Rinnai FUA-E, Service Manual

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27
Error Codes
Error Fault Action Step
Combustion fan overcurrent. Unit
operates, then stops.
Check flue terminal for blockages visual
10
Check Flue V
Check combustion fan. A
Check Gas Supply is correct S
Check Gas Isolating Valves are open visual
Check Electrode B
Check Flame Rod C
11 Missed or No Ignition. Unit stops
without flame igniting
Check Sparker B
Check Solenoids D
Check Gas Filter F
Check Earth Wire H
Check Flue V
Check gas pressure manual
Check injector manifold is correct for gas type manual
Check Gas Type Dip Switches for Nat. Gas or LPG. manual
Check Gas Supply is correct S
Check Gas Isolating Valves are open visual
Check Flame Rod C
Check Earth Wire H
12 Flame Failure / Earth Leakage Check Flue V
Lost Ignition Check Gas Filter F
Check Gas Type Dip Switches for Nat. Gas or LPG. manual
Check gas pressure manual
Check Remote control I
14
Thermal Fuse and/or overheat
switch activated, unit operates,
then stops
Check Overheat Circuit E
incl. Thermal Fuse (thermal overload wire) E
incl. Overheat switch (black tophat style bi-metal) E
Check Gas Type Dip Switches for Nat. Gas or LPG. manual
Check gas pressure
manual
Check combustion dip switch manual
16
Over temp warning. Unit operates,
then stops.
Check Gas Type Dip Switches for Nat. Gas or LPG. manual
Check modulating solenoid valve
D
Check gas pressure manual
Check combustion dip switch manual
Check water flow sensor J
Check water flow servo G
Check Heat Ex outlet temperature thermistor K
Check hot water outlet thermistor K
32 Outlet water thermistor faulty Check hot water outlet thermistor K
34 Combustion air thermistor faulty Check Combustion Air Thermistor. K
61 Combustion Fan rotation error Check combustion fan. A
71 Solenoid valve circuit error. Unit
does not operate
Check Gas Valves are open visual
Check Solenoids D
72 Flame Rod Circuit Error. Unit
does not operate
Check Flame Rod C
-
No combustion despite remote
control indicating that combustion
is occurring - if remote controllers
are installed
Check water flow sensor J
Check Flame Rod C
Check hot water outlet thermistor K
Check combustion fan. A
Check Sparker B
Check Gas Valves are open visual
Check Overheat Circuit E