Title: 315.022 OSO-NANO-N-MANUAL-NO-SE-FI-EN-146007-05.pdf
ing table or you are unsure what is wrong, con- tact the installer (see type plate on the product) or OSO Hotwater AS - see section 7.2.TROUBLESHOOTINGProblemPossible cause of faultPossible solutionThere is leakage/dripping from the safety valve/ there is often water on the floor by the cylinder in the morningPressure reduction valve, water meter or blocked non-return valve on the water intake.Water pressure into the home is too high.The safety valve is worn or there are particles stuck between the mem- brane and the valve seat because the water is dirtyFit AX expansion vessel with absorbs ex- pansion during heating, and fit pressure reduction valve for stable water pressure inside the home. The pressure reduction valve is adjusted in according to the pres- sure in the expansion vessel. Contact auth. installer.Try to flush with water through the safety valve. Open valve for approx. 1 minute. See section 5.2. If the valve still leaks, it must be replaced. Contact auth. installer.