I just got a 2 person hot tub that I was told the heater/pump is not warming the water at all. The control box is removed from the tub and I have opened it. I am trying to figure out where to start and what I should be testing or looking for that may be causing the problem. The control box had 220v coming in and the wires that plug into it show they are 110v. Here are the details on the control box:
Product 3-70-0140 Volts 110v/220v
Model AP1400#5 AMPS 20/50
Serial No 220327 062 Hertz 60
I am hoping that I can test and fix the problem without having to fill the tub, then drain it to repair the problem.