Lippert water heater · 1 model line

Lippert water heater code E9: Flame sensor error because flame is sensed before ignition and the buzzer will sound

Lippert documentation lists E9 as “Flame sensor error because flame is sensed before ignition and the buzzer will sound”.

What code E9 means by model

Model lineWhat the manufacturer saysSource
Girard GSWH-2The Lippert Girard GSWH-2 owner manual lists E9 as flame sensor error because flame is sensed before ignition and the buzzer will sound.Lippert Girard GSWH-2 Tankless Water Heater Owner's Manual CCD-0006120

What you can safely check

  • Turn hot-water demand off and power-cycle once only from normal controls.
  • Record the code, set temperature, displayed temperature, and water-flow state.
  • Contact Lippert/Girard or a qualified technician if E9 returns.

Stop and call a technician for

  • Internal sensor, ignition, flame-sense, ECO, blower, pressure-switch, linear-valve, wiring, gas, and controller diagnosis is qualified service work.

The Girard GSWH-2 is an LP gas tankless water heater. Shut the heater off for gas odor, overheating, leaks, blocked exhaust, or repeated faults and use Lippert/Girard or qualified RV service.

Write this down before you call

  • Girard GSWH-2 model label
  • user control panel code
  • set and displayed temperature
  • water-flow state
  • LP and 12V status

Other codes on Lippert Girard tankless water heaters

Full table: Lippert Girard tankless water heaters

  • E0 Water outlet temperature probe failure
  • E1 Ignition failure or accidental flame off during ignition
  • E2 Flame sensing interrupted during normal operation and the buzzer will sound
  • E3 ECO open before ignition or during normal operation, commonly from outlet water temperatu…
  • E4 Water inlet temperature probe failure
  • E5 Blower motor failure because no motor signal was detected before ignition or during opera…
  • E6 Over temperature because outlet water temperature exceeded 140 F for 3 seconds
  • E7 Linear valve failure detected in the control circuit before ignition or during operation
  • E8 Air pressure switch not detected before ignition or cut off during normal operation
  • En System timer because the water heater ran longer than 20 minutes
  • Fd Fd as winter-use mode or freeze protection; the unit may run briefly and shut off in free…
  • steady on Internal control fault
  • 1 flash Air fault
  • 2 flashes Flame detection error
  • 3 flashes Lockout
  • 4 flashes Intentionally NA and reserved for future diagnostics
  • 5 flashes Low voltage

Related troubleshooting guides

Official sources