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Q: Failure of liquid temperature is too high

Check if the liquid temperature is higher than the alarm value which is stated in specification. Check if the liquid sensor is in good function (with correct resistance). Failure is caused by temperature controller if sensor is good.

Q: Failure of liquid temperature is too low

Check if the liquid temperature is lower than the alarm value which is stated in its specification. Check if the liquid sensor is in good function (with correct resistance). Check if liquid temperature is out of limitation of low temperature deviation. Failure is caused by broken temperature controller if the above items are checked and good.

Q: Failure of high temperature deviation

Check if liquid temperature is out of limitation of high temperature deviation. Failure is caused by broken temperature controller if the above items are checked and good.

Q: Failure of low temperature deviation

Check if liquid temperature is out of limitation of low temperature deviation. Failure is caused by broken temperature controller if the above items are checked and good.