To remove timer from enclosure, there is thumb spring located top inside box. Push up on spring, hold onto timer dial, tip outward and lift upward.
Disconnect power before removing mechanism.
Override lever should snap back and forth crisply, and turn pump ON-OFF.
If override lever is not turning pump ON-OFF, then check that you have 240Volts across terminals 1 and 3. Check that timer dial is rotating and keeping good time.
Then move override lever to ON position and check if you have 240Volt across terminals 2 and 4. These terminals are Hot when pump is supposed to be ON.
Reset circuit breaker, may be tripped off on one leg, listen for crackling sound of loose breaker, use nose to smell for burning, tighten wires on breaker, move wires to another same-size circuit breaker.
Copy following links for troubleshoot resources:
http://waterheatertimer.org/How-to-troubleshoot-Intermatic-timer.html
http://waterheatertimer.org/How-to-wire-T104-Intermatic-timer.html
http://waterheatertimer.org/How-to-replace-circuit-breaker.html
If timer is not functioning, then buy clock motor and trippers.
OR. You can buy the T104M mechanism-only, and snap into existing enclosure.
OR. It may be cheaper: Buy the whole T104 and snap out of new enclosure and install mechanism into existing enclosure.
If you need further help, I’m available over the phone at
https://www.6ya.com/expert/gene_9f0ef4df2f9897e7
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