LG LMHM2237ST 2.2 cu. ft. Over-The-Range Microwave Oven Instruction Manual

1. Introduction

This manual provides essential information for the safe and efficient operation, installation, and maintenance of your LG LMHM2237ST 2.2 cubic feet over-the-range microwave oven. Please read this manual thoroughly before using your appliance and retain it for future reference.

2. Safety Information

Always follow basic safety precautions when using electrical appliances to reduce the risk of fire, electric shock, or injury to persons. This appliance is intended for household use only. Do not attempt to service this appliance yourself. Refer all servicing to qualified service personnel.

• Do not heat sealed containers in the microwave. Pressure buildup may cause the container to burst.
• Do not use corrosive chemicals or vapors in this appliance.
• Do not operate the oven if the door or door seals are damaged.
• Ensure proper grounding to avoid electrical shock.
• Supervise children closely when the appliance is in use.

3. Product Overview

The LG LMHM2237ST is a 2.2 cubic feet over-the-range microwave oven designed for efficient cooking and ventilation. It features a stainless steel exterior and a user-friendly touch control panel.

This image displays the front of the LG LMHM2237ST microwave oven, showcasing its stainless steel finish and integrated control panel on the door.

Key Features:

• 2.2 Cubic Feet Capacity: Provides ample space for various cooking needs.
• 1,000 Cooking Watts: Delivers powerful and efficient cooking performance.
• Sensor Cooking: Automatically adjusts cooking time and power for optimal results.
• 400 CFM Venting System: Effectively removes smoke, steam, and odors from your cooking area.
• ExtendaVent 2.0: An innovative ventilation system that extends to cover the entire cooktop surface, including front burners.
• EasyClean Interior: Designed for quick and easy cleaning, resisting stains and buildup.

A front view of the LG LMHM2237ST microwave, emphasizing the ExtendaVent 2.0 system, which extends to cover the front burners for enhanced ventilation.

The interior of the microwave is shown with the door open, revealing the glass turntable and an additional metal cooking rack, indicating its spacious 2.2 cubic feet capacity.

This image provides a detailed view of the microwave's touch control panel, featuring options for Sensor Cooking, Reheat, Cook, Popcorn, Defrost, Soften, Melt, Custom Cook, Power Level, Clock, Timer, Cook Time, Custom Set, Turntable On/Off, Add 30 seconds, Start/Enter, Stop/Clear, Energy Saving, Light, and Vent controls.

4. Setup & Installation

The LG LMHM2237ST is an over-the-range microwave oven designed to be installed above a cooking range. Due to the nature of this installation, which involves electrical wiring, ventilation ducting, and secure mounting, professional installation is highly recommended. Always ensure the appliance is properly grounded before use.

Pre-Installation Checks:

• Verify that the mounting surface is structurally sound and can support the weight of the microwave.
• Ensure proper electrical supply (120V, 60Hz, 15A or 20A circuit) is available.
• Confirm that the ventilation system is correctly configured for either ducted or ductless (recirculating) operation.

5. Operating Instructions

Your LG microwave oven offers a variety of cooking functions to simplify meal preparation.

Basic Microwave Cooking:

1. Place food in a microwave-safe container on the turntable.
2. Close the oven door.
3. Press the Cook Time button, then enter the desired cooking time using the number pad.
4. To adjust power level (if desired), press the Power Level button and select a level (e.g., 7 for 70%).
5. Press START/ENTER to begin cooking.

Sensor Cooking:

The Sensor Cooking feature detects the amount of humidity released from food and automatically adjusts cooking time and power for optimal results. Select the desired Sensor Cook option (e.g., Popcorn, Reheat, Potato) and press START/ENTER.

ExtendaVent 2.0 Operation:

To activate the ExtendaVent 2.0 system, locate the vent control buttons on the control panel. Press the Vent button to cycle through fan speeds (e.g., On/Off, 4 Speed) or to extend/retract the vent. The 400 CFM venting system efficiently removes cooking odors and steam.

Other Functions:

• Add 30 Seconds: Quickly adds 30 seconds to cooking time.
• Defrost: Use for thawing frozen foods based on weight or time.
• Soften/Melt: Ideal for softening butter or melting chocolate.
• Turntable On/Off: Allows you to stop the turntable rotation for larger dishes.
• Clock/Timer: Set the time of day or use as a kitchen timer.

6. Maintenance & Cleaning

Regular cleaning and maintenance will ensure the longevity and optimal performance of your microwave oven.

EasyClean Interior:

The EasyClean interior allows for quick and easy cleaning without the need for harsh chemicals. Simply wipe the interior with a damp cloth after each use to prevent food splatters from drying and hardening.

Exterior Cleaning:

• Wipe the exterior surfaces, including the stainless steel finish, with a soft, damp cloth and mild soap.
• Avoid abrasive cleaners or scouring pads that can scratch the surface.
• Clean the control panel with a soft, damp cloth. Do not spray cleaners directly onto the panel.

Grease Filter Maintenance:

The grease filters located underneath the microwave should be cleaned regularly (typically monthly) to maintain proper ventilation. Remove the filters, wash them in hot water with detergent, rinse thoroughly, and allow them to dry completely before reinstalling.

7. Troubleshooting

If you experience issues with your microwave oven, consult the following common troubleshooting steps before contacting service.

• Oven does not start: Ensure the door is securely closed. Check if the appliance is plugged in and the circuit breaker has not tripped.
• Food not cooking evenly: Ensure the turntable is properly seated and rotating. Stir or rotate food halfway through cooking.
• Excessive noise during operation: Check for any obstructions on the turntable or inside the oven cavity. Ensure the microwave is level.
• Ventilation fan not working: Check if the fan is turned on. Ensure filters are clean and not obstructed.

If the problem persists after attempting these steps, please contact LG customer support or a qualified service technician.

8. Specifications

9. Warranty & Support

For detailed warranty information, please refer to the warranty card included with your product or visit the official LG website. If you require technical assistance, parts, or service, please contact LG customer support. Have your model number (LMHM2237ST) and serial number ready when contacting support.

You can typically find contact information for LG customer support on their official website or in the documentation provided with your appliance.