Check the trigger switch inside the gun , a few small screws in the casing will have to be unscrewed then take the gun in half and check the trigger switch connections and possibly replace the switch I have had this problem before with no obvious signs of wear or un connected connections but then i replaced the trigger switch and it worked fine
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Check the trigger switch inside the gun , a few small screws in the casing will have to be unscrewed then take the gun in half and check the trigger switch connections and possibly replace the switch I have had this problem before with no obvious signs of wear or un connected connections but then i replaced the trigger switch and it worked fine