Technical Information
5
MasterChef Ovens
Figure 5-13: Front Cover Plate (H 478x) ............................................................................... 39
Figure 5-14: Rear Cover Plate (H 478x) ................................................................................ 39
Figure 5-15: Air Shield Panel ................................................................................................ 40
Figure 5-16: Upper (or Single Oven) Cooling Fan Removal .................................................. 41
Figure 5-17: Lower Oven Cooling Fan Removal ................................................................... 42
Figure 5-18: Door Latch Manual Release (“P” Models Only) ................................................ 43
Figure 5-19: Door Lock Motor Assembly ............................................................................... 43
Figure 5-20: Door Lock Motor and Bowden Cable ................................................................ 44
Figure 5-21: Safety Cover Retaining Screws ........................................................................ 45
Figure 5-22: Accessing the Door Latch Assembly and Door Closed Switch ......................... 46
Figure 5-23: Door Latch Assembly ........................................................................................ 46
Figure 5-24: Removing the Oven Cavity Back Panel ............................................................ 47
Figure 5-25: Top Heater/Broiler Element .............................................................................. 48
Figure 5-26: Convection Element and Fan ............................................................................ 49
Figure 5-27: Convection Fan Retaining Screws .................................................................... 50
Figure 5-28: Self-Clean Thermostat Removal ....................................................................... 51
Figure 5-29: Rotisserie Motors and Screws .......................................................................... 52
Figure 5-30: Catalyst Insert Removal .................................................................................... 53
Figure 5-31: Top View of H 468x Door, Showing Cover Strip and Retaining Screws ........... 53
Figure 5-32: Inner Panel Removal (H 468x) .......................................................................... 53
Figure 5-33: Middle Panel Removal (H 468x) ....................................................................... 54
Figure 5-34: Door Outer Glass Pane Removal (H 39x, H 478x, H 488x) .............................. 54
Figure 5-35: Door Middle Glass Pane Removal (H 478x) ..................................................... 55
Figure 5-36: Door Middle Glass Pane Removal (H 39x and H 488x) .................................... 55
Figure 5-37: Door Inner Glass Pane Removal (H 39x, H 478x, H 488x) ............................... 56
Figure 5-38: Door Hinge Removal (H 39x, H 488x)............................................................... 57
Figure 5-39: Hinge Removal, Part 1 (H 478x) ....................................................................... 57
Figure 5-40: Hinge Removal, Part 2 (H 478x) ....................................................................... 58
Figure 5-41: Hinge Removal (H 468x) ................................................................................... 58
Figure 6-1: Overview of H 39x Series Electronic Boards ...................................................... 59
Figure 6-2: Overview of H 4xxx Series Electronic Boards ..................................................... 60
List of Tables
Table 1-1: Summary of H 39x MasterChef Ovens .................................................................. 6
Table 1-2: Summary of H 39x MasterChef Warming Drawers ................................................ 6
Table 1-3: Summary of H 4xxx MasterChef Ovens ................................................................. 7
Table 1-4: Summary of H 4xxx MasterChef Warming Drawers ............................................... 7
Table 1-5: Summary of EBA Filler Strips ................................................................................. 7
Table 4-1: Heater Element Specifications (H 39x Ovens) ..................................................... 27
Table 4-2: Heater Element Specifications (H 4xxx Ovens) ................................................... 27
Table 4-3: Heater Element Operation ................................................................................... 28
Table 4-4: Automatic Safety Shutdown Durations ................................................................. 28
Table 5-1: Self-Clean Thermostat Resistance Values ........................................................... 51
Table 6-1: Fault Codes .......................................................................................................... 60
Table 6-2: Programming Mode ............................................................................................. 63
Table 6-3: Service Mode ....................................................................................................... 64
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