Panel cleaning should be planned around the site and the manufacturer’s guidance. Dust, nearby activity and access conditions differ between properties, so a fixed schedule copied from another installation may not be appropriate.
Start with observation and instructions
Ask the installer what cleaning methods the panel manufacturer permits and who should carry out the work. Review generation records alongside visible conditions before assuming dirt is the cause of a change. Roof access and electrical equipment require care; customers should not improvise cleaning work in unsafe conditions.
Define the service scope
A cleaning visit and a technical inspection are not necessarily the same service. Ask what is included, how access will be managed and how findings will be recorded. Keep a record of dates and any concerns reported so later performance discussions have useful context.
Agree access and cleaning method before setting a calendar
Record where dust accumulates and whether staff can observe panels safely from existing access. Ask the service provider to use the selected module manufacturer’s cleaning guidance and to assess roof access risks. Compare output trends with weather and monitoring availability before attributing a change to dirt. There is no single cleaning interval that suits every roof or season.
Your practical checklist
- Keep the relevant cleaning guidance
- Agree access and service responsibilities
- Record cleaning dates and observations
Should an owner climb onto the roof whenever output falls?
No. Review the available records and contact the service team. Safe access and the cause of the change need assessment.
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Sources and company information
Our warranty and support process
This company information explains our published records or support process. Confirm the scope and terms that apply to your installation.
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