Hot tub thermostat or circuit board?
I have a Morgan Oceanside, 5-6 years old. No problems. Now, cold water, everything functions fine. I have replaced the heating element, it didn’t change anything. Could it be the thermostat or is it the circuit board?
Everything on the display,
cut the power,find the thermostat,get an ohm meter,remove one of 2 wires to thermostat,put ohm meter across terminals,should read 0 restiance,if not its bad,by the way set thermostat to highest setting