The combi boiler (combi) is arguably the most comfortable heating technology today. When this technology fails, especially during winter months, it can easily turn our lives upside down. So, under what conditions does a combi boiler malfunction, and what precautions can be taken to prevent these failures?

Let’s examine combi boiler malfunctions under several headings:

• The combi boiler is not igniting.

First, we must check the natural gas valves to ensure gas is being supplied. If there is no gas, there is no fuel for the ignition to light. If the gas was turned off, you must reset the combi after opening the valve. If the boiler still does not ignite after resetting, there may be a fault in the motherboard (mainboard), the ignition electrode, or the gas-related systems. In this case, you should contact technical service.

• There is no hot water.

In this situation, there may be a malfunction in the combi’s hot water sensor or the wiring. Again, it is necessary to consult technical service.

• The combi does not heat the house even at the highest setting.

There could be several reasons for this: First, your combi might have a smaller capacity than required, your radiators might be undersized for the space, or there may be air trapped in the radiators. Another common issue is that due to lack of maintenance, the circulation filter becomes extremely dirty, causing the pump to struggle by circulating sludge-like water instead of clean water.

As Trimbox, with our new generation surge arresters and surge suppressors, we prevent the electronic control board (motherboard) of your combi from burning out due to electrical fluctuations or high voltage. This prevents you from being left in the cold—especially during winter months when part supply times can reach up to 6 weeks. Furthermore, when you use Trimbox, you protect all electrical and electronic devices in your home against overvoltages, including lightning strikes and transformer explosions, and eliminate the resulting fire risks.

Simple precautions sometimes save lives. The best investment we can make for our family, our business, and our environment is protective measures. With Trimbox and GNDSeries, you can be protected from electricity-related damages and electrical contact fires caused by them.

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