Raypak · Error codes
Raypak 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.
Raypak XVers L condensing boilers (error display items, I&O 241782)
OUTLET SEN
Check the outlet water sensor and its wiring. The table classifies it as Error display message.…
Details
LIMIT SEN
Check the high limit sensor and its wiring. The table classifies it as Error display message.…
Details
INLET SEN
Check the inlet sensor and its wiring. The table classifies it as Error display message.…
Details
GAS PRESS
Check PIM wiring. The table classifies it as Error display message.…
Details
IGNITION
Reset control, push and release RESET button. The table classifies it as Error display message.…
Details
LIMIT TRIP
Boiler temperature tripped the high limit. The table classifies it as Error display message.…
Details
FLAME
False flame detected. Shut off gas supply, recycle power. The table classifies it as Error display message.…
Lockout
ID CARD
Identity card, check ID card and wiring. The table classifies it as Error display message.…
Details
IGN CTRL
Internal control fault. Reset power, replace control. The table classifies it as Error display message.…
Details
DELTA T
Temperature difference between the inlet and outlet exceeded the setpoint. Check water flow. The table classifies it as Error display messag…
Details
LOW 24VAC
Low 24 VAC power. Check power supply wiring and transformer. The table classifies it as Error display message.…
Details
BLOW SPEED
Blower speed out of range. Check blower wiring and blower. The table classifies it as Error display message.…
Details
FLOW ERROR
The unit is not detecting enough flow to allow ignition sequence to take place. The table classifies it as Error display message.…
Lockout
UNDER FLOW
The flow reading has drop under minimum requirements to keep the current operation point. The table classifies it as Error display message.…
Details
FLOW WARNING
Operating conditions do not match current flow reading. The table classifies it as Error display message.…
Details
Raypak XTherm condensing boilers 1005A-2005A (error display items, I&O 241513)
OUTLET SEN
Check the outlet water sensor and its wiring. The table classifies it as Error display message.…
Details
LIMIT SEN
Check the high limit sensor and its wiring. The table classifies it as Error display message.…
Details
INLET SEN
Check the inlet sensor and its wiring. The table classifies it as Error display message.…
Details
GAS PRESS
Check PIM wiring. The table classifies it as Error display message.…
Details
IGNITION
Reset control, push and release RESET button. The table classifies it as Error display message.…
Details
LIMIT TRIP
Heater temperature tripped the high limit. The table classifies it as Error display message.…
Details
FLAME
False flame detected. Shut off gas supply, recycle power. The table classifies it as Error display message.…
Lockout
ID CARD
Identity card, check ID card and wiring. The table classifies it as Error display message.…
Details
IGN CTRL
Internal control fault. Reset power, replace control. The table classifies it as Error display message.…
Details
DELTA T
Temperature difference between the inlet and outlet exceeded the set point. Check water flow. The table classifies it as Error display messa…
Details
LOW 24VAC
Low 24 VAC power. Check power supply wiring and transformer. The table classifies it as Error display message.…
Details
BLOW SPEED
Blower speed out of range. Check blower wiring and blower. The table classifies it as Error display message.…
Details
FLOW ERROR
The unit is not detecting enough flow to allow ignition sequence to take place. The table classifies it as Error display message.…
Lockout
UNDER FLOW
The flow reading has drop under minimum requirements to keep the current operation point. The table classifies it as Error display message.…
Details
FLOW WARNING
Operation conditions do not match current flow reading. The table classifies it as Error display message.…
Details
Raypak XTherm condensing boilers 3005-4005 (error display items, I&O 241549)
OUTLET SEN
Check the outlet water sensor and its wiring. The table classifies it as Error display message.…
Details
LIMIT SEN
Check the high limit sensor and its wiring. The table classifies it as Error display message.…
Details
INLET SEN
Check the inlet sensor and its wiring. The table classifies it as Error display message.…
Details
GAS PRESS
Check PIM wiring. The table classifies it as Error display message.…
Details
IGNITION
Reset control, push and release RESET button. The table classifies it as Error display message.…
Details
LIMIT TRIP
Boiler temperature tripped the high limit. The table classifies it as Error display message.…
Details
FLAME
False flame detected. Shut off gas supply, recycle power. The table classifies it as Error display message.…
Lockout
ID CARD
Identity card, check ID card and wiring. The table classifies it as Error display message.…
Details
IGN CTRL
Internal control fault. Reset power, replace control. The table classifies it as Error display message.…
Details
DELTA T
Temperature difference between the inlet and outlet exceeded the set point. Check water flow. The table classifies it as Error display messa…
Details
LOW 24VAC
Low 24VAC power. Check power supply wiring and transformer. The table classifies it as Error display message.…
Details
BLOW SPEED
Blower speed out of range. Check blower wiring and blower. The table classifies it as Error display message.…
Details
Raypak XFIIRE condensing boilers (error display items, I&O 241941)
OUTLET SEN
Check the outlet water sensor and its wiring. The table classifies it as Error display message.…
Details
LIMIT SEN
Check the high-limit sensor and its wiring. The table classifies it as Error display message.…
Details
INLET SEN
Check the inlet sensor and its wiring. The table classifies it as Error display message.…
Details
GAS PRESS
Check PIM wiring. The table classifies it as Error display message.…
Details
IGNITION
