Forrest Jerome posted:Bridge motor does operate at 14v AC..
Rather than playing 20 questions here's a generic $4 solution to delaying 14V AC by 8 seconds. No soldering, no fussing with individual components, diodes, resistors, etc.
The first module converts 14V AC to 12V DC. You need a meter to set the voltage.
The 2nd module receives 12V DC, waits 8 seconds and closes its relay. The relay delays 14V AC to the motor. As soon as 14V AC power is lost, both modules turn off and the motor instantly loses power. End result: 8 seconds delay to turn ON, 0 seconds delay to turn OFF.