Help me jimmyboots (or somebody else clever lol)... i've killed my homemade trolley :(

So yesterday it had it's first proper days work and it was awesome /emoticons/smile.png This morning I put it on charge for a few hours and I've just switched on and nothing happened. It hadn't out yesterday.

Now i have a sneaky feeling my little boy may have switched it on last night the shed, so it may have been running all night and therefore battery drained, but surely a few hours charge this morning would have least given it enough juice start up?

What if I wired my charger socket and plug the wrong way round? There were no instructions so I did what I thought seemed logical.... could I have shorted the battery and killed it?

I don't know what to try other than charging it for longer and seeing what happens /emoticons/unsure.png

Blown fuse or loose connection would be a good place to start.

You did charge the battery red + and black - ? And place the red + on the terminal first?

It's charging through a socket rather than croc clips to each terminal as the battery is concealed in the waterproof box so it's a plug in and switch on job, not a connect one then the other job /emoticons/smile.png

Fuse is a good point.... in my panic I didn't think of that lol. If the fuse is gone, is that a pretty strong indicator that I've wired the charger wrong?

Fuse looks fine. I've checked all the connectors, taken then apart and back together again, all looks fine. Reading on the volt meter of the battery is 13.47 which is fine isn't it?

So why isn't it working /emoticons/sad.png

You seem to have a fully charged battery so next step is to find out why no power is getting to the pump

I've tried a new fuse just in case but no difference. My toddler is helping and I'm going to throttle him soon lol so going to leave it now til he's in bed /emoticons/smile.png

There's a fuse on the pwm but that looks fine too, and I've bypassed the pwm and it still didn't work so I don't think that's causing the problem.

Running out of ideas /emoticons/unsure.png

You have a controller? And is that lighting up when you turn it on?

As a test connect the battery directly to the pump. Then if the pump doesn't run you have a bigger problem

It doesn't have lights, it's just a wee dial thing that turns the motor up and down.

I bet that's your problem if the pump runs ok connected directly to the battery

It doesn't have lights, it's just a wee dial thing that turns the motor up and down.

Click to expand...

Smurf's idea is a good one. Are the pump and controller new or second hand?

But I already tried bypassing it /emoticons/unsure.png

I'm going to bypass everything one the wee man is asleep... literally connect battery to pump, no switch, fuse pwm, anything, then gradually add then back in. Presuming it works when wired directly of course!

Let us know how you get on:thumbsup:

Check all connections, you'd be surprised how things can work loose. Check for moisture also. As smurf says, wire directly from battery to pump to establish what's at fault.

Do I need to do proper connections to test the pump directly from the battery? I've tried it just touching the wires from the pump directly onto the corresponding terminals of the battery and nothing happened? /emoticons/sad.png

Tell us more about your pump. Age, make, problems with it in the past etc

It's pretty much brand new... until yesterday it had only been used to test it worked when I built the system. It worked great yesterday.

It's a cheapie one.... the one Jimmyboots linked to in his homemade back pack tutorial. Apart from adding the pwm to control the flow, my trolley is essentially Jimmyboots' backpack but mounted on a trolley.

Ok. Does it make any noise at all when it's connected to the battery?

No, nothing at all /emoticons/sad.png