Reset control, push and release RESET button. The table classifies it as Error display message.…
Details
LIMIT TRIP
Heater temperature tripped the high-limit. The table classifies it as Error display message.…
Details
FLAME
False flame detected. Shut off gas supply, recycle power. The table classifies it as Error display message.…
Lockout
ID CARD
Identity card, check ID card and wiring. The table classifies it as Error display message.…
Details
IGN CTRL
Internal control fault. Reset power, replace control. The table classifies it as Error display message.…
Details
DELTA T
Temperature difference between the inlet and outlet exceeded the setpoint. Check water flow. The table classifies it as Error display messag…
Details
LOW 24VAC
Low 24 VAC power. Check power supply wiring and transformer. The table classifies it as Error display message.…
Details
BLOW SPEED
Blower speed out of range. Check blower wiring and blower. The table classifies it as Error display message.…
Details
FLOW ERROR
The unit is not detecting enough flow to allow ignition sequence to take place. The table classifies it as Error display message.…
Lockout
UNDER FLOW
The flow reading has drop under minimum requirements to keep the current operation point. The table classifies it as Error display message.…
Details
FLOW WARNING
Operation conditions do not match current flow reading. The table classifies it as Error display message.…
Details
Raypak MVB Category I & III boilers 504A-2004A (error display items, I&O 241512)
OUTLET SEN
Check the outlet water sensor and its wiring. The table classifies it as Error display message.…
Details
LIMIT SEN
Check the high limit sensor and its wiring. The table classifies it as Error display message.…
Details
INLET SEN
Check the inlet sensor and its wiring. The table classifies it as Error display message.…
Details
GAS PRESS
Check PIM wiring. The table classifies it as Error display message.…
Details
IGNITION
Reset control, push and release RESET button. The table classifies it as Error display message.…
Details
LIMIT TRIP
Boiler temperature tripped the high limit. The table classifies it as Error display message.…
Details
FLAME
False flame detected. Shut off gas supply, recycle power. The table classifies it as Error display message.…
Lockout
ID CARD
Identity card, check ID card and wiring. The table classifies it as Error display message.…
Details
IGN CTRL
Internal control fault. Reset power, replace control. The table classifies it as Error display message.…
Details
DELTA T
Temperature difference between the inlet and outlet exceeded the setpoint. Check water flow. The table classifies it as Error display messag…
Details
LOW 24VAC
Low 24 VAC power. Check power supply wiring and transformer. The table classifies it as Error display message.…
Details
BLOW SPEED
Blower speed out of range. Check blower wiring and blower. The table classifies it as Error display message.…
Details
Raypak MVB Category IV boilers 503A-2003A (error display items, I&O 241511)
OUTLET SEN
Check the outlet water sensor and its wiring. The table classifies it as Error display message.…
Details
LIMIT SEN
Check the high limit sensor and its wiring. The table classifies it as Error display message.…
Details
INLET SEN
Check the inlet sensor and its wiring. The table classifies it as Error display message.…
Details
GAS PRESS
Check PIM wiring. The table classifies it as Error display message.…
Details
IGNITION
Reset control, push and release RESET button. The table classifies it as Error display message.…
Details
LIMIT TRIP
Boiler temperature tripped the high limit. The table classifies it as Error display message.…
Details
FLAME
False flame detected. Shut off gas supply, recycle power. The table classifies it as Error display message.…
Lockout
ID CARD
Identity card, check ID card and wiring. The table classifies it as Error display message.…
Details
IGN CTRL
Internal control fault. Reset power, replace control. The table classifies it as Error display message.…
Details
DELTA T
Temperature difference between the inlet and outlet exceeded the setpoint. Check water flow. The table classifies it as Error display messag…
Details
LOW 24VAC
Low 24 VAC power. Check power supply wiring and transformer. The table classifies it as Error display message.…
Details
BLOW SPEED
Blower speed out of range. Check blower wiring and blower. The table classifies it as Error display message.…
Details
Raypak MVB Category IV boilers 2503-4003 (error display items, I&O 241510)
OUTLET SEN
Check the outlet water sensor and its wiring. The table classifies it as Error display message.…
Details
LIMIT SEN
Check the high limit sensor and its wiring. The table classifies it as Error display message.…
Details
INLET SEN
Check the inlet sensor and its wiring. The table classifies it as Error display message.…
Details
GAS PRESS
Check PIM wiring. The table classifies it as Error display message.…
Details
IGNITION
Reset control, push and release RESET button. The table classifies it as Error display message.…
Details
LIMIT TRIP
Boiler temperature tripped the high limit. The table classifies it as Error display message.…
Details
FLAME
False flame detected. Shut off gas supply, recycle power. The table classifies it as Error display message.…
Lockout
ID CARD
Identity card, check ID card and wiring. The table classifies it as Error display message.…
Details
IGN CTRL
Internal control fault. Reset power, replace control. The table classifies it as Error display message.…
Details
DELTA T
Temperature difference between the inlet and outlet exceeded the set point. Check water flow. The table classifies it as Error display messa…
Details
LOW 24VAC
Low 24 VAC power. Check power supply wiring and transformer. The table classifies it as Error display message.…
Details
BLOW SPEED
Blower speed out of range. Check blower wiring and blower. The table classifies it as Error display message.…
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.