HomeIndustries Use Cases PricingResources Book a TourLog In to MaintainXIndustries Use Cases PricingResources Book a TourLog In to MaintainX Back General • InspectionsFlame safety relay (FSR) faultTroubleshooting procedure when this fault occurs.CorrChoice Coatings05/02/2022Flame safety relay (FSR) faultTroubleshooting procedure when this fault occurs.Remove web from dryer Select dryer for "Interlock Bypass" from dryer control cabinet to allow manual igniting of dyer section.From dryer control cabinet enable dryer row to troubleshoot and "System Enable" to ignite dryer section.During ignition observe combustion air gauge and note what its value is. It should be between 3 - 5 in.WC.During ignition observe the natural gas gauge and note its value. It should be between 3 - 5 in.WC.If neither gauge is between 3 - 5 in.WC adjust its corresponding valve until 3 - 5 in.WC registers on the gauge. Also adjust the valves so both combustion air and natural gas pressures are equal to each other. The pic below shows a typical valve. Remove the slotted screw cap and use the phillips screw underneath to adjust pressures.If valve settings are correct and the FSR alarm is still displaying then check Honeywell burner control status on front of dryer main control cabinet. While ignited the "Flame Signal" display should increase from 0 to 5.0 VIf FSR alarm display does not reach 5.0V then check dryer section pilot wiring and connector for damage. If any damage appears repair and re-test.If all the above is correct replace pilot thermocouple in pilot assembly.Source: CorrChoice Coatings (Community Member)
Back General • InspectionsFlame safety relay (FSR) faultTroubleshooting procedure when this fault occurs.CorrChoice Coatings05/02/2022Flame safety relay (FSR) faultTroubleshooting procedure when this fault occurs.Remove web from dryer Select dryer for "Interlock Bypass" from dryer control cabinet to allow manual igniting of dyer section.From dryer control cabinet enable dryer row to troubleshoot and "System Enable" to ignite dryer section.During ignition observe combustion air gauge and note what its value is. It should be between 3 - 5 in.WC.During ignition observe the natural gas gauge and note its value. It should be between 3 - 5 in.WC.If neither gauge is between 3 - 5 in.WC adjust its corresponding valve until 3 - 5 in.WC registers on the gauge. Also adjust the valves so both combustion air and natural gas pressures are equal to each other. The pic below shows a typical valve. Remove the slotted screw cap and use the phillips screw underneath to adjust pressures.If valve settings are correct and the FSR alarm is still displaying then check Honeywell burner control status on front of dryer main control cabinet. While ignited the "Flame Signal" display should increase from 0 to 5.0 VIf FSR alarm display does not reach 5.0V then check dryer section pilot wiring and connector for damage. If any damage appears repair and re-test.If all the above is correct replace pilot thermocouple in pilot assembly.Source: CorrChoice Coatings (Community Member)
