I have tested this timer.
GE 15132 timer can be wired muliple ways to accommodate different voltages and many different timing needs.
http://waterheatertimer.org/How-to-wire-GE-15132-timer.html1) First thing is you must set dip switches BEFORE applying power.
Timer arrives pre-set for 277Volts.
For 120V, set all 4 dip switches to the left, or ON.
2) Otherwise your wiring sounds correct.
Hot black wire to far left 'clock' terminal.
Neutral white wire to next 'clock' terminal.
Jumper from Hot terminal to COM terminal.
Black Load wire on NO terminal.
White Load wire to same 'clock' terminal as Neutral
3) Possible solution:
Move wires to COM2 and NO2 and see if that relay is working.
4) Make sure your programming does not have conflicts.
See if manual override is working.
Test for voltage across 'clock' terminals
Move manual override and watch if relay clicks open-closed.
Check that Load is operable by moving NO wire to COM terminal.
5) If timer is not functioning, exchange at Home Depot.
You can switch out mechanism without replacing box.
Mechanism is held with hex screws.
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