Lippert water heater · 1 model line
Lippert water heater code E8: Air pressure switch not detected before ignition or cut off during normal operation
Lippert documentation lists E8 as “Air pressure switch not detected before ignition or cut off during normal operation”.
What code E8 means by model
| Model line | What the manufacturer says | Source |
|---|---|---|
| Girard GSWH-2 | The Lippert Girard GSWH-2 owner manual lists E8 as air pressure switch not detected before ignition or cut off during normal operation. | Lippert Girard GSWH-2 Tankless Water Heater Owner's Manual CCD-0006120 |
What you can safely check
- Turn hot-water demand off and do not keep cycling the heater.
- Check the exterior intake and exhaust area for visible obstruction without opening appliance service areas.
- Record the code, weather, visible vent condition, and whether the fan icon appeared.
- Contact Lippert/Girard or a qualified technician if E8 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
- E9 Flame sensor error because flame is sensed before ignition and the buzzer will sound
- 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