There are several reasons why the voltage regulator often burns out. The most common reasons are:

• breakdown of the stator (generator) on the casing
• the replacement regulator is of poorer quality
• stronger consumables have been added - it can destroy the regulator, but also the stator <-!
• a parallel regulator was put in place of the original series type of regulator
• a stronger or inappropriate stator (generator) that gives a higher current is installed
• bad connection of the voltage regulator to the battery - the measuring electronics of the regulator are damaged and it can start to overcharge <-!

   The solution for everything except for the bad connection of the regulator to the battery is to put a correct and high-quality stator and replace the voltage regulator with a series voltage regulator. The solution may be to replace the parallel regulator with a series type. If the stator has worked for a long time with a parallel regulator, it is likely that after some time the stator will still fail even with a newly installed series regulator.

 

   The series regulator reduces the power consumption from the stator and thereby heats up less , reduces the heating of the installation from the stator to the regulator and reduces the heating of the stator. Heating the installation is potentially dangerous because it can lead to a partial or complete interruption of power from the generator, which will result in (imperceptible) discharge of the battery, damage to the battery and inability to start the motorcycle. When more powerful consumers are added, the series regulator has less effect on reducing the current from the generator and will itself heat up more due to the higher consumption current. If the series regulator is robust enough to withstand a higher consumption current, there is a higher probability that the stator (generator) and the installation from the stator to the regulator will fail faster due to higher heating.

   You can find more about the advantages of serial regulators in the article: " Advantages of the serial type of voltage regulator on a motorcycle". We offer proven quality series single-phase and three-phase regulators and series-parallel regulators (e.g. 14V-3FHVSP-30A-AX-KS-LI) for high rpm motorcycles, which have proven to be an excellent choice in many years of practice. We provide a 3 to 5 year warranty on serial regulators. There is more about the quality of the regulator in the article:  "Superior quality of the regulator".

   Many motorcyclists change the stator and put a serial type of regulator even before the failure occurs because some types of motorcycles in the original battery charging solution inevitably end up with the voltage regulator burning. In addition to the costs for the new regulator, there are also the possible costs of transporting the motorcycle to the workshop. So it is better to avoid a surprise and instead of paying for the transportation costs of a broken motorcycle, use that money to purchase a higher quality and better serial type of voltage regulator.