Rinnai i-Series (previous generation) 110 — No Ignition (unit not Turning on)
110
No Ignition (Unit Not Turning On). • Ignition Error. • Check that the gas is turned on at the boiler, gas meter, and/or propane cylinder. • If the unit is installed in a propane system, ensure that gas is in the tank. • Bleed all air from the gas lines. • Check the ground wire for the PC Board. • Ensure the flame rod wire is connected. • Ensure the igniter is operational. • Ensure the venting is installed in accordance to this manual. • Check that the surface of the electrode and flame rod are clean. • Check gas solenoid valves for open or short circuits. • Verify gas orifice installed is correct for the gas system the unit is installed in. • Check flame rod voltage to ground during ignition. The table classifies it as Diagnostic Code.
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.
Applies to
This ignition fault code is displayed by the I-Series control (numeric diagnostic codes) on Previous-generation I-Series solo models (i060SN, i090SN, i120SN, i150SN), as documented in Rinnai I-Series Condensing Solo Boiler Installation and Operation Manual, doc 800000112 (hosted on the Rinnai Canada i060SN product page), Section 12.8 Diagnostic Codes (800000112). Codes can differ between controller generations, so always check the manual that matches your unit.
- Rinnai i-Series (previous generation)
- Rinnai i060CN
- Rinnai i090CN
- Rinnai i120CN
- Rinnai i060SN
- Rinnai i090SN
- Rinnai i120SN
- Rinnai i150SN
Controller: I-Series control (numeric diagnostic codes). Source manual: 800000112.
Why a code is not a diagnosis
An ignition code says the burner did not prove a flame when it should have; it does not say why. Gas supply, ignition components, grounding, venting and the control module each need testing on site.
Safe things to observe
- If you smell gas, stop, go outside and call your gas utility's emergency line or 911 before anything else.
- Note the exact code and what the appliance was doing when it appeared.
- Check whether other gas appliances in the building are working.
Do not
- Do not keep resetting to force more ignition attempts.
- Do not open the gas valve, touch ignition components or bypass any safety device.
How professional service helps
- A licensed gas technician tests gas supply pressure and the shut-off state.
- The ignition probe, lead, gap and grounding are inspected against the manufacturer's specification.
- Combustion and safety devices are verified with an analyser and the manufacturer's procedure after any repair.
Where ROMA provides on-site service
On-site service is currently offered in Greater Vancouver, BC, including Vancouver, Burnaby, Richmond, Surrey, Coquitlam, North Vancouver, West Vancouver, New Westminster, Port Coquitlam, Port Moody, Delta, Langley, Maple Ridge, Abbotsford, Chilliwack, White Rock, Pitt Meadows, Tsawwassen, Anmore, Lions Bay, Belcarra, Bowen Island, Mission. Everything else on this site is reference information you can use anywhere in Canada.
Parts and service
Parts commonly involved
These parts appear in the documented text for this alert. A code reports a condition, not a failed part — a technician confirms the cause by testing before anything is replaced.
Hot-surface igniter
A hot-surface igniter is a ceramic element that glows white-hot to light the burner in a gas boiler, and on many designs it doubles as the flame…
What a technician checks →Ignition electrode
The ignition electrode creates the spark that lights the burner in a gas boiler, and on many models it also senses the flame once it is burning.
What a technician checks →Flame sensor (flame rod)
The flame sensor is the small rod that proves a gas boiler's burner is actually lit before the control will keep the gas valve open.
What a technician checks →Gas orifice
A gas orifice is the precisely sized opening that meters gas into each burner, and its size must match the fuel and altitude the boiler was set up…
What a technician checks →
Service for this alert
- Gas Boiler Repair
Licensed gas technicians from ROMA Heating & Cooling diagnose and repair residential and light-commercial gas boilers across…
- Emergency Boiler Repair
Priority gas boiler repair for homes and buildings in Greater Vancouver with no heat, no hot water, a locked-out boiler or a leak.
Every boiler part explained — what it does, how it fails and what a technician checks.
Documented for Rinnai i-Series (previous generation).
Frequently asked questions
Does this code mean I have a gas leak?
Not by itself. If you smell gas, stop, leave the building and call your gas utility's emergency line or 911 from outside before anything else. Otherwise the code points to a fault a technician confirms on site.
Can I clear this code myself?
Clearing a code without fixing its cause usually just brings it back. Note the code, check the safe items on this page, then call a licensed technician. If your appliance manual describes a user reset for this exact code and it stays away, no call may be needed.
Boiler locked out? Call with the alert text ready.
The brand, model and this alert are passed along when you request service online, so the technician arrives prepared.
On-site service in Greater Vancouver, BC. ROMA lists “Open 7 days” on its site; call to confirm same-day availability.
Sources and verification
- Rinnai I-Series Condensing Solo Boiler Installation and Operation Manual, doc 800000112 (hosted on the Rinnai Canada i060SN product page), Section 12.8 Diagnostic Codes · 800000112 · accessed September 9, 2026
Facts checked September 9, 2026. Last updated September 9, 2026. Technical reviewer: not yet assigned.