Service Manual for Thermador Pro Grand Dual Fuel Ranges:
PRD304EG,
PRD364EDG, PRD364EDPG, PRD364ELG, PRD366EG, PRD366EPG, PRD484ECG, PRD484EEG, PRD486EDG, PRD486EDPG, PRD486ELG
58300000157422_ARA_EN_A
Page 2 of 95
TABLE OF CONTENTS
Technical Documents to Read Prior to Servicing .......................................... 6
Recommended Tools and Supplies .............................................................. 6
Safety Symbols Used In This Manual .................................................... 6
Safety Precautions to Know Prior to Servicing....................................... 6
Standard Burner Knob ........................................................................... 9
ExtraLow Burner Knob ........................................................................... 9
Griddle Control Knob ............................................................................. 9
Temperature Selector Knob ................................................................. 10
Five-Position Oven Function Selector Knob......................................... 10
Six-Position Oven Function Selector Knob .......................................... 10
Oven Lamp Switch............................................................................... 11
Operation During a Power Outage .............................................................. 11
Maintop Components and Burner Assembly ............................................... 11
Testing, Adjusting, Troubleshooting Burners and Ignition .............. 12
Rangetop Burner Characteristics ................................................................ 12
Rangetop Flame Characteristics ................................................................. 13
Testing Rangetop Burner Ignition................................................................ 14
Testing Ignition for HI, Medium, and Low Settings............................... 14
Testing Ignition for XLO Setting ........................................................... 14
Adjusting Grill Burner Flame with the Air Shutter ........................................ 14
Adjusting Rangetop Burner Valves Manually .............................................. 15
Special Tools Needed .......................................................................... 15
Adjusting the Bypass Screws............................................................... 15
Troubleshooting Burner, Flame, Ignition, and Elements ............................. 16
Burner and Flame Diagnostics for Rangetop Burners.......................... 16
Ignition Diagnostics for Rangetop Burners........................................... 16
Element Diagnostics ............................................................................ 18
Safety Practices for Element Diagnostics ..................................... 18
Element Diagnostic Tips ............................................................... 18
Element Cycle/Circuit Specification .............................................. 18
Preparing the Range for Servicing .............................................................. 21
Accessing Components under the Maintop................................................. 21
Removing Knobs, Grates, Trim, Burner Assemblies ............................ 21
Removing Spill Trays ........................................................................... 23
Removing Heat Shields ....................................................................... 23
Removing the Burner Support Rail ...................................................... 24
Griddle Removal and Replacement ............................................................ 26
Griddle with Removable Brackets – Removal and Replacement ......... 26
Griddle with Fixed Brackets – Removal and Replacement .................. 30
Grill Components – Removal and Replacement ......................................... 32