Maytag 11 Series - User Manual

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Summary

Component Testing Procedures

Oven Light, Indicator, and Switch Tests

Tests for oven light socket, indicator lights, and various switches.

Heating Element & Motor Testing

Procedures for testing heating elements, convection motor, limiter, and sensor.

Infinite Switch and Ribbon Element Testing

Testing infinite switches and 1200W ribbon elements.

Additional Ribbon Element & Circuit Breaker Tests

Testing other ribbon elements and the circuit breaker.

H1 Control Feature & Function Testing

Testing H1 control features like shutoff, Sabbath, lockout, and diagnostics.

H1 Control Panel and Relay Logic

Testing H1 control panel matrix and relay logic.

H1 Electronic Range Control (ERC) Quick Test Mode

H1 Control Quick Test Display

Displays and responses during H1 control quick test mode.

H1 Control Error Code Descriptions

Explanation of error code structure and digits for H1 control.

H1 Control Diagnostic Codes

H1 Control Diagnostic Code Checking

List of diagnostic codes, their meanings, and detection times.

H1 Control Diagnostic Code Handling

Actions taken by the control based on diagnostic codes.

H1 Control Notes and Latch Faults

H1 Control Notes and Latch Fault Conditions

Explanations of control notes and special conditions for latch faults.

Summary

Component Testing Procedures

Oven Light, Indicator, and Switch Tests

Tests for oven light socket, indicator lights, and various switches.

Heating Element & Motor Testing

Procedures for testing heating elements, convection motor, limiter, and sensor.

Infinite Switch and Ribbon Element Testing

Testing infinite switches and 1200W ribbon elements.

Additional Ribbon Element & Circuit Breaker Tests

Testing other ribbon elements and the circuit breaker.

H1 Control Feature & Function Testing

Testing H1 control features like shutoff, Sabbath, lockout, and diagnostics.

H1 Control Panel and Relay Logic

Testing H1 control panel matrix and relay logic.

H1 Electronic Range Control (ERC) Quick Test Mode

H1 Control Quick Test Display

Displays and responses during H1 control quick test mode.

H1 Control Error Code Descriptions

Explanation of error code structure and digits for H1 control.

H1 Control Diagnostic Codes

H1 Control Diagnostic Code Checking

List of diagnostic codes, their meanings, and detection times.

H1 Control Diagnostic Code Handling

Actions taken by the control based on diagnostic codes.

H1 Control Notes and Latch Faults

H1 Control Notes and Latch Fault Conditions

Explanations of control notes and special conditions for latch faults.

This document provides technical information and procedures for the MER5875RC* and AER5815RC* electric freestanding ranges. It's designed for authorized technicians to ensure safe and proper servicing.

Function Description

These electric freestanding ranges are kitchen appliances designed for cooking. They feature multiple ribbon elements on the cooktop for various heating needs, along with an oven for baking, broiling, and convection cooking. The cooktop elements offer different wattages, including dual and triple elements for versatile cooking. The oven includes a hidden bake element for easier cleaning and a convection feature for more even heat distribution.

Usage Features

The ranges are equipped with a variety of features to enhance the cooking experience:

