Fault	Possible causes	Approach
The machine has no power.	The power switch is not turned on	Turn on the machine power switch
	The insurance tube burned out	Check the machine to make sure the machine is not short-circuited and replace the assurance tube of same specifications
	The leakage protection switch is OFF	Check the machine to ensure that no leakage occurs and turn on the leakage protection switch
	The power plug wire is damaged	Look for professionals to replace power plugs
	220V power is not connected	Check power supply lines to make 220V power supply normally connected
Not connected to the Internet	No Signal	1. Power off and restart the machine
		2. Check if the antenna connection is installed correctly and the antenna extension cable is intact.
		3. Confirm that whether the antenna is placed on top of the machine.
		4. Replace the flow card of different operators (TELECOM is not supported for the time being)
		5. Change the position of the machine (There may be no network signal in that area)
	Excessive traffic or downtime of card	Recharge the flow card
	Flow card locked	Contact the background to unlock, the flow card can only be bound to the specified machine, otherwise the card may be locked
Lighting strip does not work	Lighting strip not turned on	Turn on the lighting strip
	Loose contact of lighting strip	Check the sockets of the lighting strip and re-plug the sockets
	The light strip is damaged	Contact with after-sales, change the lighting strip
Unable to choose cargo lane	Cargo lane failure not cleared up	Clear up cargo lane failures
Delivery failure	The cloud background is inconsistent with the product code set in the machine.	Match the cloud background and the machine's product encoding settings or enable background synchronization
	Product size does not match the cargo lane	Replacement of goods matching the cargo lane or adjustment of the cargo lane to the appropriate size of the goods
	Cargo lane capacity setting error	Clear the cargo lane failures and reset the correct cargo lane capacity
The machine does not refrigerate	Refrigeration not turned on	Turn on the refrigeration (see the page of "Set Temperature Control Mode" in the Manual for details)
The machine does not refrigerate	Long-term use of the machine may lead to	Contact with after-sales, add refrigerant
Failure to reach the preset temperature	Too much dust in condenser	Clean the condenser with a non-metallic brush (pay attention to regular maintenance and cleaning)
	Not enough time to cool the goods	Pre-cooling goods in advance when they are popular
	High ambient temperature due to direct sunlight or other heat sources around the machine	Changing the placement environment of the machine
	Poor ventilation of the machine	Guarantee the clearance of 20 cm or above from the rear and left and right sides of the machine, and ensure the good ventilation of the machine.

Fault	Possible Causes	Approach
Not accept coins	The power supply of the coin system is abnormal	1. Check whether the MDB line is in good contact;
	The power supply of the coin system is abnormal	2. Check whether there is DC24V access to coin changer and bill validator.
	Software disabled	1. The enables of coin type is not on, turn on the corresponding enables;
	Software disabled	2. The enables of bill type is not on, turn on the corresponding enables;
	Be subjected to high frequency interference	Remove high frequency interference (e.g. antenna, etc.).
	Installation of coin system is abnormal	1. The coin changer is not hanging correctly, reinstall the coin changer;
	Installation of coin system is abnormal	2. The coin return button of the coin changer can not be pressed, which leads to no recovery. Correct the coin return press plate to ensure that the coin return button can recover normally.
	Dirty coin passage	Clean the passage of the coin system.
	No coin recycle can be detected	If the trouble can not be eliminated by reinstall the coin recycle, please return the machine to the factory for repair.
	Do not accept large nomination notes	1. Set the limit value of put-in amount too low, reset the limit of put in amount;
	Do not accept large nomination notes	2. Set the acceptable coin value is too high, the user may empty the coin exchange area after purchasing the goods, resulting in the follow up users can not get the change.
	Failure of bill jammed	Clear up the jammed bill.
No change	Abnormal power supply	1. Check whether the MDB line is in good contact;
	Abnormal power supply	2. Check whether the coin system has DC24V access.
	Software disabled	1. The coin change switch is not turned on.
	Software disabled	2. Bill temporary storage switch is not on.
	There's no money in the coin recycle	Prefill coins.
	No change due to the low exchange setting is wrong	When the value of put-in bill is too large, the setting of no change low value limit is too low, it is necessary to reset no change low value limit and supplement coins in the coin recycle.
	No change for bills	Empty the bill change area and refill the coins.
	The coin changer has a problem of bill jam (the indicator light on the coin returning slot flashes)	1. Check whether coins are erected in the coin recycle, and if they are erected, reload the coins.
		2. Check whether the surface of the coin is deformed or foreign body, change the coins or remove foreign body;
		3. Check whether the coin recycle is detached. If it is detached, please reinstall the coin recycle.
		4. Check that whether the coin return claw is damaged or not. If it is damaged, please return to the factory for repair.
		5. The base of the coin changer is not in place. Re-install the coin changer base.

Leakage Protection