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| | Likely Cause | Solution | | :--- | :--- | :--- | | Display is blank | Internal battery fully discharged after a power outage. | Connect the timer to a power source for several hours to recharge the battery. If it doesn't work, try the "jump-start" reset method described earlier. | | Timer not switching load ON/OFF | Incorrect control mode. Malfunctioning relay. | Check if the timer is set to "AUTO ON" or "AUTO OFF", not "MANUAL ON" or "OFF". Listen for an audible click when it switches; if you don't hear one, the internal relay may be defective. | | Schedules are erratic | Corrupted program data due to a power surge. | Perform a factory reset by pressing the "Reset" button. Reprogram your schedules. | | Device feels hot | Load exceeds the 30A/5000W capacity. Poor ventilation. | Disconnect the load immediately. Double-check your connected devices' power draw is within limits. Ensure the timer has adequate airflow. | sinotimer tm-630s manual
Enters the programming mode and cycles through the 16 ON/OFF settings. D+ (Day): Sets the day or combination of days of the week. H+ (Hour): Adjusts the hour setting. M+ (Minute): Adjusts the minute setting. : | | Likely Cause | Solution |
Minimum interval of 1 second , scalable up to 168 hours (7 days). | | Timer not switching load ON/OFF | Incorrect control mode
Understanding the control panel makes programming effortless: