whirlpool g2pdw1?

hi,ive got a fault that runs most of the cycle but seems to stop on part of the rince,when it stops the alarm is sounding all the time until you switch it off and the light is lit on the rince cycle icon.
i thought it may be a problem with the programmer but am not sure.Everthing seems to work as in tempeture of the water door switch and pump draining.would really appreciate a lead if anyone has any ideas?