RBI · Error codes
RBI error codes and alerts
Identical code numbers can mean different things on different controllers, so every entry is tied to the documented series, controller and manual version. A code is never a diagnosis.
If you smell gas
- Stop what you are doing. Do not use phones, switches, matches or anything that can spark inside.
- Go outside and leave the door open behind you.
- Call the FortisBC 24-hour emergency line at 1-800-663-9911 or dial 911.
Only after that, call ROMA about the boiler. Official guidance: FortisBC gas leaks and odour.
RBI Infinite Energy² condensing boilers (Loc lockouts and Err blocking errors, IOM IE2IBIOM-3)
Loc 1
No flame detected after five ignition attempts. Checks: Correct gas supply pressure (see Section 14.7); Ignition spark (see Section 16.4); C…
Lockout
Loc 2
Gas valve not supplied before try to ignition (When this error happens to burner 1 (MASTER) stops all other burners). Checks: a - Check High…
Lockout
Loc 3
Gas valve lost cable connection during fire. Checks: Check the integrity of the wires connections between gas valve and control board Soluti…
Lockout
Loc 4
Gas valve relay not closing. Checks: Check the integrity of the wires connections between gas valve and control board Solutions: If wires ar…
Lockout
Loc 5
Gas valve circuit (When this error happens to burner 1 (MASTER) stops all other burners). Checks: Check High limit temperature switch Check …
Lockout
Loc 6
Safety relay open error. Solutions: Replace the power control board The table classifies it as Lockout (Loc).…
Lockout
Loc 7
Safety relay closed error. Solutions: Replace the power control board The table classifies it as Lockout (Loc).…
Lockout
Loc 11
Blocking error over 20 hr. Checks: Press RESET button to see the Blocking error reference and proceed follow it The table classifies it as L…
Lockout
Loc 12
Fan error. Checks: Check for 120Vac power connection of the fan Check PWM connection of the fan Solutions: If no 120Vac is present replace t…
Lockout
Loc 13
Internal software error. Solutions: Replace the power control board The table classifies it as Lockout (Loc).…
Lockout
Loc 14
Internal software error. Solutions: Replace the power control board The table classifies it as Lockout (Loc).…
Lockout
Loc 16
Internal software error. Solutions: Replace the power control board The table classifies it as Lockout (Loc).…
Lockout
Loc 17
Internal software error. Solutions: Replace the power control board The table classifies it as Lockout (Loc).…
Lockout
Loc 18
Internal software error. Solutions: Replace the power control board The table classifies it as Lockout (Loc).…
Lockout
Loc 19
Internal software error. Solutions: Replace the power control board The table classifies it as Lockout (Loc).…
Lockout
Loc 20
Flame lost three times. Checks: Control: that the ionisation current is at a value over 60 (see parameter 1008) Control: that the fumes exha…
Lockout
Loc 21
Internal software error. Solutions: Replace the power control board The table classifies it as Lockout (Loc).…
Lockout
Loc 22
Internal software error. Solutions: Replace the power control board The table classifies it as Lockout (Loc).…
Lockout
Loc 23
Internal software error. Solutions: Replace the power control board The table classifies it as Lockout (Loc).…
Lockout
Loc 24
Internal software error. Solutions: Replace the power control board The table classifies it as Lockout (Loc).…
Lockout
Loc 25
Gas valve circuit (When this error happens to burner 1 (MASTER) stops all other burners). Checks: Check High limit temperature switch Check …
Lockout
Loc 26
Internal software error. Solutions: Replace the power control board The table classifies it as Lockout (Loc).…
Lockout
Loc 27
Flame present with closed gas valve. Solutions: Replace the gas valve The table classifies it as Lockout (Loc).…
Lockout
Loc 28
Flame present with closed gas valve. Solutions: Replace the gas valve The table classifies it as Lockout (Loc).…
Lockout
Loc 29
Interlock input (When this error happens to burner 1 (MASTER) stops all other burners). Checks: Check LWCO connection Check flue blocked pre…
Lockout
Loc 30
Internal software error. Solutions: Replace the power control board The table classifies it as Lockout (Loc).…
Lockout
Loc 31
Five times flame lost during one demand. Checks: Check for low gas supply pressure Check for any obstruction on air inlet / flue exhaust syt…
Lockout
Loc 32
Internal software error. Solutions: Replace the power control board The table classifies it as Lockout (Loc).…
Lockout
Loc 33
Internal software error. Solutions: Replace the power control board The table classifies it as Lockout (Loc).…
Lockout
Loc 34
Internal software error. Solutions: Replace the power control board The table classifies it as Lockout (Loc).…
Lockout
Loc 35
Internal software error. Solutions: Replace the power control board The table classifies it as Lockout (Loc).…
Lockout
Loc 36
Internal software error. Solutions: Replace the power control board The table classifies it as Lockout (Loc).…
Lockout
Loc 37
Internal software error. Solutions: Replace the power control board The table classifies it as Lockout (Loc).…
Lockout
Loc 38
flue gas sensor does not increase. Checks: Check flue gas sensor match Section 16.10 Check if flue gas sensor (parameter 1006) increases its…
Lockout
Err 0
Main board error. Checks: Check the control board fuse (“B” of Figure 15-3) Check that all the temperature sensors are in a plausi- ble fiel…
Details
Err 45
Internal software error. Solutions: Replace the power control board The table classifies it as Blocking error (Err).…
Details
Err 46
Internal software error. Solutions: Replace the power control board The table classifies it as Blocking error (Err).…
Details
Err 47
Internal software error. Solutions: Replace the power control board The table classifies it as Blocking error (Err).…
Details
Err 48
