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Any ideas? Stannah 260
Had a call to a Stannah 260 over the weekend – F1 500mA fuse.
Replaced the fuse and everything is powered are ready to go but as soon as you put in a call (either direction – arm or remotes) the fuse blows – not a pcb fault as this was proven by substitution.
The fuse supplies power through to the Ultimate limit switch and on through the rest of the primary switches before becoming the common feed to the left/right call/sends.
My problem is if the fault was a short in the primary circuits then the fuse should blow instantly. But as the call/send circuits are identical but separate would they both develop the same fault?
Ultimately I went through the wiring measuring for shorts to chassis on each of the plugs without any unexpected results. Put it all back together, and the fault has gone! I’m not happy to just leave it at that as it may reappear in time.
So any ideas?
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