Error code
Rengör filter Clean filter reminder
How it shows on the unit Flashing red alarm lamp while alarm is active
Applies to 2 models
IVT 490, IVT 495 TWIN
What this means
The unit reminds you, approximately every two months, to clean the air filter. This is a maintenance reminder, not a control fault.
What you can check yourself
- Clean the air filter with lukewarm water and mild detergent.
- Press the right-hand button to acknowledge the reminder after cleaning.
Still not resolved? Contact a qualified installer or servicer.
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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