Solar panels and their components serve to be useful devices in the face of expensive and fast depleting energy sources. They transform solar energy into heat energy and electricity to be used in residential and commercial establishments. Like all other energy-producing devices, solar panel components are also prone to damages. Their faulty components are easy to recognize as they lead to diminished yields and less output from the solar installation. Fortunately, solar panel repairs can help in the resolution of most common problems that affect solar panels, provided they are performed in time by field experts.

Prior knowledge of the commonly occurring solar panel problems can alleviate the concerns of added investments in the form of new PV components. Given below are some issues that can make solar panels underperform or render them useless beyond repair.

Micro-Cracks and Hot Spots

Microscopic fractures, hot spots and cracks can appear on the surface of solar panel glass cells, grow in size across time and damage the effectiveness of solar cells. The lamination, panel frame and waterproofing of the solar system may remain in good condition despite the cracks.

The causes attributed to micro-cracks and hot spots are:

  • PV modules production
  • Bad handling during the process of shipping
  • Changes in the ambient temperature or other weather conditions.

The decision to repair these micro-fractures and hot spots would depend on the way the panels have been set up in specific installations. In case a roof-integrated system is in place, it has to be dismounted in entirety even though a couple of panels may be under-performing. It is worthwhile to clean and ascertain the level of damage in all panels before repairing the broken glass panels. Dirt accumulation can also lead to lower output from solar panels and should not be overlooked.

PID Effect

PID or potential induced degradation is attributed to voltage fluctuations taking place between the voltage generated by the panel and earthing of the solar panel. This leads to a varying percentage of discharged voltage in the main power circuit. Experts in solar panel repair can rectify the issue at hand to prevent faster ageing of solar panels and stabilize their performance.

Loose Wiring

Unexpected power generation issues may emerge as a result of loose wires in the solar power system. These wires connect individual PV cells to the inverters and home solar batteries; the smallest of wiring fault may cause failed connections. Installers with experience in solar panel repairs and maintenance use meters and other wire performance checking tools to assess such problems and provide helpful solutions in good time.

Inner Module Damage

Internal damages to solar panels may be caused by faulty production or poor-quality selection of components. They result in snail trails, delamination, discolouration of solar connectors or cells, yellowing of the sheets placed at the back, browning of EVA films, PV cell staining, unwanted inclusions in the PV laminates, burning out of the back and/or front of the solar modules, etc. In most cases, experts remove glass from solar panel so that they can be repaired or changed. However, the type and extent of the damage are best ascertained by solar panel repair companies to determine the feasibility of the action.


Module Damages Caused by External Factors


Storm, hail, snow pressure, lightning and other related weather conditions can cause extensive damages to solar modules. External damages may also occur due to fire, animal bites, broken branches, icy conditions and excessive heat or cold. The presence of these factors leads to solar panel glass breakage, cell breakage, scratches on the frame of the module, micro-cracks, etc. Long and persistent cold weather conditions can twist or freeze solar panel frames, thereby causing breakage. Lightning and overvoltage results in defective bypass diodes, scorched junction boxes, etc. In most cases, if solar PV cells and panels are exposed to fire, they are not salvageable.

Way Forward

When the repair of solar panels becomes unavoidable, it’s important to differentiate between the tasks that can be performed on-site and those that have to be conducted at the repair centre. While the replacement of bypass diodes found in junction boxes, damaged solar plugs and cables, etc. can be carried out on the site of installation, bigger damages require specialized treatment.

There are several solar panel repair centres in India that are adept at photovoltaic module repairs and replacement. Their engineers perform extensive automated tests like power measurement tests, flash tests and insulation tests after repairs to guarantee optimum performance of solar installations. The many advantages of hiring professional solar service and repair companies can enhance production efficiency and decrease the probability of system failure to a very large extent.

Reach out to Top Solar Panel Dealers near you and get free quotes





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