Spill switch installation for Honeywell WT8840 gas valve

Discussion in 'Water Heater Forum, Tanks' started by Frozen23, Nov 6, 2019.

  1. Frozen23

    Frozen23 New Member

    Dec 15, 2017
    My plumbing inspector mentioned I need to install a spill switch over my AO Smith natural gas tank water heater exhaust vent. The water heater has WT8840 gas valve. I failed on searching info how to marry SSK-3 switch and WT8840 gas valve. Is there a wiring diagram? Because the one that comes with SSK-3 is useless proposing to use a junction block. I haven't found the thermocouple on the valve. Just ignition wire and 2 thermopile wires
    Last edited: Nov 6, 2019
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