jeffs

I've heard that ozone can cause this on a tub with an ozinator. Probably no solution for it though.

Sorry, the formula didn't format correctly. It is 1 over, 1 over the resistance of the sensor plus 1 over the resistance of the fake out resistor.

Actually working in the electronics field on equipment that has temp sensors in them I know that not all temp sensors are the same. I wouldn't arbitrarily put in a resistor based on what someone else has done. I would measure the resistance of the sensors at a couple different temperatures and then put in a resistor that would fake the board into thinking the water was that number of degrees colder than it actually is. That way you would pretty much always know the water temp was X number of degrees warmer than displayed. Also, there is the distinct possibility that to fake out the board you would need to decrease the resistance of the sensor in which case you would need to put the resistor in parallel with the sensor. formula follows: 1 __________________________ 1 1 ______ + ______ R(sensor) RX

Actually, the tub has had the power off for the last six months without results.

I have a 10 year old Artesian Jem model MAJ 200 spa that somehow got the control panel locked. I cannot figure out how to unlock it and the operators manual doesn't say. Of course the manual they gave me is for the MAJ 150 and 175 models. Can anyone help?