Fisher Price Toys - Page 9 - Recent Questions, Troubleshooting & Support

I believe I have the manual at home and can scan it & e-mail it to you tomorrow if you still need help.

If you're the first owner and registered it when you got it, the manufacturer website (or customer service number from website or manual) should have some answers for you. Lots of times you can look your product up on the manufacturor's website. If not, call them and ask. What's the worst thing they'll say? "No."?

first of all check for at least 12 volts from the battery and the charger, you can test this using a multimeter

I'm having the same problem would love to know if you found a solution.

this drove me mad too as i bought it second hand with no instuctions,but ive finally found the answer,the big battery pack on the back of the aquarium comes off!! behind the batteries there are 4 screws,undo them with a phillips screwdriver and it removes the battery pack,then place the toy wherever u want it in the cot and from the other side of the cot bars re attach the battery pack! its so easy now ive figured it out lol like i said it was drivin me insane and nearly ended up re selling it because it thought it wouldnt fit! it also has a sticker on the back that says its not suitable for all cots :/ its a cot toy!! silly eh lol anyway i hope this helps anyone thats havin this problem x