I have what I think is a varistor. About a 5mm diameter disk, burnt around the upper edge. It is marked with the manufacturer(?) - CVN Mexico - on one side and the other side marked
x60 X010
This may not be a varistor, maybe a capacitor or ?. It is in series with a 15 ohm resistor feeding a relay coil marked 24VAC. The relay coil burnt out as well as the resistor and this component. Any idea what it is? Below is a layout of the circuit.
+VAC --------varistor(?)----15 ohm res.-----humidistat switch------24vac relay coil-------ground