I am getting 120V at the connection for the heater for a 240V rated heater. I have checked the fuses. I am also getting a FLO code. I have a in.xe spa pack. Should the spa pack be replaced. I am reading about 40 ohms on the 4kw heater.

I am getting 120V at the connection for the heater for a 240V rated heater. I have checked the fuses. I am also getting a FLO code. I have a in.xe spa pack. Should the spa pack be replaced. I am reading about 40 ohms on the 4kw heater.