DIyOfuro

Hi - I just built myself a cedar tub and a buddy gave me a Watkins/Hotspot combination for heating. It seems like I have the same box as being discussed above - a hotspot unit of 92-94 vintage (same as https://www.pinterest.ca/pin/618119117576404801/). The Watkins pump is working fine but the heater is not. It appears that it may be a resistor has fried. So two questions: * Does anyone have an electrical schematic for the Hotspot heater unit? * Any idea what the value of the resistor is? It is the hotspot resistor assembly part 70797. I got this off a supplier's website but they were unable to supply the part or any further info. (see the specifications tab at https://www.hottubspasupplies.com/34689-capacitor-hot-spot.html) I have checked with a couple suppliers and am having no luck getting technical information. Tech support at Hotspot says they have no information on items older than 20 years. Thanks for any help you can provide.