Sinotimer TM630S is a digital programmable 7-day weekly timer switch used to automate electrical equipment like streetlights, water heaters, and industrial appliances. It supports up to 28 ON/OFF daily programs with a high-capacity 30A resistive load pic-control Key Controls & Buttons Clock (Circle Icon): Hold this to adjust current time/day. P (Timer): Enter the programming menu for ON/OFF cycles. D+ / H+ / M+ / S+: Adjust Day, Hour, Minute, and Second respectively. C/R (Cancel/Recall): Used to clear program settings or unlock the keypad Switches between (force on), (force off), and (program control). Step-by-Step Programming Guide 1. Unlock the Keypad Before making any changes, you must unlock the device. C/R button 4 times
| Issue | Likely Cause (per manual) | Solution | |-------|----------------------------|----------| | Timer not switching | ON/AUTO/OFF set to ON or OFF | Move to AUTO | | Settings lost after power cut | Backup battery depleted | Leave device powered for 24h to recharge | | Display blank but device powered | Internal fuse blown | Replace unit (not user-serviceable) | | Programs don’t run | TIMER button not engaged | Press TIMER until clock icon appears | sinotimer tm630s manual