switch light is not on

• make sure the power plug is no loose

• check the fuse to make sure whether it have fusing

• replace the switch

• ensure that the connect pipe not fall off

• circle board fault

• vibrating diaphragm fault

• ‍adjust the control knob

• clean the air filter

• ensure that the connect pipe not fall off

• check the interior of air pump

• there are some holes on the surface of air mattress

        (the details see instruction)

• put the air mattress according to the direction

• ‍micromotor fault

• air mattress leak