Internal software error. Solutions: Replace the power control board The table classifies it as Blocking error (Err).…
Details
Err 49
Internal software error. Solutions: Replace the power control board The table classifies it as Blocking error (Err).…
Details
Err 50
Internal hardware error. Solutions: Replace the power control board The table classifies it as Blocking error (Err).…
Details
Err 51
Internal hardware error. Solutions: Replace the power control board The table classifies it as Blocking error (Err).…
Details
Err 52
Internal hardware error. Solutions: Replace the power control board The table classifies it as Blocking error (Err).…
Details
Err 53
Internal hardware error. Solutions: Replace the power control board The table classifies it as Blocking error (Err).…
Details
Err 54
Flame is detected in a state in which no flame is allowed to be seen. Solutions: Replace the power control board The table classifies it as …
Lockout
Err 55
Low water pressure error. Checks: Check pressure sensor Solutions: Replace the pressure sensor The table classifies it as Blocking error (Er…
Details
Err 56
Low water pressure error. Checks: Check pressure sensor Solutions: Replace the pressure sensor The table classifies it as Blocking error (Er…
Details
Err 57
Low water pressure error. Checks: Check pressure sensor Solutions: Replace the pressure sensor The table classifies it as Blocking error (Er…
Details
Err 58
Low water pressure error. Checks: Check pressure sensor Solutions: Replace the pressure sensor The table classifies it as Blocking error (Er…
Details
Err 59
Low water pressure error (This error stops all modules). Checks: Check the pressure into the water system and eventually increase it Solutio…
Details
Err 60
High flue gas temperature error. Checks: Check if return temperature is higher than 145°F (62°C) at high fire (see also Section 4.1); Check …
Details
Err 61
Return temperature is higher than 176°F (80°C). Checks: Check if temperature sensor match Section 16.10 Check if supply and return pipe are …
Details
Err 62
Block drain switch is active (This error stops all modules). Checks: Check if the condensate drain is blocked Check if the condensate box is…
Details
Err 64
No correct Frequency signal or no correct ground connection or no communication with the WD. Checks: Check the frequency signal. It must be …
Details
Err 65
Hot neutral reversed. Checks: Check supply voltage polarity Solutions: Reverse supply voltage polarity, if it’s the case The table classifie…
Details
Err 66
Net freq. error detected in the main. Checks: Check the frequency signal. It must be between 58 and 62Hz Solutions: If out from range, ask y…
Details
Err 67
Faulty earth connection. Checks: Check the earth connection to the appliance Solutions: Repristinate the earth connection The table classifi…
Details
Err 68
Watchdog communication error. Solutions: Replace the power control board The table classifies it as Blocking error (Err).…
Details
Err 72
Supply sensor open Exchanger malfunction. Checks: Check if temperature sensor match Section 16.10 Check that the primary heat exchanger temp…
Details
Err 73
Return sensor open. Checks: Check if temperature sensor match Section 16.10 Solutions: If sensor do not match Section 16.10, it must be repl…
Details
Err 80
Supply sensor shorted. Checks: Check if temperature sensor match Section 16.10 Solutions: If sensor do not match Section 16.10, it must be r…
Details
Err 81
Return sensor shorted. Checks: Check if temperature sensor match Section 16.10 Solutions: If sensor do not match Section 16.10, it must be r…
Details
Err 84
DHW sensor shorted. Checks: Check if temperature sensor match Section 16.10 Solutions: If sensor do not match Section 16.10, it must be repl…
Details
Err 86
Flue sensor shorted. Checks: Check if temperature sensor match Section 16.10 Solutions: If sensor do not match Section 16.10, it must be rep…
Details
Err 87
Reset button error. Checks: Too many reset button pushing in 60 sec The table classifies it as Blocking error (Err).…
Details
Err 93
Appliance selection error. Checks: Check the list of 3000 parameters (Section 20) The table classifies it as Blocking error (Err).…
Details
Err 107
Internal software error. Solutions: Replace the power control board The table classifies it as Blocking error (Err).…
Details
Err 108
Internal software error. Solutions: Replace the power control board The table classifies it as Blocking error (Err).…
Details
Err 109
Error happening to burners 2, 3 or 4. Checks: When burner 1 (MASTER) goes in a general error, will stops burners 2, 3 and 4 generating an “E…
Details
Err 110
Flapper valve not open error. Checks: Check for any obstruction into the exhaust system Check if the fan is running Check the flapper valve …
Details
Err 111
Flapper valve not closed error. Checks: Check the flapper valve and its control sensor (See Figure 3-2 items 32 and 33) Solutions: Replace t…
Details
Err 112
Internal software error. Solutions: Replace the power control board The table classifies it as Blocking error (Err).…
Details
Err 113
Internal software error. Solutions: Replace the power control board The table classifies it as Blocking error (Err).…
Details
Err 114
Too low water flow. Checks: Check water flow into the system (parameter 1062), it must be higher than parameter 3035. Solutions: Increase th…
Details
Err 115
Multiple burner master failure. Solutions: Reset via 3013 parameter The table classifies it as Blocking error (Err).…
Details
Err 116
Multiple burner communication failure (This error will stops all modules) Microprocessor in lockout 15-3 - Control board. Checks: Bus commun…
Details
Talk to a boiler technician
Describe what the boiler is doing and get a straight answer about the next step.
On-site service in Greater Vancouver, BC. ROMA lists “Open 7 days” on its site; call to confirm same-day availability.