Is my Combi heater with grey cover compatible with the Truma iNet System?
If you have a grey Combi heater in your vehicle, the PCB must be replaced and the digital CP plus iNet ready control panel must be installed. The best way is to check the version number which is located beneath the cover of the Combi electronics connections. If the version number is lower than V5.0, the PCB must be replaced.
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If you have a question about an appliance, always have information about the appliance type, year of manufacture and factory number at hand. You'll find this on the type plate on the appliance.