VII.Malfunctions and Maintenance
Malfunction
Possible reasons
Solutions
No display
of LED
1.out of power or poor
contact.
2. Damaged screen.
3. Burned blown fuse.
4. Error of circuit board.
1.Power on to good
contacts
2. Replace the screen.
3.Replace blown fuses.
4. Replace the circuit
board.
Out of
control
1. Power interference.
2. Surrounding interference.
3. Errors of procedure.
1. Power off.
2. Move the fan and
keep a certain space.
3. Replace the circuit
board.
No wind or
too slow
speed
1. The fan is stuck.
2. Filter screen is blocked.
3. Wind wheel is unfixed.
4.Errors of main control
panel.
1. Check the machine
and the fan .
2. Clean or replace the
filter screen.
3. Replace the wind
wheel.
4. Replace the main
control panel.
Motor out of
control
1.Button on the main
control panel is damaged.
2. The panel is damaged.
1. Replace the main
control panel.
2. Replace the panel.
Drain valve
leakage
1. Drain valve fracture.
1. Replace the drain
valve.