Checking the condensation water seal
The condensation hose from NIBE FLM should be shaped into a water
seal. The reverse of F1245/F1255 has a groove in the insulation for the
condensation hose; other compatible heat pumps do not have this groove.
Check that there is water in the water seal. If it is empty or has a very
low water level so that it "gurgles" water can be topped up.
After a period of operation dust and other particles can clog the water
seal, consequently, you should check this regularly and clean when ne-
cessary.
NIBE FLMChapter 2 | The heating installation – the heart of the house12