Help needed regarding the measurement of the coil temperature of the boiler’s secondary fan.
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This post was last edited by yuchenchf on 2016-12-20 at 15:40. I just used a multimeter to measure the thermal resistor, and one of the readings was 0.6 kOhms; the control panel showed a red background. Is it possible that this resistor is damaged? All other resistors are 117 ohms
There are many types of thermal resistance scales, such as PT100, PT1000, CU50, etc.; but based on what you’ve described, it seems to be damaged
It must be broken; 117 volts = 45°C?
Thank you. What does it mean when the measurement of the thermistor shows kiloohms?
Thank you. What does it mean when the measurement of the thermistor shows kiloohms?
The normal temperature reading of the thermal resistor when measured on-site is over 40 degrees, while the value displayed on the main controller is around 30 degrees. Thank you. What does it mean when the measurement of the thermistor shows kiloohms?
For example, with PT100, you can check its calibration table: at 100 degrees, the resistance is only 138 ohms, while yours is 600 ohms
If the PT100 value is below 100 ohms, it’s damaged. Why are the replies from others only visible to the author?
There must be a problem with the thermal resistor; just replace it.