Work colleague only occasionally uses the nail gun. I couldn't find any post on the internet where someone trying to fix this range of Tacwise tools found the root cause for this symptom. So I posted my findings for anyone else who might be trying to troubleshoot same issue.
I had same type sympton on a Tacwise ELS Pro 400.
Im an electronics eng.
Root cause was EM78P153S 14 pin electrically 1 time only programmable chip IC had a hole blown in its middle. This on the circuit board. The SCR tested ok. This issue is not repairable as the IC must be programmed by the...