Cooktop Elements: The cooktop includes ribbon elements with varying power levels. Some models feature dual and triple elements, allowing users to select different heating zones or power outputs for different pot and pan sizes. A warming zone element is also available on some models to keep food warm without overcooking. Hot surface indicator lights are present to warn users when elements are still hot after use.
Oven Functions: The oven supports multiple cooking modes, including bake, broil, and convection bake. The convection feature uses a fan to circulate hot air, promoting faster and more even cooking.
Control Panel: The control panel, referred to as H1, provides an interface for setting oven functions, temperature, and time. It includes pads for various operations like BAKE, BROIL, KEEP WARM, CLEAN, COOK & HOLD, FAVORITES, TIMER, CLOCK, OVEN LIGHT, and CANCEL.
Sabbath Mode: This feature allows the oven to operate for an extended period (72 hours) without requiring user interaction, making it suitable for religious observances. It disables certain functions like the 12-hour shutoff and pad inputs, except for CANCEL and CLOCK.
Child Lockout: A safety feature that prevents children from accidentally programming or operating the oven. When activated, the electronic oven control is disabled, and "LOCK" flashes while the door is locking.
Automatic Shutoff: The oven includes a 12-hour automatic shutoff feature, which cancels cooking operations and disables relay drives after 12 hours of inactivity, enhancing safety.
Oven Light: An interior oven light allows users to view the cooking progress without opening the oven door.
Oven Capacity: The oven offers a generous 5.3 cubic foot capacity, accommodating larger dishes and multiple items.
Temperature Adjustment: The oven temperature can be adjusted in 5-degree increments from -35 to +35 degrees using the AUTOSET pads, allowing for precise temperature calibration. This adjustment is retained even after a power failure.
Clock Display: The control panel displays the time and can be toggled between 12-hour and 24-hour formats. The clock display can also be turned on or off.
Temperature Display: The temperature display can be toggled between Fahrenheit (°F) and Celsius (°C).
Factory Default Reset: The clock can be reset to factory settings.

Maintenance Features

The document outlines various procedures and diagnostic tools for maintaining and troubleshooting the range:

Component Testing Procedures: Detailed instructions are provided for testing individual components such as oven light sockets, indicator lights, rocker switches, door plunger switches, door lock switches, autolatch assemblies, broil elements, bake elements, convection elements, convection motors, limiters, temperature sensors, infinite switches (for various elements), ribbon elements, and backguard outlet circuit breakers. These procedures typically involve measuring voltage, resistance, or continuity to determine component functionality.
"Quick Test" Mode: This diagnostic mode for the H1 Electronic Range Control (ERC) allows technicians to quickly check various oven functions and relay activations. It's accessed by pressing and holding CANCEL and BROIL pads and then pressing specific pads to activate responses like bake relay activated, broil relay activated, or display diagnostic codes. This mode is disabled if the temperature sensor is above 400°F.
Diagnostic Code Display Mode: This mode allows technicians to view the last five diagnostic codes stored in the non-volatile memory. These codes are four digits long and provide information about primary system issues (e.g., control circuit board, sensor, control input, door lock), measurable parameters (diagnostic or control-related), secondary system issues (sequential numbering), and oven cavity (upper, lower, or control specific). This mode is activated by pressing and holding the AUTOSET pad during power-up.
Diagnostic Code Checking and Handling: A comprehensive table lists various diagnostic codes, their descriptions, when they are checked, and the detection methods. It also details the "Action Taken By Control" for each code, which includes disabling outputs, flashing "BAKE" or "LOCK," or completely disabling the oven. This helps technicians understand the range's response to detected faults.
Control Notes: Important notes provide additional context for understanding diagnostic actions, such as how "Action Taken" applies, conditions for cook function continuation, flash rates for error displays, and special conditions for latch faults (9dxx codes). These notes explain the logic behind the control's behavior, including attempts to recover from faults, logging to EEPROM, and disabling affected components.
Wiring Diagrams and Schematics: The manual includes detailed wiring diagrams and schematics for various series of the MER5875RC* and AER5815RC* models. These diagrams are crucial for tracing electrical connections, identifying components, and troubleshooting electrical issues.
Safety Warnings: Throughout the document, prominent warnings emphasize the importance of disconnecting power to the range before servicing to prevent electrical shock, personal injury, or death. Technicians are advised to follow all safety information provided in the service manual.
Component Identification: Illustrations and descriptions help technicians identify specific components, such as different types of infinite switches for various elements (low heat, dual, triple), and their corresponding terminals for testing.
Relay Logic: A table illustrating H1 Control Relay Logic shows which elements (bake, broil, convection element, convection fan, oven light) are activated or controlled by temperature in different cooking modes (idle, bake preheat, bake, broil preheat, broil, clean preheat, clean, keep warm, convection bake preheat, convection bake). This helps in understanding the expected operation of the relays during various cooking cycles.