Glow Brand · Boiler

Loc 9 EEPROM contents out of date

High severity Glow B85/B120/B160

What the control is telling you

The stored parameter memory on the control is not current.

Applies to: B85, B120, B160 (NG and LP)

Likely causes

  • Control memory fault

Test and repair steps

  1. Press RESET on the display, then the small reset button on the back of the ignition control board (ICB).
  2. If the same code keeps coming back, replace the ICB and the display board together.

Settings for these units

Maintenance intervals · Glow B85/B120/B160

ItemWhen
Annual inspection by a technicianEvery year (warranty)
Relief valve try-lever testAnnually
LWCO testAnnually
Condensate trap cleanAnnually (14.3)
Heat exchanger combustion-side washAnnually or when combustion drifts (14.4)
Burner door silicone gasketReplace if damaged or after 2 years
Service reminder2.203 on, interval 2.204 (default 1000 days)

Operating pressure should sit 5 psi under the relief valve rating (max 25 psig on a 30 psi valve); water never above 180 F.

Models that show this code

3 models in Glow B85/B120/B160

B120B160B85

Other codes on the same units

  • Loc 4 Blocking error lasted over 20 hours
  • Loc 5 Fan not running for more than 60 seconds
  • Loc 6 Fan running too slow for more than 60 seconds
  • Loc 7 Fan running too fast for more than 60 seconds
  • Loc 8 Internal software fault
  • dAir De-air sequence running
  • init Display starting up
  • tESt System test active

Save it for the next call

Star this code in the HVACopedia app and keep the whole library on your phone for jobs with no signal.

Open the app

Source: Glow Brand B85/B120/B160 Installation & Operation Manual V20231025, Table 12.1 p.62. Summarized in our own words; check the original manual for your model.

Homeowner looking at this code? See what it means for you and when to call a technician.

For licensed technicians. Gas, electrical and refrigerant work must be done by a qualified, licensed person. Shut off power and gas before servicing, never bypass a safety control, and follow the manufacturer’s manual for the exact model; it and local codes always take priority. HVACopedia is not affiliated with any manufacturer; brand and model names only identify the equipment.