Manufacturers offer warranties to protect you from defects—but if the dishwasher is used improperly or serviced incorrectly, that warranty can go right out the window. Here are three common ways people unknowingly void their coverage:
1. DIY Repairs or Unlicensed Service
Most manufacturer warranties require that any repairs be performed by a licensed technician authorized by the brand. If a homeowner—or even a general handyman—tries to replace parts or troubleshoot wiring, it can void the warranty entirely.
Why it matters:
Untrained repairs can lead to more damage, incorrect installations, and safety hazards—especially with high-efficiency or electronic control models.
2. Using the Wrong Detergent or Additives
Using non-recommended detergent, especially in high-efficiency or ENERGY STAR-rated dishwashers, can damage internal components and cause buildup in spray arms, sensors, and drains.
Avoid:
- Regular dish soap (it creates foam and flooding)
- Homemade detergent
- Rinse aids or cleaners not approved by the manufacturer
Pro Tip: Check your user manual for recommended brands and formulas. Some manufacturers even list this on warranty paperwork.
3. Improper Installation
If the dishwasher wasn’t leveled properly, doesn’t have a proper drain loop, or isn’t hardwired/plumbed to code, you could be dealing with long-term issues—and a voided warranty.
Common install issues:
- Water pooling at the bottom (caused by poor leveling)
- Backflow or drainage problems (no high loop or air gap)
- Electrical problems due to improper grounding
Bonus Tip: Always Register Your Appliance
Many brands require online registration for warranty activation. If you skip this step, it could delay or deny future claims.
Some warranties are NOT transferable to a new owner, so if you do not have the original proof of purchase (receipt) then the warranty is no longer valid. Please note, keep a copy of your receipts for future reference when you purchase appliances.