indesit is70c help required please

Hi all i seem to have a problem with my indesit is70c condensor drier,Two days ago i had to move my drier because the neighbours where complaing about the noise it creates they suggested me padding it out a bit to try to make it less noisy as they live down stairs,so i found my daughters old matress and put the drier on top of this ,the drier was wobbling a bit but seemed to be ok ,yesterday i noticed the drier had stopped spinning in the middle of a cycle and was making a humming noise like it was still active 😕 i noticed there was still time on the dial so there was no reason for it to stop like it did ,so i opened the door and found what at 1st seemed like smoke coming out of the drum (may have been steam?)there was a lot of it so i turned it off via the plug and left it, about a hour later i turned it back on again and found it to be spinning ok but now its no longer heating up i have emptyed the water that collects sometimes under the condensor and it was luke warm water not cold like it useually is any ideas what i have damaged? i have now returned the drier back to a stable surface but im still faced with a drier that no longer drys any ideas what might be the problem? any advice would be great many thanks for reading this gavin