After the timer fails, you can remove the timer from the control seat, unscrew the timer cover fixing screw, and remove the upper cover to observe. Tighten the timer spring and carefully observe the operation of the cam and gear mechanism and the closing and opening of the contacts. The causes and troubleshooting methods are generally the following.
(1) When the spring is broken or the spring is broken, the spring can be reinstalled or the spring can be replaced. Note:
The same specifications should be used for replacement.
(2) The lock is blocked due to damage to the gear, poor gear meshing, or damage or looseness of the cam assembly. If the part is damaged, it should be replaced. For other reasons, the gears and cam assemblies can be removed, the dirt removed, and reassembled. If the micro motor is damaged in the micro motor driven timer, the motor needs to be replaced.
(3) The contact is fired. Due to the frequent opening and closing of the contacts, the contact surface ablation and the deformation of the reeds cause the contact pressure to drop, thereby causing a sparking phenomenon. The method of elimination is as follows: first scrub the contacts with alcohol, then lightly sand them with fine sandpaper, and then adjust the contact springs with tweezers to ensure good contact and break, but the best way is to replace the contact springs. sheet.
(4) If it is wet or influent, if the timer is covered with a crack or a water droplet timer, the accumulated dew and water droplets should be wiped dry to dry, and the cracked upper cover should be repaired or replaced.
The structure of the fixed timer is more delicate. If you encounter other problems that are difficult to solve, you can directly purchase the same type of timer and replace it.