Skip to content
Boilers.caby ROMA Heating & Cooling

Tool · Error-code finder

Find the right error-code scope for the equipment

A code number is only meaningful against the controller and manual it came from. Pick the brand, the series and the documented scope, and the tool opens that scope's index — where the codes, their documented meanings and the manual they come from are listed.

Equipment picker

Only brands in the Boilers.ca catalogue are listed. A brand shown without codes has none documented yet — the tool will say so.

Scopes are grouped the way the manufacturer documents them — by series, controller and manual version.

Have a code or an alert text?

Free-text codes are routed to the site search rather than matched here — the same code number can mean different things on different controllers, so the result shows the exact scope and manual behind each match.

How this works

The registry decides the scope — nothing is guessed

7510 documented codes across 33 brands are published on this site, each tied to the series, controller and manual the manufacturer documents. The finder routes to those records; it never invents a meaning or a code.

01

One record, one page

Every code is a published record with a documented meaning, applicability, safe observations, do-not steps and its own manual citation. The finder links to the scope index, not to a summary.

02

Scopes exist because numbers repeat

The same code can mean different things on different controllers or generations. That is why the picker is brand → series → scope: the equipment decides which meaning applies.

03

Free text goes to search

A code the registry does not hold, or an alert message rather than a number, is routed to the site search, which shows every match with its scope — or none, honestly.

Brands with documented error codes in the registry, checked 2026-09-09.
BrandDocumented codesDocumented scopesIndex
A. O. Smith271Open index
AERCO (Watts)672Open index
Baxi862Open index
Bosch Thermotechnology4019Open index
Bradford White271Open index
Bryant361Open index
Burnham844Open index
Carrier361Open index
Crown Boiler Co.1807Open index
De Dietrich181Open index
Dunkirk Boilers1744Open index
HTP29110Open index
IBC Technologies2709Open index
Ideal Heating1443Open index
Laars Heating Systems2033Open index
Lennox201Open index
Lochinvar1525Open index
Navien1805Open index
New Yorker Boiler932Open index
NTI Boilers248612Open index
Patterson-Kelley4881Open index
Peerless Boilers1183Open index
Pennco342Open index
Raypak937Open index
RBI761Open index
Rinnai2047Open index
Slant/Fin1846Open index
Takagi824Open index
Triangle Tube2065Open index
U.S. Boiler Company733Open index
Utica Boilers1284Open index
Viessmann5786Open index
Weil-McLain2719Open index

Brands in the catalogue without documented codes are listed in the picker and reported as having none — that is a real answer, not a gap to fill with a guess. The error-codes hub lists every brand entry.

Tools and your service

A code is a starting point, not a diagnosis

The documented meaning tells a technician what the control detected. What to do about it — and whether the boiler is safe to keep running — is decided on site.

  • Have the model and the exact display text ready; the scope depends on the generation.
  • Safety-related codes — gas, combustion, CO — are treated as emergencies, not as DIY reading.
  • A repair starts with testing against the manufacturer's procedure, not parts-swapping.
Book a repairBoiler diagnosticsAll error codes

Sources and verification

Facts checked September 9, 2026. Last updated September 9, 2026. Technical reviewer: not yet assigned.

Code not in the registry?

Call 778-909-5731 with the model and the exact text on the display. ROMA confirms the equipment on site and works from the manufacturer's documentation for that generation.

On-site service in Greater Vancouver, BC. ROMA lists “Open 7 days” on its site; call to confirm same-day availability.

Call 778-909-5731Request service
CallEmailEstimate