Installation Guide
Tools Needed:
- Adjustable wrench
- Screwdrivers (flat and Phillips)
- Level
- Tape measure
- Pipe wrench
- Drill with bits
Step-by-Step Installation
- Prepare Installation Area: Ensure cabinet opening meets required dimensions and has proper electrical and plumbing connections.
- Remove Packaging: Remove all shipping materials, tape, and protective coverings from the dishwasher.
- Connect Water Supply: Connect hot water supply line to the water inlet valve using new braided stainless steel hose.
- Connect Drain Hose: Route drain hose to drain connection with high loop to prevent backflow into dishwasher.
- Electrical Connection: Connect to dedicated 120V, 15A circuit with proper grounding. Follow local electrical codes.
- Secure in Cabinet: Level the dishwasher and secure to adjacent cabinets using mounting brackets provided.
- Test Operation: Run the dishwasher through a complete cycle to check for leaks and proper operation.
Specifications
| Model Number | GU1200XTLS3 |
| Type | Built-in Dishwasher |
| Color | Stainless Steel |
| Place Settings | 14 Place Settings |
| Noise Level | 48 dB |
| Control Type | Electronic Touch Controls |
| Energy Rating | ENERGY STAR® Certified |
| Water Consumption | 2.9 gallons per cycle |
| Power Requirements | 120V, 60Hz, 15A |
| Dimensions (HxWxD) | 34.5 x 23.75 x 24.5 inches |
| Weight | 95 lbs |
| Wash Cycles | 6 Wash Cycles |
Warranty Information
- Full Warranty: 1 year parts and labor
- Extended Warranty: 10 years on stainless steel tub
- Additional Coverage: Optional extended service plans available
For warranty service, contact Whirlpool Customer Service at 1-800-253-1301 or visit Whirlpool.com
Key Features
Soil Sensor
Advanced sensor technology automatically detects soil levels and adjusts wash time and water usage for optimal cleaning efficiency.
Third Rack
Extra third rack provides additional space for cutlery, utensils, and small items, maximizing loading capacity and organization.
Hard Food Disposer
Built-in hard food disposer grinds up food particles, eliminating the need for pre-rinsing dishes before loading.
Quiet Operation
Sound insulation and advanced motor technology provide quiet operation at only 48 dB, perfect for open-concept living spaces.
Sanitize Cycle
High-temperature sanitize cycle eliminates 99.9% of household bacteria, providing hygienically clean dishes for your family.
Energy Efficient
ENERGY STAR® certified design uses less water and energy, saving money on utility bills while being environmentally friendly.
Wash Cycle Options
Normal Wash
Standard cycle for everyday dishes with normal soil levels
Heavy Wash
Intensive cleaning for pots, pans, and heavily soiled items
Light Wash
Quick cycle for lightly soiled dishes and glassware
Rinse Only
Rinse cycle to prevent dried-on food without full wash
Sanitize
High-temperature cycle that eliminates bacteria
Delay Start
Program dishwasher to start at a later time
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Dishwasher won't start | Power issue, door not latched properly | Check power supply, ensure door is closed completely |
| Poor cleaning results | Overloading, wrong detergent, spray arms blocked | Load dishes properly, use correct detergent, check spray arms |
| Water not draining | Drain hose clogged, filter blocked | Check drain hose for obstructions, clean filter |
| Leaking water | Door not sealed, overfilling, loose connections | Check door seal, ensure proper loading, check connections |
| Unusual noises | Foreign objects in pump, spray arms hitting dishes | Check for foreign objects, rearrange load properly |
| Dishes not drying | Rinse aid empty, heating element issue | Refill rinse aid, check heating element operation |
Error Codes
- F1: Water supply issue - Check water supply and inlet valve
- F2: Drain issue - Check drain hose and pump
- F3: Temperature sensor issue - Contact service center
- F4: Heating element issue - Contact service center
- F5: Motor issue - Contact service center
- F6: Control board issue - Contact service center
Manual Downloads
Current Model Manuals
GU1200XTLS3
Built-in Dishwasher
GU1200XTLS2
Built-in Dishwasher
GU1200XTLS1
Built-in Dishwasher
GU1200XTLS0
Built-in Dishwasher
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