Ice Maker working procedure.

Before start the Ice Maker, below items should be confirmed.

A. Corresponding power supply and grounded socket.

B. Clean water supply with not lower than 0.2Mpa pressure.

C. Water temperature is between 41℉to 89℉

D. Environment temperature is between 50℉to 100℉

E. Unit is leveled and stable.

In addition, when environment temperature is lower than 27℉ or condenser temperature higher

than 158℉, the unit will be in self-protection status and stop working

.

Once Ice maker is completely installed, below procedures show how it works.

Step.1 Press Ice-Making button to make ice. Water from water in-let flows into water tank. At same

time, compressor and condenser fan start working. Water flow is timed by controller. Every day, first

ice block is recommended to be discarded to make sure making qualified and clean ice.

Step.2 Water pump starts and sucks water to sprinkler and distribute equally to the ice mold.

Refrigerant circles and makes ice mold freeze water to be ice.

Step.3 After water in the water tank forms ice on ice mode, water level in tank phase to down and

then lower than float switch. Float switch control water in-let open and the timer program start again

and water flow in water tank then close float switch. This circle continues until ice thickness

achieves design setting.

Step.4 when float switch starts once more, Ice harvest light on display panel turn on and ice harvest

starts, Water inlet unavailable and Hot gas valve guide hot gas to ice mold and thaw the ice then

the ice apart from ice mold and drop to ice bin. When ice dropping, it touch the ice slideway which

trigger magnetism switch. Magnetism switch control the new round ice making procedure.

Step.5 When ice block drops but be stopped on slideway, cannot trigger the magnetism switch.

Controller regards this status as Ice-full, and instructs unit to standby, standby light is on.

Compressor, water pump and fan stop. Drain pump stops after drain off the water in water tank.

ISSUE REASON SOLUTION

NO ICE FORMING

No electric Check socket, plug ,cord and protector

Ventilation shield coverd Remove covering

Environment temperature exceed Make temperature available

Lack of water Check water inlet

ALOUD NOISE

Unit installing unstable Level the unit

Unstable floor Move to right place

Fan loose or fan blade blocked Fix fan and blade

Tubes touch each other Make tubes apart

LACK OF WATER

(Ice-Making, Ice-Harvest and Ice-Full

lights on at same time)

Tube jam Un-choke

Faucet closed or low water pressure Check faucet and water pressure

CHARGED SHELL Ungrounded socket Use grounded socket

Grounding screw loose Fix grounding line

BAD ICE CUBE Water sprinkler jam Clean sprinkler

Dirt on ice mold Clean ice mold

GURGLE Refrigerant running Normal, no need

HOT CONDENSER AND COMPRESSOR System running Normal, no need

The ice maker common

troubleshooting

Common faults project

• 1、System unit fault

• 2、Visible ice cube fault

• 3、Item for repair

• 4、Potential quality improvement projects

nElectrical Parts Checking and Reset the ProgramPress simultaneously “ICE” and “CLEAN”, and power it on until it beep 3seconds later. During pressing button, all LED indicator lights flash. Then the unitbegins test procedure.nSensor test:lIce Making light turn green. If the condenser sensor works it lit, or else it flash;lIce Harvest light turn yellow. If the evaporator sensor works it lit, or else it flash;lBin Full light turn red. If the ice full switch works it lit. If ice slide is pressedmanually, the light should go out. If the indicator light is still on even the ice slide ispressed, then the ice full switch fails;lClean Cycle light turn green. If the float switch works if it lit, if the float switch ispressed manually, the light should go out. If the indicator light is still on even thefloater is raised, then the float switch fails;n Electrical components output test:

Under above status, press button “STANDBY” step by step follow this list, youwill clear whether the electrical components good or not,

“Clean Recommend”Step Electrical component Status “Clean Recommend”indicator

1Compressor

Work Red2 Stop Shut down3

Fan motorWork Yellow

4 Stop Shut down5

Water pumpWork Green

6 Stop Shut down7

Hot gas valveWork Red

8 Stop Shut down9

Water inlet valveWork Yellow

10 Stop Shut down11 Drain pump Work Green

12 Drain pump is switched OFF and the unit restores factory settings From green to yellow then to red

1、system unit fault

Diagrams of the faultThe fault interpretation

Ice making, Ice harvest ,Bin full on light, Means water shortage of fault alarm

solution：A、Check the water pressure、

Photo 1

A、Check the water pressure、inlet valve、pipe is leakingB、Check the Water spray device、water box is leaking.

