Quote Originally Posted by topbanana View Post
Dear Bro,
Could you please tell me about carrier reefer (69NT40-541 301)? This unit was showing datacorder alarrm (dal 71).Please advise what should I do it?

Hi, alarme DAL71 is a failure of return sensor of DataCorder (out of range).
Check the resistence of this sensor (in +25 celsius=10.000 Ohms, +/-50), out of this, replaced the sensor.

sorry my english, I'm practicing to improve.