Can you use a indesit washer /dryer just as a dryer? Even without if?

We already have a washing machine and want to use a indesit washer dryer just for drying, is this possible even without it being plumbed in? I thought it would be a case of just pluging it in and turning the dial but this doesn't appear to be the case! One thing though the lock symbol flashes on and of, could this be causing it not to work