HVACopediaNavien · Boiler
Gas Consumption Service Status Info item 3 - Gas Consumption
What the display is showing
Service menu 1. Service Status Info, item 3: shows the monthly gas consumption.
Applies to: NHB-055H, NHB-080H, NHB-110H, NHB-150H
What to do
- Hold Back + Menu 3 s > 1. Service Status Info > pick the item.
Settings for these units
Installation clearances (indoor) · Navien NHB-H
| Side | Minimum clearance |
|---|---|
| Top | 9 in (229 mm) |
| Back | 0.5 in (13 mm) |
| Front | 4 in (100 mm) |
| Sides | 3 in (76 mm) |
| Bottom | 12 in (300 mm) |
| Vent to combustibles | 0 in |
Bracket gives 5/8 in (16 mm) from the wall; studs at 16 in on centre.
Common vent installs: 36 in above the top and 24 in in front are recommended for service.
Models that show this code
4 models in Navien NHB-H
Other codes on the same units
- Flame Loss - No. of Times EMS Data counter 3
- Flame Value Status Information item 15 - Flame Value
- Freeze Protection icon Freeze protection mode active
- Gas Status Information item 26 - Gas
- HEX Overheat - No. of Times EMS Data counter 2
- HTL Input Status Input/Output Status item 12 - HTL Input Status
- Heat Capacity Status Information item 2 - Heat Capacity
- High Altitude Status Information item 24 - High Altitude
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.
Source: Navien NHB-H Installation and Operation Manual, 11.13.1 Viewing Service Information, p.109. Summarized in our own words; check the original manual for your model.
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.