Reason:.

(1) Blower is not working.

(2) The blower rotation direction is reversed.

(3) Duct hose is deformed, damaged or disconnected.

(4) The distance between the shaker and blower is too long.

(5) The temperature in the room is too high.

(6) The air supply or exhaust port of the shaker is blocked.

(7) Excitation coil is clogged with dust.

Solution.

(1) Check that the blower is working.

(2) Check if the blower is rotating in the correct direction (for direction of rotation, check the arrow near the blower motor).

(3) Check if the duct hose is not deformed, torn or disconnected.

(4) Check whether the length of the duct hose is within the allowable specification (5 m) of the IMV.

(5) Check whether the temperature inside the room is below 40°C.

(6) Check whether the air supply and exhaust ports of the shaker are free from blockages.

　If there is a blockage, remove and clean the blockage.

(7) The shaker needs to be overhauled.