Heated bed set/indicated vs real temp

[indy]

Hi. I have got the level that my prints are good enough, but now I'm experiencing problems with my prints warping and bending in middle of print.

In short, the problem seems to be in heated bed temp... Is my bed broken or should I adjust temp meaning set higher and check my infrared temp meter?

56 real temp vs 90 indicated temp is so big difference.



Any suggestions?

Thanks

[William]

Hi,obviously there maybe something wrong with the thermistor and heating cartrige.Please check them.