Wednesday, May 22, 2013

How do I maintain and fix Refrigerator

Posted at  11:50 AM - by maihoub ateya 0

Refrigerator maintenance


Check thermostats:

1. Bring Thermostat refrigerator
2. Using Alawmmitr then examine the parties connected thermostats
3. If gave Alawmmitr the signal be Althemustat the conductor
4. Turn the cylinder of Freon, and open and shed on the root of coolant thermostats
5. Examine the ends of thermostats:
• If you gave the signal to be thermostats continued Atlan
• If you do not give a signal be thermostats separator (ergonomics)

Examination Rilah:

1. Using Alawmmitr then scans the parties L, M:
• If you do not give referring be Rilah to the Atlan and replaces
2. Using Alawmmitr then scans the parties L, S:
• In the normal position of the relay must not give a signal
• Turn Rilah and examine the parties to the case did not give referring be Rilah to the Atlan and replaces

Examination Alawvrlod:

1. Do bring Alawvrlod and preheat the metal plate and then inspect both sides Alawvrlod using Alawmmitr:
• in the event gave the signal have conductive Alawvrlod (Atlan)
• If you do not give a signal have separator Alawvrlod (ergonomics)
• In case cool Alawvrlod must be connected between terminal

examination Altaymr:

1. Place Altaymr on the workbench
2. Using Alawmmitr the Examine the four Altaymr parties (1.2.3.4) Note that the reading will be between 1.3 (ends Almattur)
3. In If gave Alawmmitr the read (7-8 kilo ohms almost) be Ergonomics time engine
4. Building on the type Altaymr and according to Figure 1 Line 1 is the protector and 3 line is the line (cold)
5. Move column Altaymr with scorpions Asahlahaddat تكات:
• in the event was much be in the rotation cycle of the compressor (connect between the dots 1.4)
• in the event hear التكة the rapidly be in cycle Aldefrost (connection between points 1.2)
6. When there is a full connection between the parties to be corrupted Altaymr
7. When there is no connection between the parties to be corrupted Altaymr

• Inspect propeller engine:

1. Place the evaporator fan on the workbench Figure 2
2. Parties arrived fan with Alawmmitr:
• When there reading means that the a propeller engine sound file
• When not having read the file is corrupted and replaced the fan
• When there is read and not rev it shows that the rotor damaged chairs and change the fan

Geyser examination:

1. Place the heater on the workbench
2. Using Alawmmitr the check between the parties to the heater.
3. In If gave Alawmmitr the read be Geyser Ergonomics (each heater gives resistance reading by type and capacity)
4. When there is no connection between the parties to be Geyser Geyser Atlan

• check Thermostat Aldefrost:

1. Place Thermostat Aldefrost on the workbench
2. Arrived ends of Albaamaitl with Alawmmitr:
• When a read be Albaamaitl the Atlan and replaces بىخر the same type
3. Using r-12 cylinder, RIKEN Albaamaitl the so delights
4. Arrived ends of Albaamaitl with Alawmmitr:
• When there read means that Albaamaitl is the sound
• When there is no reading be Albaamaitl the interval and replaced by another of the same type



1. Bring the compressor and open the tray electrical connections
2. No. Parties compressor numbers 1 2 3
3. Using Alawmmitr select the amount of resistance between the parties 1 +2.1 +3.2 +3.
4. Extrapolation of the results, we find that:
• greater resistance to be between R + S
• smaller resistance is among the R + C
• Central resistance is among the S + C
• Number of joint between the largest and smallest of the party resistance R
• After selecting the party R is the second number in the largest party is resistant S
• Automatically be the third number is the party C

5. Reached an electrical circuit for the initial operation of the compressor as shown in Figure 1
6. Press the bell for 1 second and record the following observations:
• In the absence of rotation of the compressor within 10 seconds, it shows the Calendar files for combustion compressor
• If the compressor house but does not continue to spin after the lifting of the pressure on the key bell, it shows that the rotation of the compressor files corrupted
• If the compressor rotation and continue to rotate the compressor sound

Test vent for the cooling circuit in the refrigerator regular

1. Lift Fish refrigerator from the power source
2. Cut the charging and discharging pipe on the compressor so that it evades the gas slowly
3. Install the service valve by welding (silver alloy) and then rode in nitrogen hose wrap service
4. Increase pressure nitrogen gas circuit even dry up to 200 lb / inch 2
5. Welded Joints vent tested in the circuit using a lather
6. If soap bubbles appeared place links, this indicates the presence of vent
7. In the event of a vent, located venting then escapes nitrogen and welded the place in a good way and then re-test venting again by the first method

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