Great question, Huzaifa bhai! Agar aap AC aur fridge repairing ka kaam technical level par professionally karna chahte hain, to aapko tools, gases, diagnostics aur common faults sab ka detail maloom hona chahiye. Neeche me aapko complete professional-level guide de raha hoon — bilkul structured tareeqay se:
🧰 AC & Fridge Repairing: Tools, Gases, Diagnostics & Common Problems
🔧 1. Essential Tools for AC & Fridge Repair
| Tool Name | Use |
|---|---|
| Manifold Gauge Set | Gas pressure check karne aur refill karne ke liye |
| Vacuum Pump | AC/Fridge ki lines vacuum karne ke liye (before gas charging) |
| Leak Detector (Electronic or Bubble Type) | Gas leak detect karne ke liye |
| Clamp Meter / Multimeter | Voltage, ampere, and continuity check karne ke liye |
| Fin Comb | Condenser or evaporator fins straighten karne ke liye |
| Refrigerant Scale | Accurate gas weight measure karne ke liye |
| Flare Tool Kit | Copper piping joint flare karne ke liye |
| Pipe Cutter & Bender | Pipe fitting aur shaping ke liye |
| Soldering Torch & Brazing Rods | Pipe joint repair ke liye |
| Recovery Cylinder | Purani gas safely collect karne ke liye |
| Digital Thermometer or Infrared Gun | Temperature check karne ke liye |
❄️ 2. AC & Fridge Refrigerant Gases: Types and Quantities
| Appliance | Common Gases | Quantity (Approx) | Notes |
|---|---|---|---|
| Window AC | R22 / R32 / R410A | 700–850 grams | Check model plate |
| Split AC (1 Ton) | R410A / R32 / R22 | 800–950 grams | R410A requires high-pressure tools |
| Split AC (1.5 Ton) | R410A / R32 | 1.0 – 1.2 kg | Follow OEM specs |
| Fridge (Domestic) | R134a / R600a | 100–150 grams | R600a is flammable, use with care |
| Deep Freezer | R134a / R404a | 110–200 grams | Depends on size and model |
💡 Important: Always refer to the appliance nameplate or technical manual for accurate gas type and quantity.
🔍 3. What to Check During Repair (Diagnostics)
For ACs:
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Compressor running or not?
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Is there any gas leak? (Check with leak detector)
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Low cooling? (Check suction & discharge pressure)
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Indoor/outdoor fan working?
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Thermostat or PCB problem?
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Dirty filters or clogged condenser?
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Capacitor OK?
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Outdoor unit making sound?
For Fridge:
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Compressor humming or clicking?
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Light on but fridge not cooling?
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Evaporator coil freezing?
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Thermostat cutoff working?
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Gas pressure ok? (Use gauge or bubble leak test)
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Overload protector or PTC faulty?
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Door seal tight?
🔁 4. Common Problems in AC & Fridge (Most Frequent Issues)
🌀 AC:
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Gas leakage (most common)
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Capacitor failure
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Compressor not starting
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Thermistor/PCB error
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Outdoor fan motor failure
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Blocked air filter
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Frozen evaporator coil
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Dirty condenser coil
🧊 Fridge:
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Gas leakage
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Compressor overheating
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PTC relay/overload damage
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Thermostat stuck
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Evaporator fan failure
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Ice build-up (manual defrost issue)
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Blocked capillary tube
✅ Professional Tips
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Use Nitrogen gas pressure testing to find leaks in split ACs.
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R410A gas requires dedicated tools (don’t use R22 gauges).
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Vacuuming is mandatory before gas charging to remove moisture.
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Never overfill refrigerant – always use weighing scale.
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Use gloves, goggles, and safety when dealing with flammable gases (R600a, R290).
Agar aap chahein to me aap ke liye:
-
Ek PDF guide tayar kar sakta hoon
-
Ya video course recommendations bhi de sakta hoon
-
Ya aap ke liye tools ki shopping list with links ready kar sakta hoon
Bas batayein aap ko kis format me aur kya chahiye agla step?
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