Different Sparker Types Question

Thanks. Are the electrodes the same electrically? The igniter has that angle at the tip, but could it act as the sensor (swap wires to it) if you had another ignitor?

I can't just replace the electrodes on the fridge because they are rusted in.

I have a corroded fridge sensor electrode that only works sometimes, but the igniter is ok. One jury rig might be to switch the wires so the ignitor gets the black wire and becomes the sensor, while the water heater set that has only the ignitor and a ground rod (remove?) is the new ignitor. I can physically get that in place messing with the brackets.

Using the furnace set is a problem physically, where the prongs are so long, but it does have both electrodes.

I have a line on a used Norcold that might replace the whole fridge, so I am looking at my options.

EDIT--I got a Norcold 641.3 so next episode is to install that.

Thanks.