I have a 15 year old Nautilus Infinity Spa. It has worked perfectly until just recently. It now will not heat the water. We turn the spa on and the temperature readout indicates that the temperature is climbing. However, at 104 the water is still cold, and at 199, the temperature indicator blinks constantly and the water is still cold. The heating unit is an ASP-2000 240 volt 4kw also purchased in 2000.
The temperature sensor cable had to be reseated about 6 months ago, but it has worked fine for those 6 months until last week.
The only thing that we have done to try to fix the problem is to reseat the rubber covered plugs for the control unit and the pump unit. This has made no difference. I have also pressed the high temp reset button once.
Your help would be appreciated as soon as possible. Bob will be in Winnipeg on Saturday if there is anything that he might need to pick up from you.
Thank you. Bob & Cheryl Davies