Haier FMM350HSBSY0, FMM515HSBSY0, FMM450HSBSY0 Service Manual
This service information is designed for experienced repair technicians only and is not designed f or use by the general public. It
dose not contain warnings and cautions to advice non-technical individuals of potential dangers in attempting to service a product.
Product powered by electricity should by serviced or repaired only by experienced professional technicians. Any attempt to service
or repair the product or products dealt with in this service information by anyone else could result in serious injury or death.
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SERVICE MANUAL
Chest Freezer
MODEL:
FMM350HSBSY0
FMM450HSBSY0
FMM515HSBSY0
WARNING
2
Contents
Chapter 1 General Information ...............................................................................................................................3
Chapter 2 Product Feature ......................................................................................................................................4
2-1. specifications ...........................................................................................................................................4
2-2.External views ..........................................................................................................................................5
2-3. Explanation of The Models .................................................................................................................5
Chapter 3 Installation, adjustments and maintenance .............................................................................................6
3-1. Installation ...............................................................................................................................................6
3-2 Defrosting and Draining ...........................................................................................................................6
3-3 Cleaning the Freezer .................................................................................................................................7
Chapter 4 Disassembly ...........................................................................................................................................8
4-1. Door assembly (Door, hinge, hinge cover) ..............................................................................................8
4-2. Compartment Grill assembly ...................................................................................................................8
4-3. Control panel assembly ...........................................................................................................................9
4-4.Sensor cable ............................................................................................................................................10
Chapter 5 Control and display system .............................................................................................................. 11
5-1. Control panel ......................................................................................................................................... 11
5-2. Starting the Freezer ................................................................................................................................ 11
Chapter 6 System flow principle........................................................................................................................... 11
6-1. Refrigeration flow chart.........................................................................................................................12
6-2. Refrigeration flow scenograph ..............................................................................................................13
6-3.the soldered dots position for chest freezer model .................................................................................14
Chapter 7 Electrical Parts specifications ...............................................................................................................15
Chapter 8 Circuit diagram .....................................................................................................................................16
8-1. Brief principle diagram ..........................................................................................................................16
Chapter 9 Trouble shooting ...................................................................................................................................17
9-1. Normal phenomena................................................................................................................................17
9-2. Abnormal phenomena ............................................................................................................................20
3
Chapter 1 General Information
1-1. General Guidelines
When servicing, observe the original lead dress. If a short circuit is found, replace all parts which have been
overheated or damaged by the short circuit. After servicing, see to it that all the protective devices such as
insulation barriers, insulation papers shields are properly installed. After servicing, make the following leakage
current checks to prevent the customer from being exposed to shock hazards.
1) Leakage Current Cold Check
2) Leakage Current Hot Check
3) Prevention of Electro Static Discharge (ESD) to Electrostatic Sensitive
1-2. Insurance test
1. Check if there is any leak of current.
2. Cut out the power supply before the repair to avoid an electrical shock hazard.
3. In the case of a live-line test, insulating gloves should be worn to avoid potential electrical shock.
4. Confirm the rated current, voltage and capacity before testing with any kinds of instruments.
5. Watch if the upper door is open when you check something at a lower position.
6. Take out every part in the cabinet before moving the machine, especially things like panels (e.g. glass
shelf).
7. Please wear intact cotton gloves when repair any parts of the evaporator, so that scratches by the sharp
fins can be avoided.
8. If there is a breakdown with the refrigeration system, please surrender the machine to the service center,
else the leaked refrigerant may pollute the atmosphere.
9. The refrigerator use AC of 220V with a frequency of 50Hz.
10. A big fluctuation of voltage (exceed the range 187～242V) may cause a start failure of the refrigerator, a
burn-out of the control panel and compressor, or an abnormal sound from the compressor in operation. In
this condition an automatic voltage regulator over 60W should be added.
11. Take care not to damage the supply line. Don’t yank at the line; pull the plug out gently from the receptacle.
Don’t press the line under the cabinet or step on it. Take care not to roll on or damage the supply line when
moves the machine from the wall.
12. In the case of leakage of inflammable gases like carbon monoxide, open the door and windows. Don’t pull
out or insert the plugs of the appliance.
13. Don’t touch the refrigeration surface of the freezing compartment when the refrigerator is in operation,
especially when your hand is wet, else you may be glued to the surface.
14. Pull out the plug of power supply during clearance or power outage. Wait at least five minutes to resume
4
Packing dimensions & loadability
the power supply in order to prevent damage to the compressor caused by continuous restart.
