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The F97 alert points to overheating of the compressor in the outdoor unit and requires a careful technical inspection.
The F98 indicates protection due to abnormal consumption and poor dissipation. This is how it is interpreted and what to check with judgment.
The H26 warning indicates an ionizer fault: common causes, useful checks, and when to stop.
The H99 code on Panasonic points to an indoor freeze protection and requires checking airflow, ice, and sensors.
The boiler starts but does not produce heat: pressure, circulation, and draft may be behind the fault.
Smoke in the air, poorly closed doors, and irregular combustion: this is how this fault is diagnosed and corrected.
The ignition failure in Cointra boilers usually points to gas, the electrode, or the valve. Here’s how to interpret it and what to check.
The boiler locks out due to overheating: real cause, what to check, and how to act before calling the technician.
Realistic price ranges, common surcharges, and signs to help decide whether to repair or replace a household appliance.
Code A05 shuts down the boiler for safety and points to the fan. These are its most likely causes.
The boiler locks out on startup due to lack of flame: common causes, what to check, and when to intervene.
The boiler is protected by an abnormal flue gas temperature. These are the real causes and how to act.