Fault 1: The thermostat does not turn on (does not light up)
Analyze the causes
1. Wrong wiring
2. The voltage of the input terminal is not enough or the input terminal is damaged by empty opening and leakage
3. Whether the cable between the panel and the power board is broken or plugged incorrectly
4. The load is short-circuited or open-circuited, and the probe line is leakage
5. Other reasons
Solution(s):
1. Check whether the thermostat wiring is correct when the power is off (the middle AC220V corresponds to the input neutral live wire)
2. Check whether there is a 220V voltage between L and N at the input end of the thermostat (note that it is not enough to measure the power of the live wire with an electric pen, but also make sure that the neutral line is powered)
3. Open the thermostat panel, check whether the cable is disconnected, and check whether the cable is plugged in backwards or obliquely
4. Remove the output load line and remove the outer probe line,
5. After completing the above 1-4 steps, power on again and observe whether the thermostat is on, if not, the thermostat needs to be returned to the factory for analysis;
Fault 2: The thermostat flashes (it is powered on normally, and the relay is powered off and restarted after it is engaged)
Analyze the causes
1. Wrong wiring
2. The input terminal is not enough to open and leak and protect the belt load
3. The load is short-circuited or broken, and the probe line is leakage
4. Other reasons
Solution(s):
1. Check whether the thermostat wiring is correct when the power is off (the middle AC220V corresponds to the input neutral live wire)
2. Replace the input line
3. Remove the output load line and remove the outer probe line,
4. After completing the above 1-3 steps, power on again and observe whether the thermostat is bright, if not, the thermostat needs to be returned to the factory for analysis;
Fault 3: The thermostat is missing, the buttons are not easy to use, and the backlight is bright and not displayed
Analyze the causes
1. The single-chip microcomputer crashes
2. Other issues
Solution(s):
1. Enter the background to restore the factory settings in the shutdown state, if there is a password, you need to crack the password first and then restore the factory settings
2. Other problems need to be returned to the factory for analysis;
Fault 4: The thermostat is displayed normally, but it is not heated
Solution(s):
1. Remove the load line, restore the factory settings, turn off the relay in the background of the thermostat, pay attention to whether there is a relay action, if there is no action, return to the factory for analysis, if there is an action, enter the next step;
2. After the temperature is set to be greater than (measurement temperature + tolerance temperature), whether the thermostat has a heating mark (if there is a next step, if there is no return to the factory for analysis), measure whether there is a voltage between the zero live wire at the output end of the thermostat, if there is a voltage, it is judged that the front end of the thermostat is empty and loaded, or the rear end is loaded; If there is no voltage, it needs to be returned to the factory for analysis;
Fault 5: The thermostat is locked
Solution(s):
1. No password, press and hold the power button to unlock
2. If you forget the password, you need to press the setting key on the password page, and provide the 6-digit prompt password to the manufacturer, and the manufacturer will feedback the password;
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