Hotpoint Aquarius Ultima 1200 washer dryer. What is error code 14,?

I have a Hotpoint Aquarius Ultima 1200 washer dryer. After last weeks thunder and Lightenning I was having the error message "check outlet pipes" but they are clear, so I switched the machine off at the mains to reset it and it goes through all the cycle until the spin cycle and says "Error code 14". If I switch it off for a few minutes, and then put it on the spin mode only, it spins. It took 2hr.30 min to do a 50deg wash. A lot longer than normal