1、system unit fault

Diagrams of the fault The fault interpretation

Standby light on, Ice making light on, Means condenser to protect

Photo 1

Reason of fault: Fan failure

Solution：A、Check whether there is any loose fall on fan terminal controllerB、Replace the fan

1、system unit fault

Diagrams of the fault The fault interpretation

Standby light on、Ice harvest light on. Means short-term ice fault alarm

Photo 1

Reason of fault: Threeconsecutive into water less, thin ice.

Solution：一、Check the water pressure、inlet valve、pipe is leaking

1、system unit fault

Diagrams of the fault The fault interpretation

Standby light on、ice making light on、ice harvest light on, Means Long ice fault alarm

Photo 1

Reason of fault:Ice making more than 60 minutes three times in a row

Solution:一、Refrigerant leakage, cooling effect is slow二、Check whether float switch circulating pump failure or continuous work

1、system unit fault

Diagrams of the fault The fault interpretation

Standby light on、Bin full light on，Means Bin full switch fault alarm

Reason of fault: Five minutes to three

PICTURE

Reason of fault: Five minutes to three times to take off the ice

Solution：A. Check whether the evaporator is hanging ice, magnetic switch is open to normalB. Check whether the heating valve failure (break), cause time is too long to take off the ice

1、system unit fault

Diagrams of the fault The fault interpretation

Ice making light twinkle fault alarm(picture 1)

Reason of fault: Condensation sensor failure

picture 1

Reason of fault: Condensation sensor failureSolution：A. Condensation sensor failure will not affect the ice, ice making is normalB、Check whether the sensor terminal is inserted (short circuit or open circuit) .C、Check controller board port whether good contacts or welding. D、Replace the condenser sensor.

1、system unit fault

Diagrams of the fault The fault interpretationIce harvest light twinkle fault alarm(picture 1)

Reason of fault: Evaporation sensor failure

picture 1

failureSolution：A、Evaporation sensor failure will not affect the ice, ice making is normalB、Check whether the sensor terminal is inserted (short circuit or open circuit) .C、Check controller board port whether good contacts or welding. D、Replace the condenser sensor(picture 2)

picture 2

2、visible ice cube fault

Diagrams of the fault The fault interpretation

The evaporator top thin ice or without ice

Reason of fault: Refrigerant

PICTURE

Reason of fault: Refrigerantleakage, lead to bad ice production performanceSolution：According to the nameplate refrigerant perfusion, perfusion again.

2、visible ice cube fault

Diagrams of the fault The fault interpretation

Visible ice perforation deformity

Reason of fault: Water spray device hole is blocked, not smooth

PICTURE

device hole is blocked, not smooth

Solution：Use water spray hole diameter similar sharp objects, will pour water hole foreign body removal

2、visible ice cube fault

Diagrams of the fault The fault interpretation

Visible too thick ice

Reason of fault: Water pressure is too high, the floating ball failure

PICTURE

too high, the floating ball failure

Solution：A. Check whether the water pressure is between 0.2 to 0.4 MpaB. the floating ball failure

3、Item for repair

Overview

(PICTURE)On evaporation sensors or condensation sensors for replacement, annotation and distinguish port corresponding to the position, in order

PICTURE

corresponding to the position, in order to avoid the mistake caused by ice machine

Condensation sensor and evaporation sensor port is wrong, machine running around 40 s, into the short-term ice failure shows that into the ice off state

4、Potential quality improvement projects

line to inprove

In view of the previous line 、line layout is not neat（picture 1）, the corresponding optimization(picture 2).

picture 1

2).New rectification line, line spacing line spacing device are carried out related technical requirements.New rectification circuit changed the way bind, effectively avoid high fever, vulnerable status.

picture 2

picture 1

Piping for cold

For preliminary heat preservation cotton winding copper pipe cold way, if the wound does not reach the designated position(picture 1 ), easy to form leakage cold affect machine performance, as well as the formation of condensation water insulation changed to a cotton padded covering wrapped cotton padded covering wrapped pipe cold way(picture 2)

