Error code
Hot gas temperature alarm Hot-gas overtemperature
Applies to 3 models
RXC35, RXC50, RXC65
What this means
Hot-gas temperature exceeds 120 °C, commonly because of insufficient refrigerant or an expansion valve that does not open correctly.
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 ComfortZone manualA deep link to the manufacturer's own PDF for full technical detail. We link to manuals, we never host them.