148 StarCool Alarm Codes And Actions

148  Tsup error
Description Supply air temperature error
Cause Activated when Tsup1 and Tsup2 deviates too much
Trouble
shooting
Possible causes:

  • Tsup1 and Tsup2 deviates too much

Trouble shooting:

  1. Try to correct the error by uploading the latest software version to the controller.
  2. Check trouble shooting information for AL 105 and AL 108
Criteria Difference between Tsup1 and Tsup2 integrated to more than 30°C_min, e.g. 1°C for 30 minutes, 6°C for 5 minutes or 30°C for 1 minute