2888421 - L50 HEATER NOT WORKING / UNDER NO CIRCUMSTANCES

The fan which sends air into the passenger compartment does not come on
Results of the tests
1CLIMATE CONTROL FAN ELECTRICAL CIRCUIT CHECKAll OKProblems metOperation

Check, in order:

  • climate control fan fuse
  • climate control fan relay
  • climate control fan
  • climate control fan controls
  • connection between climate control fan and its controls, via the adjustment resistor See   E6010  HEATER
Continue to Step 2Connections not correctRestore the connections
Component defectiveReplace the component involved (if a fuse is involved, search for the cause of the problem)
Controls defectiveReplace control knob Op.   5020B10 
Electric fan defectiveReplace the electric fan Op.   5020A30 
2CHECKING CORRECT OPERATIONAll OKProblems metOperation
Check that the fault is no longer presentEnd of diagnosisFault persistsSearch for the fault starting from another symptom'