Residential & Unitary AC SpecialistsHome Cooling Experts
Expert Maintenance for Window, Split, and Cassette ACs in Dubai Homes & Offices. We fix Water Leaks, Gas Issues, and Electrical Faults.
- 1. Window & Split AC Repair
- 2. Water Leakage Fix
- 3. Gas Refill (R22/R410A)
- 4. Capacitor Replacement
- 5. Annual Maintenance (AMC)
Home AC Repairs
Recent repairs in Villas and Apartments: Water Leaks, Noisy Compressors, and Gas Charging.
Split AC Capacitor Change
Diagnosis & Solution
Outdoor unit was humming but the fan was not spinning. Diagnosed a weak dual capacitor (35+1.5 uF). Replaced with a new heavy-duty capacitor and checked amp draw.
Cassette AC Drain Pump
Diagnosis & Solution
Ceiling AC unit was showing E4 error and leaking water. Replaced the faulty drain pump and cleaned the drain pan to restore proper water drainage.
Window AC Compressor
Diagnosis & Solution
Window AC was blowing warm air. Compressor terminal was burnt. Replaced the Rotary Compressor, installed new overload protector, and regassed with R22.
Gas Leak at Flare Nut
Diagnosis & Solution
Split AC cooling was very weak. Found oil traces on the outdoor pipe connection. Cut and re-flared the copper pipe, tightened the nut, and topped up R410A gas.
Deep Cleaning Villa
Diagnosis & Solution
Full service for 5 wall-mounted split units. Used bag method to pressure wash indoor coils without making a mess. Cleaned filters and outdoor condensers.
Live Telemetry & Logistics
Real-time coordination of our 17 specialist teams across Dubai.
Home & Office AC Repair
We provide expert repair and maintenance for Split, Window, and Cassette AC units. From gas refilling to compressor replacement, we handle it all.
1Window AC (Single Box Unit)
Robust, single-unit cooling solution for labor camps, cabins, and older buildings.
Technical Information
All components (Compressor, Condenser, Evaporator) are housed in a single chassis. Installed in wall openings or windows.
Working Principle
Draws room air, cools it via the evaporator, and rejects heat outside from the back condenser. Simple and durable.
Maintenance & Repair Services
Mechanical Repair
- Compressor mounting rubber change
- Fan motor & blade replacement
- Thermostat knob repair
Cleaning
- Chemical jet wash (Slide-out)
- Front grill washing
- Condenser fin combing
2Wall Mounted Split AC
The most common, silent cooling choice for Dubai villas and apartments.
Technical Information
Consists of two separate units (Indoor & Outdoor) connected by copper pipes. Available in Non-Inverter and Inverter models.
Working Principle
The indoor unit absorbs heat quietly, while the noisy compressor sits outside. Ideal for bedrooms and living rooms.
Maintenance & Repair Services
Hygiene Service
- Deep coil cleaning (Bag method)
- Blower wheel washing
- Filter sterilization
Leakage Fix
- Drain pipe flushing (Nitrogen)
- Tray waterproofing
- Wall stain prevention
3Cassette & Floor Standing
High-capacity cooling for shops, restaurants, mosques, and large halls.
Technical Information
Cassette: Ceiling-mounted with 4-way airflow. Floor Standing: Tower design for powerful air throw.
Working Principle
Uses powerful blower fans to distribute cool air over large areas. Often equipped with internal drain pumps.
Maintenance & Repair Services
Component Fix
- Drain pump replacement
- Swing motor & flap fixation
- Remote receiver repair
Electronics
- PCB board repair
- Contactor replacement
- Sensor calibration
4Electrical & Components
The power management system for Non-Inverter & Inverter units.
Technical Information
Critical Issues: 'Capacitor Failure' (The #1 reason outdoor units hum but don't start). 'Sensor Failure' causing random cut-offs.
Working Principle
Capacitors provide the starting torque for compressors and fan motors. Contactors manage the high-voltage power supply.
Maintenance & Repair Services
Start Components
- Capacitor replacement (Dual/Single)
- Hard Start Kit installation
- Compressor terminal repair
Control Wiring
- Contactor replacement
- Terminal wiring repair
- Fuse replacement
5Gas Charging & Piping
Copper piping network carrying R22 or R410A refrigerant.
Technical Information
Critical Issues: 'Gas Leakage' at flare nuts due to vibration. 'Insulation Damage' causing water dripping from pipes.
Working Principle
Refrigerant circulates between indoor and outdoor units, absorbing and rejecting heat to provide cooling.
Maintenance & Repair Services
Leak Services
- Leak testing & Brazing
- Flare nut tightening
- Valve core replacement
Gas Refill
- Gas top-up (R22/R410A)
- Pipe insulation (Armaflex) repair
- Vacuuming system
Home Cooling Maintenance
Dirty filters and coils reduce cooling efficiency and increase electricity bills. Our focus is on Deep Cleaning & Water Leak Prevention.
