After 20+ years of flawless operation the Intermatic timer controlling my pool pump stopped working. The local pool supply guy first advised trying WD-40, and when that didn't work, sold me a new timer. I figured out how to wire the new timer (T104 240V) from the old timer (T103 120V), but there are two extra parts inside the sub-box that I've never seen before.
The first one is this yellow resistor(?) soldered between terminal 1 and terminal 3 of the old Intermatic timer.
The second is this black cylinder connected to terminal 1 of the timer and the neutral bus.
Below are pics inside the sub-box with the new timer and black cylinder still connected, and the printed sticker inside the sub-box door.
The local pool guy was of no help. Does anyone know what these do inside the box? Do I need them for proper operation of the pump?
Thanks in advance.