Water heater takes a very long time to deliver hot water to taps.

Note: This is usually a plumbing layout issue, not a heater defect.

• 1. Measure delay:
  • Time how long it takes for hot water to arrive at the furthest tap.
• 2. Check heater response:
  • Ensure the heater ignites promptly when a hot tap is opened (listen for fan and burner).
• 3. Improve plumbing:
  • Consider installing a hot water recirculation system if supported by your Panasonic model.
  • Insulate hot water pipes to reduce heat loss.
• 4. Relocate heater (long‑term): In some cases, relocating the heater closer to high‑use fixtures may be the best solution.