Ever bang your head against a workshop compressor for two straight days??? I have...
Hi guys!
Wondering if any of you comp-boffins can shed some light on what my problem might be???
I've followed the wiring diagrams and the troubleshooting guides, consulted the internet and I think what the problem might be, that it's... fucked.
Okay, it's cheap(ish) generic Chinese unit.
Specifically, it's a Nuair Herkules 450/10/50, but I believe, apart from branding, it is identical to other units from companies such as Sealey, etc.
Problem is;
Plug it in, runs strong for a few seconds, and then slowly dies.
This sounds like a classic bad capacitor issue, right? That's what I thought...
So I bought a new 'un, fitted it... still does exactly the same thing.
I have noticed that if I bleed off the pressure, it'll fire right up again... then again die after a few seconds. I can repeat this cycle as much as I like, same result...
Clearly, as soon as there is pressure in the pipework, it overpowers the strength of the motor.
So I started disconnecting stuff, assuming I must have a bad/stuck valve somewhere.
First - I removed the pipes coming out the top of the cylinders, the machine ran really strongly, no stopping.
Then I reconnected them and disconnected the outflow pipe from the manifold that those first two run into, machine again runs strong. Okay.
Reconnected that.
Opened up the manifold that splits the airflow between the tank and the controls/gauges, strong running strong flow of air... and long story short, I did this with every joint, union, valve and connection in the system and I checked for blockages in the tank's ports everything open no obstructions...
In short - take resistance out of the system ANYWHERE and it will run really well all day, all night. The moment you close the system, you're back to runs for a few moments, then dies, till you bleed off the system again.
Anybody got any ideas what might be going on???
Losing my mind
Thanks guys
I'll include a few pics here of the wiring to the old cap - I wired the new one in exactly the same - could this be the fundamental mistake?
