1. Important Safety Instructions
Read all instructions carefully before using your microwave oven to prevent the risk of fire, electric shock, injury to persons, or exposure to excessive microwave energy.
- Do not attempt to operate this oven with the door open as this can result in harmful exposure to microwave energy.
- Do not place any object between the oven front face and the door or allow soil or cleaner residue to accumulate on sealing surfaces.
- Do not operate the oven if it is damaged. It is particularly important that the oven door closes properly and that there is no damage to the: (1) door (bent), (2) hinges and latches (broken or loosened), (3) door seals and sealing surfaces.
- The oven should not be adjusted or repaired by anyone except properly qualified service personnel.
- Always ensure the turntable is correctly positioned before operating the microwave.
- Do not heat liquids or other foods in sealed containers as they are liable to explode.
- Never use the microwave for deep-frying.
2. Product Overview
The Frigidaire FMOS1746BS Over-The-Range Microwave is designed for convenient and efficient cooking. Featuring a spacious 1.7 cubic feet capacity and a sleek stainless steel finish, it integrates seamlessly into modern kitchens. This model offers various cooking functions, including quick-start options and pre-set programs, along with practical features like bright exterior lighting and a powerful vent fan.

Figure 1: Front view of the Frigidaire FMOS1746BS Over-The-Range Microwave in Stainless Steel.

Figure 2: Interior view of the microwave with the door open, showing the glass turntable and spacious cavity.

Figure 3: Close-up of the control panel, displaying various cooking options and settings.
3. Setup and Installation
This microwave oven is designed for over-the-range installation. Professional installation is recommended. Refer to the detailed installation guide included with your appliance for specific instructions, mounting templates, and safety clearances.
3.1 Pre-Installation Checklist
- Ensure adequate cabinet space and proper electrical outlet (120V, 60Hz, 15 or 20A dedicated circuit).
- Verify wall structure can support the weight of the microwave (approximately 56 lbs).
- Confirm all mounting hardware and templates are present.
3.2 Venting Options
The unit can be vented externally (horizontal or vertical) or recirculated internally. Select the appropriate venting method before installation.
4. Operating Instructions
Familiarize yourself with the control panel for optimal use.
4.1 Basic Microwave Cooking
- Time Cook: Press 'Cook Time', enter desired cooking time using the number pad, then press 'Start'.
- Power Level: After setting 'Cook Time', press 'Power Level', enter a power level from 1-10 (10 being high), then press 'Start'.
4.2 Quick Start Options
- Add 30 Sec: Press 'Add 30 Sec' to start cooking immediately for 30 seconds at 100% power, or to add 30 seconds to an ongoing cooking cycle.
- Express Cook: Press any number from 1 to 6 for instant cooking at 100% power for that many minutes (e.g., '1' for 1 minute).
4.3 Pre-set Cooking Functions
Utilize dedicated buttons for common food items:
- Popcorn: Press 'Popcorn' for automatic popcorn preparation.
- Potato: Press 'Potato' for cooking potatoes based on quantity.
- Beverage: Press 'Beverage' for heating drinks.
- Reheat: Press 'Reheat' to warm up leftovers.
- Defrost (Weight/Time): Press 'Defrost Weight/Time' and follow prompts to defrost food by weight or time.
4.4 Special Features
- Surface Light: Press 'Surface Light' to illuminate the cooking surface below the microwave. Multiple brightness settings may be available.
- Vent Fan: Press 'Vent Fan' to activate the exhaust fan. Multiple speed settings (e.g., Low, High) are typically available.
- Mute/Sound: Some models allow muting all button sounds and beeps. Consult your specific model's manual for instructions on activating/deactivating this feature.
- Child Lock: To prevent unintended operation, a child lock feature can be activated. Typically, this involves pressing and holding a specific button (e.g., 'Cancel/Off' or a numbered key) for several seconds until a lock indicator appears.
5. Maintenance and Cleaning
Regular maintenance ensures optimal performance and longevity of your microwave oven.
5.1 Interior Cleaning
- Clean the interior with a mild detergent and a soft cloth. For stubborn stains, place a bowl of water with lemon slices inside and microwave for 2-3 minutes to loosen residue, then wipe clean.
- The glass turntable can be removed and washed with warm, soapy water or in a dishwasher.
5.2 Exterior Cleaning
- Wipe exterior surfaces, including the control panel, with a soft, damp cloth. For stainless steel, use a stainless steel cleaner for best results.
5.3 Filter Maintenance
- Grease Filters: Located on the underside of the microwave, these should be cleaned monthly or as needed. Remove, wash with warm, soapy water, rinse thoroughly, and replace.
- Charcoal Filter (for recirculating models): This filter is located behind the vent grille and should be replaced approximately every 6-12 months, depending on usage. It cannot be washed.
6. Troubleshooting
If you encounter issues with your microwave, try these common solutions before contacting service.
| Problem | Possible Cause | Solution |
|---|---|---|
| Oven will not start | Door not closed properly; Power cord unplugged; Fuse blown or circuit breaker tripped. | Ensure door is securely latched; Check power cord connection; Reset circuit breaker or replace fuse. |
| Food not heating evenly | Food not stirred or rotated; Turntable not rotating. | Stir or rotate food during cooking; Ensure turntable is correctly placed and not obstructed. |
| Excessive noise during operation | Turntable or support not correctly positioned; Fan operating. | Re-position turntable and support; Fan noise is normal during operation. |
| Display shows error code | Internal malfunction. | Unplug the oven for 30 seconds, then plug back in. If error persists, contact service. |
7. Specifications
| Feature | Detail |
|---|---|
| Brand | Frigidaire |
| Model Number | FMOS1746BS (Item Model Number: 330557133) |
| Capacity | 1.7 Cu. Ft. |
| Product Dimensions | 15.44 x 29.88 x 16.44 inches |
| Weight | 56 Pounds |
| Color/Finish | Stainless Steel |
| Manufacturer | Frigidaire |
8. Warranty and Support
This Frigidaire appliance comes with a limited warranty. Please refer to the warranty card included with your product for specific terms, conditions, and duration. For technical assistance, parts, or service, please contact Frigidaire Customer Support. You can find contact information on the official Frigidaire website or in your product documentation.
For additional information and support, visit the official Frigidaire Store: Frigidaire Store on Amazon





