[david wood]

hi does any one no how to fault find problams on back packs .every time i put a new fuse in and take the setting over number 1 or turn it of then switch it on again the fuse blows

[steve m]

by the sound of it you need to ask a sparks, not a window cleaner

[drakestar!]

get some fuse wire & bypass the fuse never had a prob since

[Spursboy1972]

I just put a bigger fuse in mine and it has been fine since.

[jeff1]

hi does any one no how to fault find problams on back packs .every time i put a new fuse in and take the setting over number 1 or turn it of then switch it on again the fuse blows

Before you do any of the below, just check your battery connections are clean and the plug, then check if the wire from the backpack to the battery has not been damaged by getting trapped when inserting the battery, if all ok then do the following.

To do a proper check.......Bypass the PCB board by disconnecting the wire connections to the pump from the PCB and apply power directly to the pump terminals, if the pump runs then replace the PCB, if the pump does not run then replace the pump.

[david wood]

ok thanks.jeff is the pcb the on/off switch

[jeff1]

ok thanks.jeff is the pcb the on/off switch

Yes if you remove the 2 screws from the plastic housing where the battery sits, you will see the wires I'm talking about.