Download Webasto Thermo 350 Technical data

List of Contents
5.
Thermo 230 / 231 / 300 / 301 / 350
Troubleshooting
5.1
5.2
5.3
General ................................................................................................................................................. 501
General Fault Symptoms ...................................................................................................................... 501
Fault Symptoms during Functional Checkouts and Error Code Output or Tests with
Diagnostic Computer, Components Tester or PC Heater Diagnosis .................................................... 503
5.3.1 General ...................................................................................................................................... 503
5.3.2 Fault Symptoms......................................................................................................................... 504
6.
Functional Checkouts
6.1
6.2
General ................................................................................................................................................. 601
Adjustments .......................................................................................................................................... 601
6.2.1 Adjustment of CO2 Contents ..................................................................................................... 601
6.3
Components Testing............................................................................................................................. 602
6.3.1
6.3.2
6.3.3
6.3.4
6.3.5
6.3.6
6.3.7
6.3.8
7.
602
602
602
603
603
604
604
604
Circuit Diagrams
7.1
8.
Temperature Sensor Resistance Check....................................................................................
Flame Sensor Resistance Check ..............................................................................................
Igniter Electrodes Check ...........................................................................................................
Igniter Box Check ......................................................................................................................
Fuel Pump Check ......................................................................................................................
Fan Motor Check .......................................................................................................................
Solenoid Valve Check ...............................................................................................................
Nozzle Block Preheater Check ..................................................................................................
General ................................................................................................................................................. 701
Servicing
8.1
8.2
8.3
8.4
8.5
General .................................................................................................................................................
Heater Servicing ...................................................................................................................................
Vehicle Servicing ..................................................................................................................................
Heater Test Run....................................................................................................................................
Maintenance .........................................................................................................................................
801
801
801
801
801
8.5.1 Inspection and Attachment of the Exhaust Muffler (only heaters from year of
production 1996 and up to production date 1996, calendar week 36; 3G......) .......................... 801
8.5.2 Burner Head Opening and Closing or Removal and Installation ............................................... 803
8.6
Visual Inspections and Regulations for Installation............................................................................... 804
8.6.1
8.6.2
8.6.3
8.6.4
8.7
804
804
806
806
Removal and Installation....................................................................................................................... 807
8.7.1
8.7.2
8.7.3
8.7.4
II
Connection to Vehicle Cooling System .....................................................................................
Connection to Vehicle Fuel System...........................................................................................
Combustion Air Supply ..............................................................................................................
Exhaust Line ..............................................................................................................................
Heater, Removal and Installation ..............................................................................................
Temperature Limiter, Replacement ...........................................................................................
Temperature Sensor, Replacement ..........................................................................................
Burner, Replacement.................................................................................................................
807
807
807
807