Urbana U50I-S, Installation Manual, Page: 47 / 51

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Troubleshooting
Check for logs/rocks covering air slots
Check for excessive burner media (no more than 1 layer thick)
Check for foreign burner media
Leaking burner Ensure burner is sealed Visually inspect burner for leaks; replace if necessary - DO NOT TEST WITH OPEN FLAME
Blue fl ames (excessive) Fireplace is warming up Flames will yellow as fi replace heats up This is normal
Too much primary air Decrease primary air by closing air shu � er (venturi) See "Adjus � ng Primary Air Se � ng"
Poor air shu � er seal on venturi box
Exhaust restrictor se � ng Improper exhaust restrictor se � ng See "Ven � ng Con fi gura � on"; adjust only if necessary
Rich fl ames (excessive) Not enough primary air Increase primary air by opening air shu � er (venturi) See "Adjus � ng Primary Air Se � ng"
(NG) Remove venturi box covers for even more primary air Check that the venturi box covers are removed (LP)
Improper exhaust restrictor se � ng Adjust exhaust restrictor se � ng See "Ven � ng Con fi gura � on"; adjust only if necessary
Problem with ven � ng system Ensure ven � ng system is properly set-up Check for approved high-wind termina � on cap
Check ven � ng con fi gura � on is approved
Check ven � ng system for leaks
Incorrect media placement Adjust burner media Check log posi � oning
Check burner media quan � ty (should be one layer deep)
Check for obstructed seconard air slots around burner
Incorrect gas input rate Ensure gas input spec's match ra � ng label Check gas inlet pressure
Check gas manifold pressure (with unit running)
Check gas ori fi ce matches ra � ng label for correct fuel type
Glass fogs on start-up Condensa � on is formed on start up Use "Con � nuous Pilot" mode (CPI) This is normal, more so in damper climates
Glass gets hazy over � me Addi � ves in gas accumulates on glass Use "Con � nuous Pilot" mode (CPI) This will reduce the build-up rate; clean as necessary
Chase construc � on obstruc � on Ensure all installa � on spec's are met Ensure heat release areas are at or above minimum spec
Ensure no air fl ow obstruc � ons Check for foreign objects blocking heat release
Ensure all appropriate heat shields are installed Check installa � on sec � on for further details
Material encroaching on minimum clearances Ensure all installa � on spec's are met Check installa � on sec � on for further details
Ensure there're no foreign objects on or above the unit within the chase
Problem with ven � ng system Ensure ven � ng system is properly set-up Check ven � ng con fi gura � on is approved
Check for ven � ng obstruc � ons
Exhaust restrictor se � ng Exhaust restrictor se � ng too high Reduce exhaust restric � on
Incorrect gas input rate Ensure gas input spec's match ra � ng label Check gas inlet pressure
Check gas manifold pressure (with unit running)
Check gas ori fi ce matches ra � ng label for correct fuel type
Burnt out light bulb Replace light bulb assembly (50-3516) Visually inspect bulb for signs of damage, con fi rm con � nuity with mul � meter
Blown top light fuse Replace top light fuse (50-2076) Visually inspect bulb for signs of damage, con fi rm con � nuity with mul � meter
Faulty wiring Ensure complete top light circuit Check for wire ch affi ng inside light box
Check top light circuit with mul � meter
Flame sensor signal lost during burner opera � on Ensure healthy burner opera � on See "Flame dropping out.."
Pilot igni � on sequence � med out Ensure healthy pilot opera � on See "Pilot not ligh � ng.."
Fireplace lost gas supply Ensure proper gas fl ow and pressure Check gas inlet supply and pressure
IFC confused So � reset IFC Press reset bo � on on fi replace switch panel and re-sync remote (tool may be required)
Hard reset IFC Cut power to IFC (could use circuit breaker) and reconnect
No power to fi replace Ensure the fi replace is seeing 120VAC Check circuit breaker
Do any fi replace features work? If so, fi replace has power
Check for 120VAC at the IFC
Blown IFC fuse Replace IFC fuse with exact replacement Check for bare electrical connec � ons
Check for electrical short in top light box
Was there a recent power surge?
IFC locked out Reset IFC See "IFC locked out" for possible causes
Natural vent Power vent mode ac � vated PV switch in incorrect posi � on Check the posi � on of PV switch - the "-" should be down if opera � ng with natural vent
PV jumper came lose inside IFC Ensure the IFC PV jumper hasn’t come lose inside the IFC (orange wires)
Power vent Natural vent mode ac � vated PV switch in incorrect posi � on Check the posi � on of PV switch - the "o" should be down if opera � ng with power vent
IFC not receiving vacuum switch signal Ensure vacuum switch signal reaching IFC Ensure secure wiring interceptor connec � ons at IFC (yellow wires)
Check for con � nuity across vacuum signal while in start-up mode
Check for PV fan opera � on during start-up mode (can you hear it?)
If the sparker is ac � va � ng then PV start-up mode is func � oning, problem lies elsewhere
Fireplace gets excessivly hot
Fireplace unresponsive
IFC locked out (fl ahsing red
light)
Top light not working