Aquamedic Biotherm Heater giving outrageous readings. Please Help!

[BigWaz]

Hello,
I have an 300 watt Aquamedic Biotherm heater and controller. The heater will not turn on because it thinks that the temperature of the tank is 138 F when it is really 72 F. Is there anyway of resetting these heater or recalibrating them? I've been trying to find things all morning and have had no luck. I've had this heater for about a little more than a year. Why would it be doing this?
Thanks!

[BigWaz]

I just called Aqua Medic, no way to reset it. They will give me a new product though, but I need the receipt, and I don't have it :(

[suthrnmn]

....Im on here with the exact same issue and same problem...no receipt!
And mine is about a year old...plus or minus....so they wont stand by there
$%^&* product if you dont have a receipt....nice...well perhaps they just bought some advertising!!!

[viper12775]

had the same problem with mine i took it apart there isn't any adjustment for calibration and same boat no receipt :-(

[suthrnmn]

could you post their number...if you are not cool with that...drop me a pvt msg. thanks.