SIGNS / 01
Issues to Look Out for with Exhaust Fans
Exhaust fan symptoms and equipment conditions vary depending on the model, installation environment, and store operations. The examples below are intended to help organize the situation when consulting us. If there is a safety risk, follow the store or facility’s safety procedures before attempting work or taking photos.
Smoke or odors linger
We check the condition of the entire exhaust path, including the hood, filters, ducts, fan, and air supply. The type of cooking and the times when symptoms occur are also useful indicators.
Unusual noise or vibration has increased
From a safe location, record the type of noise, when it occurs, and any changes in vibration. If you notice a burning smell or strong vibration, follow the store’s safety procedures first.
Dirt around exterior exhaust vents and rooftop areas
Access to rooftops and elevated areas requires facility approval and safety measures. We can review information that can be shared without access, such as photos and equipment drawings.
BEFORE CONSULTATION / 02
Please provide whatever information you can before your consultation.
Please share whatever information you have about the exhaust fan, such as its manufacturer, model number, quantity, and location. If an on-site inspection or additional materials are needed, we will ask about the situation and then provide guidance.
- Manufacturer, model number, quantity, and installation location
- When changes in unusual noise, vibration, or suction occur
- Cleaning history for the hood, filter, and ducts
- Access Requirements for Rooftops, Exterior Exhaust Vents, and Inspection Hatches
Do not touch rotating parts, electrical components, or equipment at height, and do not open covers or disassemble equipment yourself. Confirm who will carry out cleaning, inspection, and repairs, and what they will cover, before requesting an estimate.
We’ll advise you on whether exhaust fan work is possible, the method, schedule, and cost after reviewing the equipment’s condition and the store, regional, contractual, and facility requirements.
QUESTIONS / 03
Frequently Asked Questions
Is it okay to open the fan myself to inspect it?
Do not touch moving parts, electrical components, or equipment in high places while it is operating. Follow the store's safety procedures when opening or closing covers or operating power controls, and consult the person in charge, facility manager, and qualified professionals.
What information should I provide if suction is weak?
Please share what you know about where and when the symptoms occur, cooking activities, whether there is unusual noise or vibration, the equipment model and location, and recent cleaning history.

