3
Service Manual for
AHPO / EPO Proofer Oven
TABLE OF CONTENTS
INTRODUCTION ........................................................................................................................................... 4
INSTALLATION ..................................................................................................................................... 4
OPERATION ........................................................................................................................................... 4
CLEANING ............................................................................................................................................ 4
TOOLS ........................................................................................................................................................ 4
STANDARD ........................................................................................................................................... 4
SPECIFICATIONS .......................................................................................................................................... 5
REMOVAL AND REPLACEMENT OF COMPONENTS ............................................................................. 6
ELECTRICAL LOCKOUT/TAGOUT PROCEDURE ........................................................................... 6
COVERS AND PANELS ........................................................................................................................ 6
General Service Notes .................................................................................................................... 6
Proofer Rear Panel .......................................................................................................................... 6
Oven Rear Panels ............................................................................................................................ 6
Oven Fan Cage and Wire Harness Cover ....................................................................................... 7
Proofer Floor Panel ......................................................................................................................... 7
Oven Ceiling Panel ......................................................................................................................... 8
Control Panel .................................................................................................................................. 8
AC Power Access Panel ................................................................................................................. 9
AC INPUT VOLTAGE WIRING CONNECTIONS .............................................................................. 9
INTERNAL LAMP REPLACEMENT ................................................................................................... 9
CONTROL PANEL COOLING FAN ................................................................................................... 10
PROOFER LIGHTS CIRCUIT BREAKER ......................................................................................... 10
BUZZER ............................................................................................................................................... 11
OVEN POWER SWITCH .................................................................................................................... 12
OVEN THERMOSTAT ......................................................................................................................... 12
OVEN TIMER ...................................................................................................................................... 12
PROOFER POWER SWITCH .............................................................................................................. 13
PROOFER THERMOSTAT .................................................................................................................. 13
PROOFER HUMIDITY CONTROL .................................................................................................... 14
PROOFER TIMER................................................................................................................................ 14
PROOFER HEAT ELEMENTS ............................................................................................................ 15
PROOFER HUMIDITY ELEMENT .................................................................................................... 15
PROOFER CIRCULATION FAN......................................................................................................... 16
OVEN HEAT ELEMENTS ................................................................................................................... 17
OVEN CIRCULATION FAN ............................................................................................................... 17
OVEN HI-LIMIT THERMOSTAT ....................................................................................................... 18
DOOR GASKET REPLACEMENT ..................................................................................................... 18
OVEN SAFETY SWITCH ................................................................................................................... 18
ADJUSTMENTS ........................................................................................................................................... 19
DOOR GASKET COMPRESSION CHECK ....................................................................................... 19
DOOR GASKET ADJUSTMENTS ...................................................................................................... 19
AIR WASH DOOR ADJUSTMENT .................................................................................................... 20
Air Wash Door Adjustment – Hinge Side ..................................................................................... 20
Air Wash Door Adjustment – Handle Side............................................................................................ 20
MAINTENANCE .......................................................................................................................................... 21
STAINLESS STEEL CARE .................................................................................................................. 21
GENERAL CLEANING ....................................................................................................................... 21
TROUBLESHOOTING ................................................................................................................................. 22
ELECTRICAL SCHEMATIC ........................................................................................................................ 23
