Last week I used the self-cleaning feature of my 12 year old Whirlpool electric range. It automatically locked the door as usual, except this time it did not release the lock. After waiting more than a day for the oven to cool down I decided it was broken and started to tinker. After taking the back cover off, I located the locking mechanism, which was simply two solenoids in a push/pull setup. With the power off (naturally) one of the solenoids comes apart with no resistance, and the other is in the closed position and the core will not budge or rotate.
Now the question… which solenoid is faulty? Any advice (other than talk to a Service rep :)) would be much appreciated.