Still not finished, but here's the Mode 7 wiring diagram for the P1353ME:



When considering the level of the engineering behind this timer, this wiring diagram is not encouraging. If an electrician follows this diagram as drawn, he will wire in a dead short.

Here's why:

Normal electrical schematic convention is to show wiring connections as plain intersections -- usually, but not always with a DOT at the intersection -- and wiring CROSSINGS (no connection) with an inverted "U" or hump in the crossing wire. You can see just such a hump where the pump "COMMON" wire crosses one of the 240V "LINE" connections.

There SHOULD be another such inverted "U" at the point the jumper from the #3 terminal to the #5 terminal crosses the #4 terminal. The fact that the engineering staff let this serious wiring error reach publication speaks VERY poorly of the engineering safety and conscientiousness lying behind this unit.

And that's a problem.

With electromechanical units, they tend to to work right, or not at all. By contrast, electronic controls routinely enter the "brain-fried" mode, with erratic or unpredictable output: you've experienced this on your laptop or personal computer if you have used one much at all. On your computer, you just reboot. But, if this electronic timer -- engineered by guys who can't be bothered to get a basic schematic right -- goes into 'brain-fried' mode, you could smoke your pump motor.