Helo HNS T1 Produkthandbuch Seite 53

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User and installation manual HNS-T1
TEST 1.
Checking chalk deposits in the water tank.
Open the top lock nut in the steam generator. Lower a torch bulb that is connected to a battery with wires into the
opening and light up the water tank's inside. If there is more than 3 cm chalk on the bottom, the steam generator has
not been serviced and the chalk has not been removed according to the instructions.
It is also possible that the flushing and rinsing automation is not working. Check that the steam generator power has
not been switched off after bathing with a switch that may fitted in the supply line. You can switch the power off from
this switch only 80 minutes after the control panel has switched the power off.
Check the automatic flushing function by setting a bucket with a volume of about 12 litres under the downpipe. Start
the steam generator for about 15 minutes. Switch off the steam generator exactly the same way you normally do
after bathing. Wait at least 80 minutes and check if the bucket is filled with water. If it is not filled, there is a problem
with the steam generator's electric connections or the power supply has been switched off on the wire from electrical
cabinet directly to steam generator. It is also possible that the exhaust valve is blocked or the circuit board is faulty.
TEST 2.
Checking the thermostat sensor.
Wet a small towel with water and hang it on the sensor. If the steam generator starts producing steam within 20
minutes, the sensor works. However, it is placed in a wrong place or the temperature setting is too low. If the steam
production does not start, use the troubleshooting chart to find the fault.
TEST 3.
Checking the electromagnetic valve.
Stop the steam generator from the control panel. If water still flows from the steam nozzles 10 minutes after the
power has been switched off from the control panel, there is dirt in the electromagnetic valve. Remove the
electromagnetic valve and clean it.
If the water flow stops within 10 minutes after the power has been switched off from the control panel, the fault is in
the electrics (faulty connection or circuit board). It is also possible that too much chalk has accumulated in the water
tank. See test 1.
TEST 4.
Checking the steam pipe using the safety valve or the overheating protector.
Remove the steam pipe from the steam generator. Start the generator and let it run for about one hour. If the safety
valve or the overheating protector does not trip during the test, there is a block in the steam pipe that prevents the
steam flow. Follow the instructions in the troubleshooting chart.
The product's warranty will be void if the steam generator has been incorrectly installed or it has been used
in a manner other than described in the user manual.
The warranty also expressly excludes operational faults if they are caused by hard water i.e. water with high
levels of chalk, or otherwise impure water.
The steam generator must be maintained as described in the user manual.