct position: Abnormal noise whether the air pump is loose, if the fan has dust, install the air pump correctly, fix the position, and clean the fan dust