Master Service (Deep Chemical Wash)
Dubai dust blocks filters and coils, reducing cooling. We dismantle the indoor unit and hydro-jet the evaporator and blower wheel.
Water Leakage Resolution
Water dripping from your AC? We flush blocked drain lines with nitrogen pressure and fix damaged pipe insulation.
Annual Maintenance Contract (AMC)
Keep your home cool year-round. 3 services per year + priority breakdown support for Villas and Offices.
Transparent Service Pricing
Affordable rates for Dubai Homeowners. No hidden fees.
General Service
- Filter Cleaning
- Water Drain Flush
- Gas Pressure Check
- Transport Fee Included
Deep Chemical Wash
- Machine Pressure Wash
- Anti-bcellular Spray
- Drain Line Flushing
- Before/After Photos
Gas Leak / Capacitor
- Capacitor Replacement
- OR Gas Top-up (1kg)
- Electrical Check
- Leak Testing
Recent Fixes
Solving cooling problems in Dubai homes every day.
BEFORE
AFTERVilla Bedroom - Water Leakage Nightmare
Problem: Water dripping on bed. Drain line blocked by algae and sludge build-up.
Solution: High-pressure nitrogen flushing of the drain pipe and tray sanitization.
Result: Leak stopped immediately, cooling efficiency improved.
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AFTEROld Office - Window AC Noise
Problem: Loud vibration noise. Compressor mounting rubbers were hardened and broken.
Solution: Pulled out chassis, replaced compressor grommets, and tightened fan blade.
Result: AC running silently and efficiently.
Digital Job Card
We provide a digital service report after every visit. You'll know exactly what was fixed, the gas pressure readings, and the filter status.
Clear Diagnostics
Gas pressure, Ampere draw, and Cooling temperature logged.
WhatsApp Updates
Receive your invoice and report directly on your phone.
Job Card #2024
Generated on 15 Nov 2024
Technician Notes:
Split AC leaking water. Drain pipe unblocked. Filter cleaned.
Attachment: ServiceReport.pdfAC Care & Lifespan
Window AC Life
Typical lifespan: 7-12 years. Very durable, but requires regular cleaning of the slide-out chassis.
Split AC Life
Typical lifespan: 10-15 years. Monthly filter cleaning prevents water leaks and saves electricity.
Common Issues
Water leaks, warm air (capacitor failure), and bad smells are the most common issues we solve daily.
UNITECH Chiller Specialists
Industrial HVAC Engineers in Dubai • Open 24 Hours
Ibrahim Al Mansoori
Local Guide · 2 days ago
We manage a mall in Barsha. UNITECH handles the Rooftop Chiller Maintenance. They performed chemical foam washing on the condenser coils and replaced the fan motors. Head pressure dropped significantly.
Thank you Mr. Ibrahim. Clean coils are essential for preventing High Pressure Trips in summer.
James Wilson
Local Guide · 3 days ago
Our tower had a compressor burnout. Their engineer diagnosed the electrical failure and replaced the Bitzer Screw Compressor within 24 hours. Very professional lifting and commissioning.
Sarah Jenkins
Local Guide · 1 week ago
The Cooling Towers were full of scale. They did a complete descaling and replaced the fill packs. The approach temperature is now perfect. Best industrial HVAC team.
Ahmed Bin Sultan
Local Guide · 2 weeks ago
The primary Chilled Water Pump was leaking in the plant room. They replaced the mechanical seal and aligned the coupling. No more floods.
Glad we could help, Ahmed. Mechanical seal integrity is a priority for us.
Robert D'Souza
Local Guide · 1 month ago
Our chiller lost all gas. They traced the leak to a vibration crack, brazed it, pressure tested with Nitrogen, and refilled R134a. System is holding pressure perfectly.
What Our Clients Say
"My split AC was leaking water for days. UNITECH came within an hour, flushed the pipe, and cleaned the mess. Very respectful team."
Mrs. Fatima
Homeowner, Jumeirah
"The AC in my apartment stopped cooling. They found a capacitor issue and fixed it in 20 minutes. The price was very reasonable."
Mr. John
Tenant, Marina
"Our Cassette AC was showing an error code. They fixed the drain pump and serviced the unit. Now it cools the shop perfectly."
Shop Manager
Grocery Store, Karama
Frequently Asked Questions
Do you serve commercial buildings?
Yes, we specialize in Rooftop Package Units for malls, offices, and warehouses.
Is your work guaranteed?
Yes, we provide a 1-month warranty on service and up to 1-year warranty on replaced compressors.
How quickly can you arrive?
For emergencies in Dubai, our target arrival time is under 90 minutes.
Why is chemical cleaning necessary?
Water alone cannot remove the salt and dust cemented onto the aluminum fins. Chemical foam lifts this grime to restore heat exchange efficiency.