The new way to solve by manual winding operation, caused by pipeline leakage therein, to prevent the pipeline leakage tied to point will produce condensate

picture 2

Item. Electronic Components Failure Action LED Waring. Making Ice or Not

1Temperature probe at

Condenseropen circuit or shortcircuit

Failure warning forTemperature probe at

Ice-making flashing YES

2Temperature probe at

Evaporatoropen circuit or shortcircuit

Condenser probe failurewarning

Ice-harvest flashing YES

short circuit/Unable tocut off

Lack of Water waringIce-making+Ice-harvest+Ice-fullflashing

NO

open circuit/Unable toconnect

Making Ice directly after unitturns on.Thin ice block or noice made. Overtime ice harvestor maganism switch failure

Standby+Ice-full flashing NO

short circuit/Unable tocut off

Maganism switch failureWaring

Standby+Ice-full flashing NO

open circuit/Unable toconnect

Ice-harvest starts and holds for50 seconds,then stop and transto Ice-full.

Ice-full flashing on NO

5 Compresser Not start Overtime Ice Making WarningIce-making+Ice-harvest+Standbyflashing

NO

6 Condenser Fan Not start Overtime Ice Making WarningIce-making+Ice-harvest+Standbyflashing

NO

7 Water Pump Not start Overtime Ice Making WarningIce-making+Ice-harvest+Standbyflashing

NO

Not open Overtime Ice Harvest Waring Ice-harvest+Standby flashing NO

Failure close Overtime Ice Making Warning Ice-making+Ice-harvest+Standbyflashing

NO

9 Water Inlet Valve Not start Lack of Water Waring Ice-making+Ice-harvest+Ice-fullflashing

YES

Water Leak Lack of Water Waring Ice-making+Ice-harvest+Ice-fullflashing

YES

Not start Lack of Water Waring Ice-making+Ice-harvest+Ice-fullflashing

YES10 Drain Pump

Action Caused by Electronic Components Failure

3 Float Switch

4 Maganism Switch

8 Hot Gas Valve

Warningpriority

Warning typeConditions thatCause Warning

Led Flash Ice Maker Action Reason

1.No warter supply2.Low presure water supply

Ice-making 3.Water leakIce- 4.Low environment temperature. Ice forming earlier than normal

Ice-full 5.Drain pipe blocked. Ice-making start before drain off water in tank.6.Magnatism switch failure, water flow out from Ice slideway.7.Ice forming in water tank.

1.Temperature at condensor air outlet higher than 158℉ -a.condensor fan failure

Standby -b.dirty condensorIce-making 2.Environment temperature lower than 27℉

-a.Environment temperature lower than 27℉ before start -b.Environment temperature lower than 27℉ after ice full.3.Temperature probe failure

StandbyIce- Lack of water.

1.Refrigerant leakIce-making 2.High environment temperature

Ice- 3.Dirty condensorStandby 4.Water inlet failure,continouse supply water in tank.

5.Hot gas valve failure6.Temperature probe at evaporater failure.

1.Magnetismswitch failure.2.Thin ice, can not drop off from ice mold.

Standby -a.thin ice caused by lack of waterIce-full 3.Thick ice，hard to drop off from ice mold.

-a.high water supply pressure, water supply exceed. -b.water inlet failure,water supply exceed.4. Environment temperature too low to harvest ice.5. Hot gas leak.6. Float switch failure.

6Condenser

probe failureWarning

Probe at condenseropen circuit and

short circuitIce-making

Working in normal buthigh temperature

protector forcondensor isinavailable.

1.Probe at condenser open circuit and short circuit，do noteffect ice-making, but can not protect the key partsautomatically.

1.Probe at condenser open circuit and short circuit，but do noteffect ice-making.

2.Temperature Probe failure.

2Condensorprotecting

Temperature ofprobe at Condensorexceed and last for

more than 5seconds.

Waring and hold asStandby till

temperature recoverto permited range.

Reason for Warning

1Lack of water

Warning

Water float switchcontinuously on for

long time.

Hold Clean status,water supplycontinuously.

3Ice making in

short time

Three times in a rowfor not more than

default ice makingshortest time.

Waring andcontinuously making

ice.

4Ice making

cost long time

Three times in a rowfor more than 60

minutes ice makingtime.

Waring and drian offwater in tank and then

standby.

5

Magnetismswitch failureWarning/Long

time iceharvest

Three times in a rowfor more than the

longest time of icefreezing on ice mold.

3 timescontinously,unit drain

off the warter thenstandby and Warning.

7Evaporator

probe failureWarning

Probe at evaporatoropen circuit and

short circuit

Ice-harvest

Working in normal；Magnetism switch

control the time of iceharvest and judge the

ice full