Troubleshooting; Faults And Fixes - OSO HOTWATER Saga Xpress SX 150 Instructions De Montage

6. TROUBLESHOOTING

6.1 Faults and fixes

If problems arise when the product is in use,
check for possible faults and fixes in the table. If
the problem is not shown in the troubleshoot-
Problem
There is leakage/drip-
ping from the safety
valve/there is often
water on the floor by the
cylinder in the morning
No hot water
Not enough hot water
Not high enough tem-
perature
Fuse/earth breaker trips
repeatedly
Long time before the
water reaches the tap
Knocking in the pipes
when the hot tap is closed
14
TROUBLESHOOTING
Possible cause of fault
Pressure reduction valve, water me-
ter 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 dirty
Leak from heating element.
Power supply interrupted.
Thermostat has cut out.
Heating element is defective.
Leak in hot water pipe
High consumption in the home.
The mixer valve is set for low tem-
peratures.
The thermostat is set for low tem-
peratures.
Change from cold to hot water in
taps.
Possible fault in the heater's electri-
cal system.
Long stretch of pipe from water
heater to tap.
Large pressure increase when the
tap is closed quickly.
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.
Possible solution
Fit AX expansion vessel with absorbs expan-
sion during heating, and fit pressure reduc-
tion valve for stable water pressure inside
the home. The pressure reduction valve is
adjusted in according to the pressure in the
expansion vessel. Contact auth. installer.
Try to flush with water through the safe-
ty valve. Open valve approx. 1 minute.
See section 5.2. If the valve still leaks, it
must be replaced. Contact auth. installer.
Verify as follows: a) cut the electric sup-
ply, b) unscrew the cover, c) visually check
whether there is a leak from the heating
element. If so, replace the gasket/heating
element. Contact auth. installer.
Verify that the fuse is on / the plug is
plugged in to the wall contact / the earth
breaker has not tripped.
Press the 'RESET' button on the safety
thermostat; see 'User guide'.
Replace heating element. Contact auth.
installer.
Verify as follows: a) close the mixer valve,
b) wait 2-3 hours, c) feel the mixer valve
to see whether it is hot. If so, there is a
leak in the hot water pipe or elsewhere.
Contact auth. installer.
Raise the temperature on the thermostat
to 85°C; see 'User guide'.
Switch to a larger OSO water heater.
Contact auth. installer.
Raise the temperature on the mixer
valve; see 'User guide'.
Raise the temperature on the thermostat
to 85°C; see 'User guide'.
Contact auth. installer.
Verify as follows: a) cut the electric supply,
b) unscrew the cover, c) visually check the
junction box for any problems. If so, con-
tact auth. installer to check. Fit the cover.
Fit circulation wire or heating cable to
HW pipe. Or fit an auxiliary heater by
the tap. Contact auth. installer.
Completely normal. Fit AX expansion ves-
sel if troublesome. Contact auth. installer.