KitchenAid Superba Microwave Oven Combo

Repair Manual & Service Guide

Built-in Combination

Installation Guide

Tools Needed:

  • Phillips screwdriver
  • Flathead screwdriver
  • Voltage tester
  • Level
  • Tape measure
  • Wire strippers

Step-by-Step Installation

  1. Prepare Cabinet Opening: Ensure cabinet opening meets specified dimensions and is properly reinforced to support unit weight.
  2. Electrical Connection: Connect to dedicated 240V, 60Hz circuit with proper grounding. Follow local electrical codes.
  3. Ventilation Requirements: Install proper external ventilation system according to manufacturer specifications.
  4. Position Unit: Carefully slide the unit into the cabinet opening, ensuring proper alignment and clearance.
  5. Secure Mounting: Use provided mounting brackets and screws to secure the unit firmly in place.
  6. Connect Ventilation: Attach ventilation ductwork to the external vent connection.
  7. Test Operation: Perform initial test run to verify all functions operate correctly.
Warning: Installation must be performed by qualified technicians. Improper installation may void warranty and create safety hazards.

Specifications

Model Series KEMS308SBL / KEMS308SWH
Type Built-in Microwave Oven Combination
Color Stainless Steel / Black / White
Oven Capacity 4.8 cu. ft.
Microwave Capacity 1.4 cu. ft.
Control Type Electronic Touch Controls
Power Requirements 240V, 60Hz, 30A
Microwave Power 1000 Watts
Convection Power 3400 Watts
Dimensions (HxWxD) 36 x 24 x 25 inches
Weight 185 lbs
Ventilation External Vent Required

Warranty Information

  • Full Warranty: 1 year parts and labor
  • Extended Warranty: 5 years on magnetron
  • Additional Coverage: Optional extended service plans available

For warranty service, contact KitchenAid Customer Service at 1-800-422-1230 or visit KitchenAid.com

Key Features

Even-Heat™ True Convection

Third heating element and fan system ensures even heat distribution for consistent baking and roasting results.

Sensor Cooking Technology

Automatically adjusts cooking time and power based on steam sensors for perfect results every time.

Precise Chef™ System

Advanced temperature probe and control system maintains exact cooking temperatures for professional results.

EasyConvect™ Conversion System

Automatically converts conventional oven recipes to convection cooking settings.

Steam Bake Function

Adds steam during baking process for professional-quality crusty breads and pastries.

Dual Speed Broil

High and low broil settings provide flexibility for different broiling needs and food types.

Cooking Modes Explained

Convection Bake

Circulated hot air for even baking and roasting

Convection Roast

Higher temperature setting for perfect meat roasting

Sensor Microwave

Automatic cooking based on food moisture detection

Proof Mode

Maintains ideal temperature for dough rising

Warm Mode

Keeps cooked food at serving temperature

Self Clean

High-temperature cleaning cycle for oven interior

Troubleshooting

Problem Possible Cause Solution
Unit won't power on Power supply issue, circuit breaker tripped Check power supply, reset circuit breaker, verify proper voltage
Microwave not heating Magnetron failure, high voltage diode Check magnetron operation, test high voltage components
Oven not heating properly Heating element failure, temperature sensor Test heating elements, calibrate temperature sensors
Error codes displayed Sensor failure, control board issue Diagnose error code, check sensors and control board
Ventilation not working Fan motor failure, blocked vent Test fan motor, clear ventilation pathway
Door won't latch Door alignment, latch mechanism Adjust door alignment, repair/replace latch mechanism

Common Error Codes

  • F1: Control board communication error - Reset unit, check connections
  • F2: Oven temperature sensor failure - Replace temperature sensor
  • F3: Oven heating element issue - Check heating elements and relays
  • F4: Microwave magnetron error - Test magnetron and high voltage circuit
  • F5: Door switch malfunction - Check door switches and alignment
  • F7: Ventilation fan error - Test fan motor and control circuit

Manual Downloads

Current Model Manuals

KEMS308SBL

Superba Microwave Wall Oven Combo

KEMS308SWH

Superba White Microwave Combo

KEMS309SBL

Superba 30" Microwave Combo

KEMS306SBL

Superba 27" Microwave Combo

Popular Previous Models

KOCE500ESS

5.0 cu. ft. Electric Combo

KOCE700ESS

7.0 cu. ft. Electric Combo

KOCG500ESS

5.0 cu. ft. Gas Combo

KOEG500ESS

5.0 cu. ft. Electric Oven

Note: For models not listed here, please visit the KitchenAid Support Website for complete documentation.