I have a grocers honey tank. Will not heat. If you take out paper and pen, I'll draw this out. Draw Three circles at 12 - 3 and 6 oclock positions Top circle is power 3 o'clock is thermostat 6 o'clock is heating element. Draw two terminal leads on power circle pointing down. Left will be "a" and right will be "b". Draw two leads on the thermostat pointing to the left. Upper lead is "c". Lower lead is "d". Draw two leads pointing up from the Heating element. Right side lead is "e" and left side is "f" Now connect with a line, b and c connect d and e connect f and a Out the back of the thermostat you can draw the copper wire and bulb that goes in the water tank Out the back of the Heating element, you can draw the heating element. The device is also properly grounded. Now with all that drawn out, here is the electrical tester conditions. With the thermastat turned OFF, I get a light for the thermostat leads c and d. I get no light at the heater leads f and e. With the thermostat turned on, (meaning I turned it up until you can hear the relay kick) I get no light at the thrermostat c and d. I get a positive at the heater leads f and e So what needs replaced? After you draw it out, it is really easy. I just want soemone to tell me before I start ordering parts. Thank you.