ZZKD is a professional manufacturer and exporter of laboratory equipments.We supply rotary evaporator and matching equipment,such as:circulating water vacuum pump,low temperature cooling liquid circulating pump.
1.The solution of motor non-rotation.
(1)re-insert the plug and connect the broken wire.
(2)update the fuse or confirm that there is no abnormal power supply.
(3)update the circuit or electric control box.
2.The solution of water bath without heating.
(1)Test power supply 220V.
(2)Replace the heating ring, replace the solid state relay or relay plate.
(3)Change the temperature controller.
(4)Test the connection of the probe or update the probe.
3.The solution of bath temperature is too high
(1)Change the temperature controller
(2)Replace the solid state relay or relay board.
(3)Change probe or temperature controller.