1. As leakage of the steam will damage the equipment. To prevent any hazard, steam generators, steam jet, parts and pipe line connections should be checked regularly.

2. Clean the electromagnetic valve, magnetizer and all the other sets in the pipe line regularly according to the local water quality and usage of the steam generator.

3. When operating, check the equipment to see whether it’s over heated, check the stability and corrosion of all the wire plugs.

4. Replace the heating elements: switch off the steam generator at the mains and remove the element access.
Label the wires connected to the heating elements which need to be replaced and plug out the wires. Screw the heating elements out.
Clear the scale in the water tank and screw in the heating elements after putting the rubber rings on them (air proof gasket should be pressed firmly without reversion).
Plug in the wires, make sure the heating elements are properly connected before putting the element access cover.

5. Replace the main board:
Switch off the steam generator at the mains and remove the U shape cover when the
generator has completely cooled down. Label the three wires which connect the upper part of the main board to the water level sensor and the source, drain pump, electromagnetic drain valve and water inlet electromagnetic valve in the bottom part of the main board.
Unplug these wires and remove the main board (be careful with yellow-green earth wire under the screws of the circuit board).
Install the main board back carefully.

6. Replace the sub-board:
Switch off the steam generator at the mains and remove the U shape cover when the
generator has completely cooled down.
Unplug all the wires on the sub-board. Label all the wires on the relay and remove the sub-board. Install the sub-board back carefully.

7. Replace the electromagnetic valve and drain pump:
Switch off the steam generator at the mains and disconnect the power and water supply. Remove the water inlet pipe, drain pipe and steam outlet pipe when the generator has completely cooled down. Tilt the equipment to take off the bottom board, and finally remove all pipes, wires and screws.

8. Replace the water level sensor:
Switch off the steam generator at the mains and remove the small cover on the equipment when the generator has
completely cooled down.
Special care should be taken to the plugs of the water level sensor corresponding to the blue wire and the two white wires respectively.
Take off all the wires, screw out the water level sensor, and screw in the new water level sensor until the bottom of the
plastic nut reaches the same height as the old one. Finally reconnect the blue wire and the two white wires (the blue wire must be plugged back to the right place).

Cut off the power supply before any maintenance.
Test the equipment after maintenance.

CUT OFF THE POWER SUPPLY BEFORE ANY MAINTENANCE.

TEST THE EQUIPMENT AFTER MAINTENANCE.