QD-U02B(SW) Universal A/C Controller Replacement Board Kit
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🔧 Replace your faulty AC board with the smart QD-U02B(SW) unit. ✅ Supports R22 & R410A up to 3 tons, with 3 fan speeds and precise sensors. ⚠️ Not suitable for inverter ACs. Easy to install—perfect for technicians.
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1241402
Weight
kg
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product description
🚀 Take total control over your conventional A/C unit with the smart QD-U02B(SW) board—built for non-Inverter split and window air conditioners using R22 or R410A refrigerants, up to 3 tons. Whether you're upgrading an old unit or replacing a broken PCB, this board gives you full access to smart features through any infrared remote.
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Specification |
Details |
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Compatible A/C Types |
Conventional (non-Inverter) split & window units using R22 or R410A, up to 3 tons |
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Incompatible |
Not suitable for Inverter-type units |
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Modes |
Cool, Heat, Dry, Fan, Auto |
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Fan Speeds |
3 speeds: Low, Medium, High |
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Sensors |
Room & evaporator temperature sensors for safety and accuracy |
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Display |
Back-lit LCD or LED |
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Timer |
Programmable ON/OFF |
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Sleep Mode |
Adjusts temp gradually for nighttime comfort |
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Defrost |
Automatic periodic evaporator defrost |
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Compressor Protection |
3-minute start delay after power cut |
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Auto-Restart |
Recovers previous settings after power failure |
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Voltage |
100–240 VAC, 50/60 Hz |
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Package Includes |
Main board, sensors, wiring, wall mount, screws |
Key Benefits:
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✅ Supports both R22 & R410A units up to 3 tons
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✅ NOT for Inverter-type A/Cs
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✅ Control all modes and 3 fan speeds via any IR remote
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✅ Sensors prevent overcooling, overloading, or system failure
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✅ Perfect for repairs, upgrades, or replacement
Use Cases:
✔ Residential & commercial HVAC systems
✔ Villas, apartments, rental properties
✔ AC technicians and workshops
✔ Server rooms or specialized cooling
How to Install:
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Disconnect AC power.
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Replace the old PCB with the QD-U02B(SW).
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Mount sensors correctly (room & evaporator).
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Connect to power (100–240V).
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Use existing IR remote to operate the system.
FAQ:
🔹 Can I use it with Inverter ACs?
No—this is only for conventional units.
🔹 What fan speeds are supported?
Low / Medium / High, switchable via remote.
🔹 Do I need a new remote?
No—any IR remote with common functions will work.
🔹 Is sensor placement important?
Yes—correct placement ensures safe and accurate cooling.
Why Buy From Us? 🛒
🚚 Fast & secure delivery across Saudi Arabia with real-time tracking.
💯 Guaranteed quality — each item is inspected for compatibility and function before shipping.
💬 Local Saudi tech support via WhatsApp to help with installation or questions.
🔄 7-day flexible return policy if the product doesn't match or is defective.
💳 Multiple safe payment options: Mada, Visa, MasterCard, Apple Pay, STC Pay, Tabby, Bank Transfer.