GreenFlow knowledge center
What can we help you find?
Search brands, product models, troubleshooting codes, and AHRI certificates in one place.
Search results
Results for “NFB”
240+ results found.
Troubleshooting · NavienNavien NFB-399C E784Abnormal operation: zone controller communication
Troubleshooting · NavienNavien NFB-175H E205Heating supply temperature sensor
Troubleshooting · NavienNavien NFB-399C E047Exhaust thermostat or thermistor open/short
Troubleshooting · NavienNavien NFB-301C E775Auto reset limit
Troubleshooting · NavienNavien NFB-301C E003Ignition failure
Troubleshooting · NavienNavien NFB-301C E060Abnormal operation: dual venturi
Troubleshooting · NavienNavien NFB-399C E218Heating return temperature sensor
Troubleshooting · NavienNavien NFB-301C E205Heating supply temperature sensor
Troubleshooting · NavienNavien NFB-301C E517Abnormal operation: DIP switch setting
Troubleshooting · NavienNavien NFB-399C E736Abnormal operation: cascade communication
Troubleshooting · NavienNavien NFB-175H E515Abnormal operation: PCB
Troubleshooting · NavienNavien NFB-175H E786Improper front panel or panel connection