Master Temp Heater problems

[sm2727]

I have a similar problem...I have replaced control board, thermistor and high limit switch....new control board shows E01
Old control board shows 126
Wires are good..no damage system is 4.5 years old
New control board has the r-2
Is the control board out of date?
At a loss....any suggestions

 

[ajw22]

Welcome to TFP.

E01 error is an open temperature sensor.

126 was a shorted temperature sensor.

Check the wiring on the thermistor you replaced.

What is the part number of the board you installed?