Gāzes Katlu Apkope offers gas boiler diagnostics, error code troubleshooting, and minor adjustments where needed, for houses and apartments in Rīga and within about 50 km — identifying the cause of the fault and restoring stable, efficient boiler operation. Diagnostics are often the first step before deciding whether a repair or further adjustment is needed.
Gas boiler diagnostics is the step we take when something seems off — the boiler shows an error code, doesn't run steadily, shuts off, or uses more gas than usual. During the visit, we read error codes from the display, assess combustion quality, check sensors and gas pressure, identify the cause, and, where possible, carry out minor adjustments to restore stable and efficient boiler operation.
Diagnostics includes interpreting error codes, combustion analysis, sensor checks, gas pressure checks, and any minor adjustments needed. It's the first step in figuring out what happened to the boiler and whether the issue can be resolved with an adjustment alone, or whether further action is needed.
It's important to distinguish: diagnostics identifies the problem and its cause. If it turns out a component is faulty and repair is needed, see our gas boiler repair page — diagnostics is still the first step in understanding exactly what needs to be done next. We schedule requests by prior appointment, so you know when the technician will arrive.
We read and interpret error codes from the boiler's display. This shows which part of the system to look at and whether the problem is easily resolved.
Using a combustion analyzer, we measure combustion quality (CO₂, O₂, CO levels, flue gas temperature) and, if needed, make adjustments so the boiler runs at its intended efficiency with low emissions.
We carry out gas pressure, burner signal, and sensor calibration adjustments to restore stable and safe boiler operation based on diagnostics findings.
We identify the cause of the problem and provide a clear report with recommendations for next steps — whether adjustments are enough, or a repair is needed.
Fill in the form on this page or contact us. If you know it, let us know the error code shown on the boiler and its brand.
We'll contact you to agree on a visit time. This is a scheduled diagnostics visit, not an emergency callout.
We read error codes, assess combustion quality, check sensors and gas pressure, and carry out any minor adjustments needed.
We provide a report on the boiler's condition and the cause. If a repair is needed, we'll explain the options and recommendations for next steps.
Fill in the form and our specialist will contact you shortly.

Scheduled boiler maintenance — inspection, cleaning, safety and performance checks, diagnostics and adjustments in one visit.
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Technical inspection and safety check — an assessment of your boiler's condition before the heating season.
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Boiler repair after diagnostics — fixing or replacing the faulty component to restore operation.
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