Fume extractor maintenance
Maintenance and replacement of a BOFA extractor motor
A reduction in extraction is not enough to conclude that your BOFA extractor fan motor needs replacing. Before ordering a part or planning a repair, you need to distinguish between a filtration, capture or operating problem. Here is the information to gather and the points to have checked, without working on electrical components.
Check the context before blaming the motor
In its maintenance recommendations, Donaldson BOFA advises monitoring alarms and filter condition, as well as capture nozzles, enclosures and hoses. Fumes remaining in the enclosure or a filter alarm require investigation; on their own, they do not prove that the motor has failed.
Record the exact message displayed, when the fault occurred and any recent changes: filter replaced, hose moved or new application. Also describe any unusual noise or unexpected stoppage, without trying to reproduce the fault by opening the unit. If capture is no longer working properly, suspend the fume-generating process and follow the workshop fault procedure.
Identify the unit and applicable documentation
Replacement must be planned for a specific model. Donaldson BOFA’s official library distinguishes, in particular, between work on the AD Oracle, AD 350 / V 600 and V 200 / 250. The existence of these videos does not mean that the same motor or procedure is suitable for all extractors.
Gather the following information before making a request. A legible photo of the nameplate makes it possible to provide the information unambiguously; the AD Nano+ manual notes, in particular, that the plate shows the model, serial number and electrical specifications.
- Exact model, serial number and photo of the externally accessible nameplate.
- Manual for the unit and, if known, its revision.
- Alarm messages, symptoms and filter replacement history.
- Description of the process, materials processed and capture network.
Have the replacement carried out by the appropriate technician
The official AD Nano+ manual, revision 4.1 US version, limits user maintenance to cleaning and replacing filters. Testing and component replacement are reserved for maintenance technicians trained by the manufacturer. This information applies to this model and manual: check the requirements for your unit.
Motor replacement is therefore not treated here as routine maintenance. Ask the manufacturer or qualified service provider to confirm the part number for the assembly to be replaced, its compatibility with the configuration and the checks required. The work must be arranged with the power off and in accordance with applicable procedures. This guide provides no instructions for removing electrical panels, disconnecting or rewiring.
Plan checks before restarting the process
Running a new motor is not enough to establish that the system is capturing emissions correctly. In its guide ED 6008, INRS explains that the system’s reference values form the basis for checks and that the maintenance records retain details of work performed and its results.
Ask the service provider to specify the appropriate checks: extractor operation, condition of filters and ductwork, alarms, and comparison of relevant measurements with the reference values. Record the part installed, the date and the results. Restarting the process must follow the site’s instructions, not merely the absence of an error message.
Organize follow-up and prepare your request
Donaldson BOFA recommends a daily visual check of alarms, a weekly inspection of the condition of capture components and annual maintenance by a competent person, including the motor, filters and electrical system. Adapt this schedule to the manual, usage and requirements applicable to the installation. Combustible deposits and used filters require suitable pollution-control measures; replacing the motor does not address these risks.
NWS Laser est revendeur officiel Donaldson BOFA en France et peut vous fournir les produits de la marque. Pour vos besoins, contactez-nous via la page contact, à info@nwslaser.fr ou au +33 4 81 68 04 04. Pour une demande concernant votre extracteur, joignez les éléments d’identification et les symptômes. La référence de pièce et les possibilités d’intervention restent à confirmer pour votre appareil.
Frequently asked questions
- Does insufficient airflow mean the motor is faulty?
- No. Donaldson BOFA also recommends checking the filters and capture components. Before deciding on a replacement, the diagnosis must take account of alarms, the installation and its history.
- Can I replace the motor myself?
- Do not treat it as a filter change. For the AD Nano+, the cited manual reserves component replacement for technicians trained by the manufacturer. Check the intervention requirements in the documentation for your model.
- Which BOFA video should I use for my extractor?
- The official library categorizes videos by model. Check the exact match with your unit and configuration with the manufacturer or service provider. A video alone does not replace the applicable manual or required qualifications.
Sources and documentation
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