Recently purchased this hot tub new from my local dealer. I've contacted them about this and am awaiting a response, but in the mean time I thought I'd check here too. My hot tub will not heat when the jets are on. It's a 220 and it specifically says in the manual that it is supposed to heat when the jets are on if hooked up in this way. Is this a motor/heater issue or is it an issue of the hot tub not being hooked up correctly by the electrician?