Aqua cal Heat Wave pool heater runs straight to the max setting of 104 degrees....had to pull the breaker to get it to shut of....cannot run temp down.....buttons are unresponsive.

SOURCE: Pool Not Heating Display Wrong

where the thermostat is located, the pump is not circulating the water

SOURCE: How do you set a spa heater to heat the water over 104 degrees?

Sorry set by law and a ery good one to boot. Even if you are the one to reset the manufacture would still assume liability. Heater and thermostat manfacture would both be liable for death or stroke and they try their best to avoide this. So sorry no they have done their best to avoide someone getting hurt or dead.

SOURCE: Pool Heater Mis-reading Temp.

Your temp sensors are on the heater, a small tube that slides into the water manifold, usually on the left side. On the remote it will be in one of the pipes coming from the pump or the filter. If it is after the heater you should move it to between the filter and heater. It will be a tube that is in the pipe with a stanless steel clamp holding it in place.
To find out wich one it is you will need to remove the remote from the system by takeing the wires that go to it from the wireing inside the heater and wire nuting the wires in the heater together. If the heater runs normal then it is the sensor for the remote if not it is the sensor for the heater. Let me know how you do and if need be we can get a little more specfic for your system. good luck.

SOURCE: Ref: Sta-Rite Max-E 400. Pool temp is about 75

Your temp sensor has gone bad and will need to be replaced. It's a small tube that slides into the water manifold and you can follow the wires back to the board. Just unplug and set a new one in place.

SOURCE: My balboa control is set

YOU CAN RESET THE PANEL ON SOME HEATERS HOWEVER WHATS GOING ON IS ONE OF THE FOLLOWING TWO POSSIBLITIES:
TEMP SENSOR IS DEFECTIVE (VERY COMMON)
OR
TEMP SENSOR IS TOO FAR FROM HEATER DEPENDING ON YOUR SET UP IT COULD NOT BE BE SENDING IN-ACCURATE READINGS TO HEATER BECAUSE IT IS FATHER AWAY, THE FATHER AWAY THE COOLER IT BECOMES, SO THE HEATER KEEPS RUNNING UNTIL IT THINKS ITS REACH 140 WHEN REALLY ITS 109
THE WAY TO TELL THE DIFF IS SIMPLE
IF THIS PROBLEM HAS BEEN GOING ON SINCE INSTALL ITS OPTION 2
IF THIS THIS JUST STARTED ITS YOUR TEMP SENSOR THAT NEEDS REPLACEMENT

- HOPED THIS HELPS--CHARLIE -- POOL PROS