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.
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Ice Maker working procedure. · Ice Maker working procedure. Before start the Ice Maker, below items should be confirmed. A. Corresponding power supply and grounded socket. B. Clean
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Transcript
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