Chapter 2 Product Feature
2-1. specifications
Model /
Type of appliance (FS=free standing /
BI= built-in)
Climate class (N=16-32℃
ST=16-38℃ T=18-43℃)
Key features
Gross capacity l / / /
Total net capacity l 429 320 320
Freezing capacity(kg/24h) kg/24h 30 26 26
Energy consumption/year kW.h/year 456 369 511
Max storage time at breakdown h 40 40 40
Kind of coolant (R134a/R600a) /
Technical data 30 26 26
Voltage / frequency V/Hz 220~/50 220~/50 220~/50
Input power / currency W/A 210/2.1 180/1.8 180/1.8
Lenght of cable / incl. plug cm 150/155 150/155 150/155
Temperature range (from>to) °C
/ FS FS FS
/ T T T
FMM450HSBSY0 FMM350HSBS
Y0
R600a/100g R600a/97g R600a/107g
≤-18 ≤-18 ≤-18
FMM515HSBS
Y0
Equipment & accessories
Defrost drain
Interior light / ● ● ●
Fast freeze switch / ● ● ●
Fast freeze lamp (yellow) / ● ● ●
On light (green) / ● ● ●
Product net dimensions /
Unit dimensions (H / W / D) cm 1410/745/860 1110/745/845 1110/745/845
Height with open lid cm 150 150 150
Net weight kg 67 51 51
Packing dimensions(H / W / D) cm 1470/775/895 1470/775/895 1470/775/895
Gross weight kg 76 58 58
/ ● ● ●
5
Service
User instruction / English English English
2-2.External views
2-3. Explanation of The Models
FMM - 350
Refrigerator’s Net Capacity
Haier T-Door/No frost
6
Chapter 3 Installation, adjustments and maintenance
3-1. Installation
The freezer should be conveniently located for day-to-day use in a dry well-ventilated room.
Do not install the freezer where the temperature will go below 32°F or above 110°F, because it will
not maintain proper temperatures.
Be sure to install the freezer on a floor strong enough to support it when it is fully loaded.
The freezer must be solidly positioned on the floor if it is to function at its best. Shims may be used
to accomplish this wherever the floor is too uneven. If the place selected for the freezer is damp or
moist, place 2 X 4 s (51 mm X 102 mm) under its entire length to assure adequate support.
3-2 Defrosting and Draining
In most climates, defrosting will be necessary only about twice a year.
To have the freezer operate most efficiently, do not permit more than 1/2” (13 mm) of frost to
accumulate on the shelves.
To remove frost, scrape with a plastic or wood spatula or scraper.
Do not use an ice pick or sharp-edged instrument as it may damage or scratch the freezer.
Do not use any electrical device in defrosting your freezer.
For Complete Defrosting
1. Turn the temperature control to the OFF position and unplug the freezer.
2. Remove all food and place it in corrugated boxes, insulated bags, picnic coolers, etc. Use
towels and newspapers for insulation as needed.
3. With the door/lid open, use pans of hot water to speed loosening of frost. Remove large pieces
before they melt.
Chest models have a defrost water drain at the front.
4. Sponge excess water from the bottom of the freezer as it collects to prevent over flowing.
5. After defrosting, clean the inside of the freezer.
6. Replace the drain plug inside the cabinet and the cap on the defrost drain. Fold over and dry
7
the gasket on the hinge side of the lid.
7. Plug in the freezer. Return the temperature control to its previous position and return food to the
freezer.
Water may drip from the back flange of the lid cover during defrosting. This is normal. Ice
builds up in the lid insulation when the lid is open for adding or removing food, and melts during the
defrosting operation.
3-3 Cleaning the Freezer
Outside. Protect the paint finish. The finish on the outside of the freezer is a high quality
baked-on paint finish. With proper care, it will stay new-looking and rust-free for years. Apply a coat of
appliance polish wax when the freezer is new and then at least twice a year. Appliance polish wax also
works well to remove tape residue from freezer surfaces.
Keep the finish clean. Wipe with a clean cloth lightly dampened with appliance polish wax or
mild liquid dishwashing detergent. Dry and polish with a clean, soft cloth. Do not wipe the freezer with
a soiled dishwashing cloth or wet towel. Do not use scouring pads, powdered cleaners, bleach, or
cleaners containing bleach.
Inside. Clean the inside of your freezer at least once a year. We recommend that the freezer be
unplugged before cleaning. If this is not practical, wring excess moisture out of sponge or cloth when
cleaning in the vicinity of switches, lights or controls.
Use warm water and baking soda solution-about a tablespoon of baking soda to a quart of water.
Rinse thoroughly with water and wipe dry. Do not use cleaning powders or other abrasive cleaners.
An open box of baking soda in the freezer will absorb stale freezer odors. Change the box ever y
three months.
Care should be taken in moving the freezer away from the wall. All types of floor
coverings can be damaged particularly cushioned coverings and those with embossed surfaces.
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