Question about Intermatic T104 24h 208-277v Mechanical Time Switch
1) If breaker tests 240V, but testing across timer terminals 1 and 3 shows 120V, then wire to timer is suspect.
2) Check that screws on timer and on breaker are tight.
Double check voltages again.
3) Look at timer terminals, no plastic insulation can be under the screw plate.
4) Move wire to another same-size 240V breaker and try circuit again.
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Posted on Apr 11, 2011
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Posted on Jan 02, 2017
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