heat bed in mini G2

[LENNS]

heat bed temp in Repetier-Host indicates much higher than actual heatbed temperature of mini G2
At room temperature actual heat reading on bed is 22 C but host indicates 98C.
line 178 of Configuration.h file is #define TEMP_SENSOR_BED 1 . Is this correct?
If not what is correct sensor bed number?
If correct what is probable cause?

[Mark]

Hi ,LENNS .
1) you can check the specific settings in your firmware of temperature.h,here are some examples:
//===========================================================================
//============================= ThermalSettings ============================
//===========================================================================
//
//--NORMAL IS 4.7kohm PULLUP!-- 1kohmpullup can be used on hotend sensor, using correct resistor and table
//
//// Temperature sensor settings:
// -2 is thermocouple with MAX6675 (onlyfor sensor 0)
// -1 is thermocouple with AD595
// 0 is not used
// 1 is 100k thermistor - best choice forEPCOS 100k (4.7k pullup)
// 2 is 200k thermistor - ATC Semitec204GT-2 (4.7k pullup)
// 3 is Mendel-parts thermistor (4.7kpullup)

so ,acccording to your thermistor type,you can see which is right for you .

2) you can swap your heat bed tempreature sensor with the hot end sensor to check if the sensor dead or not .

3)another way to test is break or short your sensor circut ,if is 0 or 385℃，then the sensor is OK.

[LENNS]

The sensor is working but giving wrong values.

You said
"so ,acccording to your thermistor type,you can see which is right for you"

It is presently set at 1 which is obviously wrong. How do I know what is right for me?
I do not know what thermistor type is in heatbed. I thought you would know.
Can you simply not tell me which is correct value for sensor in this heatbed?

[Mark]

According to the sensor type ,I found the value is 1,right. So could you swap it with the hotend sensor,maybe the sensor has a problem,or maybe the sensor is not connected well.