Error code
Filterbyte larm Air-filter replacement or cleaning alarm
Applies to 6 models
RX35, RX50, RX65, RXL35, RXL50, RXL65
What this means
The air filter needs cleaning or replacement.
What you can check yourself
- Switch the heat pump off at its main switch, clean the filter with a vacuum cleaner at least every 3 months or replace it annually, then reset the alarm and restart the unit.
Still not resolved? Contact a qualified installer or servicer.
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.
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