GAVR-25A Universal AVR

About this part

An AVR senses the alternator's output voltage and adjusts the current in the exciter field many times a second to hold it at the set point. Without it, voltage swings with every change in load and can damage connected equipment.

Features

• 50Hz system presets the inflection point to 47Hz (factory setting)

When to replace it

• Output voltage that is too high, too low or unstable
• No output voltage although the engine runs normally
• Lights flickering or voltage dipping as loads switch on
• A burnt or damaged board after a lightning strike or short

Before you order

Set the voltage and stability adjustments with the generator off load first, then check the response with a load applied.

If the old part has no readable number, send us a clear photo with the engine or alternator nameplate and we will identify it before you buy.

Questions