IBC Technologies · Error codes
IBC SFT-1 n120 — Maintenance recommended (notification)
n120
The controller is recommending maintenance based on hours of use. The unit continues to operate normally.
Applies to
This notification is shown by the numeric-display touch panel control on Superflow SFT-1 tankless water heaters (SFT 199-1), as documented in IBC Installation & Operating Instructions — SFT 199-1 tankless water heater, doc 84160406, sections 5.3.1–5.3.3.
Controller: numeric-display touch panel control. Source manual: 84160406 (2024-09).
Why a code is not a diagnosis
The notification is based on operating hours, not on a measured fault. Actual component condition still needs the service visit the notification is prompting.
Safe things to observe
- Book an annual-style service visit; the manufacturer's maintenance interval has been reached.
Do not
- Do not reset the maintenance timer without the maintenance actually being performed.
How professional service helps
- A technician performs the manufacturer's scheduled maintenance and resets the maintenance timer as part of the service.
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.
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
- IBC Installation & Operating Instructions — SFT 199-1 tankless water heater, doc 84160406, sections 5.3.1–5.3.3 · 84160406 · accessed September 7, 2026
Facts checked September 7, 2026. Last updated September 7, 2026. Technical reviewer: not yet assigned.