Error code
Tillskott ur Electric auxiliary heat temporarily disconnected
How it shows on the unit Flashing red alarm lamp while alarm is active
Applies to 2 models
What this means
Usually no error/no fault: the auxiliary heater has been temporarily disconnected to limit supply or hot-water temperature for safety. It can also indicate that the heat pump is at maximum output or that the permitted supply-temperature limit is set too low.
When to call a technician
This fault involves refrigerant, pressure, or electrical work that must be handled by a certified technician under EU F-gas rules. Do not attempt to open the refrigerant circuit, access mains wiring, or adjust pressure components yourself. Contact a qualified installer or servicer for this one.
See the official IVT manualA deep link to the manufacturer's own PDF for full technical detail. We link to manuals, we never host them.
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