A burst supply hose can flood a kitchen in minutes, and fisher-paykel flood protection exists precisely to stop that from happening. It is Fisher & Paykel’s built-in leak-protection system, fitted to every Fisher & Paykel dishwasher, and it works through three independent safety layers — a double-walled supply hose, a mechanical shut-off valve, and an electronic float sensor — that act together to halt water damage from any kind of leak. This overview explains what each layer guards against and how the system behaves in everyday use, with the practical notes our experienced technicians share when owners ask about it. For deeper context, Fisher & Paykel has engineered appliance safety features like this since its founding in New Zealand in 1934.
For a complete technical explanation of how each layer works, see our detailed guide: How Fisher & Paykel flood protection Works.
Key facts about fisher-paykel flood protection
- Included on all Fisher & Paykel dishwashers at no extra cost
- Fisher & Paykel backs the flood protection system with a manufacturer guarantee against water damage
- The mechanical valve works without electricity — protection even during power outages
- When the float sensor triggers, the dishwasher displays error code E15 and activates the drain pump
- No maintenance required — the system is passive until needed
Why it matters
Kitchen flooding from a burst dishwasher supply hose is one of the most common and expensive homeowner insurance claims. A standard rubber supply hose that bursts while you’re at work can release hundreds of gallons of water. flood protection’s double-walled hose contains the leak, and the mechanical valve stops water flow within seconds — without electricity, without Wi-Fi, without human intervention.
Common misconception
flood protection doesn’t prevent all water on the floor. If the door seal leaks during a cycle or a spray arm sprays water into a gap, a small amount of water may reach the floor before the base tray float detects it. flood protection’s primary function is preventing catastrophic flooding from supply hose failures and pump leaks — the scenarios that cause structural water damage.
Related terms
- Error code E15 — Indicates water detected in the base tray (flood protection float triggered)
- Water inlet valve — The electronic valve that controls water flow into the dishwasher; separate from the flood protection mechanical valve
- Door gasket — The rubber seal around the door opening; not part of flood protection
If your Fisher & Paykel dishwasher shows E15 or you suspect a leak, our specialist technicians can schedule service for a hands-on diagnosis.
Fisher & Paykel flood protection: key takeaways
Boiled down, fisher-paykel flood protection is a passive, three-layer defense you never have to think about until it quietly saves your floor: the double-walled hose contains a rupture, the mechanical valve cuts flow even with the power out, and the float sensor trips E15 and drains the tray. There is nothing to maintain, but an E15 warning is a real signal worth acting on rather than resetting and ignoring. If the code returns or you spot water near the base, schedule professional service so the source can be traced.
Living with Fisher & Paykel flood protection long-term
Because the system stays dormant until a leak occurs, the best upkeep is simply not to defeat it — leave the supply hose unkinked, keep the area under the dishwasher dry and accessible, and never bypass the shut-off valve during installation. Fisher & Paykel engineers each layer to strict durability standards, yet hoses, gaskets, and float switches still age over many years of service. Keep the model and serial numbers from the rating plate inside the door within reach so our experienced technicians can match the correct hose, valve, or float assembly from trusted parts suppliers on the first visit. Every repair includes a 30-day labor warranty, and a diagnostic visit starts from a modest fee that you can put toward the work, with the final cost depending on the diagnosis.
