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Aircon Repair Services

Aircon Repair & Troubleshooting Singapore

Professional diagnosis and repair for aircon not cold, leaking water, noise, error codes and system breakdowns.

Aircon repair and troubleshooting service Singapore

Professional Aircon Repair & Diagnosis in Singapore

Need reliable aircon repair in Singapore? LK Brothers diagnoses and repairs common air conditioning problems including aircon not cold, water leaking, unusual noise, error codes, weak airflow and system breakdowns.

Our technicians inspect the key components of your aircon system — including filters, evaporator coil, drainage, electrical components, refrigerant condition and compressor — to identify the actual cause before recommending the appropriate repair.

You will receive a clear quotation before repair work proceeds, with completed workmanship backed by our 90-day workmanship warranty.

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90-day workmanship warranty
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Common Problems

Common Aircon Problems We Repair & Troubleshoot

Different symptoms can have different causes. Proper aircon troubleshooting helps identify whether your system requires cleaning, drainage work, refrigerant diagnosis, electrical repair or component replacement.

Aircon not cold repair Singapore

Aircon Not Cold

Dirty coils, airflow restriction, refrigerant problems, sensors or compressor faults can reduce cooling performance.

Aircon leaking water repair Singapore

Aircon Leaking Water

Blocked drainage, algae buildup, frozen coils or drainage slope problems can cause indoor water leakage.

Noisy aircon troubleshooting Singapore

Noisy Aircon

Buzzing, rattling or clicking may indicate loose parts, worn bearings, fan problems or electrical faults.

Aircon bad odour diagnosis Singapore

Unpleasant Odour

Mould, bacteria, dirty coils or stagnant drainage can create unpleasant smells from the indoor unit.

Aircon error code diagnosis Singapore

Error Code Display

Error codes may point to sensors, PCB boards, communication faults or other system problems.

Aircon not turning on repair Singapore

Aircon Not Turning On

Power supply, wiring, capacitor, control board or other electrical faults may prevent the unit from starting.

Transparent Pricing

Aircon Repair & Troubleshooting Price in Singapore

Our troubleshooting charges are transparent and include 9% GST and transportation. If the fault can be repaired or resolved during the visit, only the applicable repair fee is charged and the separate inspection fee does not apply.

Aircon Type Price (SGD)
Aircon Troubleshooting $43.60
VRV / VRF System $163.50
  • All prices stated above are inclusive of 9% GST and transportation.
  • For Sentosa, Jurong Island or other restricted areas, please contact us for a customised quotation.
  • If the issue can be repaired or resolved on site, only the repair fee will be charged. No inspection fee will apply.
  • We provide a 90-day workmanship warranty on completed jobs.
How It Works

Our 4-Step Aircon Repair & Troubleshooting Process

We diagnose the fault before recommending work, so the repair is based on the actual condition of your aircon system.

Step 1
Aircon visual inspection

Visual Inspection

Check unit condition, filters, drainage and visible electrical components.

Step 2
Aircon diagnosis testing

Diagnosis Testing

Run pressure, temperature and electrical checks where required to identify the fault.

Step 3
Aircon repair and rectification

Repair & Rectification

Carry out the required repair, cleaning, gas-related work or component replacement based on the diagnosis and approved quotation.

Step 4
Aircon final repair testing

Final Testing

Verify cooling operation and system condition before completing the job.

Aircon repair service Singapore

Fast, Accurate Diagnosis Before Repair

Find the actual cause of the fault before it turns into a larger aircon problem.

Aircon repair technician Singapore
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Need Aircon Repair?

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Why Choose Us

Why Choose LK Brothers for Aircon Repair in Singapore

We focus on proper diagnosis, transparent pricing and reliable workmanship so customers understand what their aircon needs before repair work proceeds.

Aircon repair workmanship warranty

90-Day Workmanship Warranty

Completed repair and troubleshooting work is backed by our workmanship warranty.

Aircon repair customer support

Clear Diagnosis

We inspect the aircon fault before recommending the appropriate repair or service.

Transparent aircon repair pricing

Transparent Pricing

Troubleshooting prices are published clearly, with a quotation provided before repair work proceeds.

Major aircon brands repair Singapore

Major Aircon Brands

Troubleshooting support for major residential and commercial aircon systems.

Aircon diagnosis testing Singapore

System Testing

Cooling, electrical and system checks are performed according to the symptoms identified.

Aircon repair Singapore

Repair Based on Diagnosis

Repair, cleaning, gas-related work or component replacement is recommended according to the diagnosed fault.

Need Aircon Repair in Singapore?

Book a professional diagnosis for aircon not cold, leaking, noisy units, error codes or other aircon faults. We inspect the problem and provide a clear quotation before repair.

Aircon Repair Singapore FAQs


LK Brothers aircon repair customer service Singapore
Why Is My Aircon Not Cold?

One of the most common reasons customers book aircon repair in Singapore is because the unit is running but not cooling properly.

  • Dirty filters or evaporator coils restricting airflow.
  • Low refrigerant or a refrigerant-related issue — see our aircon gas top-up service.
  • Faulty compressor or sensor.
  • Fan motor or electrical problems.

Our technician will inspect the system to identify the cause before recommending repair, cleaning or other work.

Why Is My Aircon Leaking Water?

Aircon water leakage can be caused by drainage or internal cooling problems.

  • Blocked drain pipe or algae buildup.
  • Frozen evaporator coil caused by airflow or refrigerant problems.
  • Incorrect drainage slope or installation issue.

Proper troubleshooting helps determine whether drainage cleaning, servicing or repair is required.

My Aircon Is Noisy — What Does It Mean?

Rattling, buzzing or clicking can indicate loose or worn aircon components.

  • Loose fan blades or outdoor unit components.
  • Worn blower or fan motor bearings.
  • Compressor or electrical contactor issues.

During aircon troubleshooting, the relevant components are inspected to identify the fault.

What Should I Do When My Aircon Shows an Error Code?

Aircon error codes vary between manufacturers and can point to several types of system faults.

  • Temperature sensor or PCB problem.
  • Communication error between indoor and outdoor units.
  • Electrical or wiring fault.

The fault source should be diagnosed before simply clearing or resetting the error code.

Why Does My Aircon Keep Turning On and Off?

Frequent starting and stopping, sometimes called short cycling, can be related to cooling imbalance or electrical faults.

  • Dirty coils or filters.
  • Faulty thermostat or sensor.
  • Refrigerant or pressure-related problems.

We can determine whether the unit needs general aircon servicing, repair or another service.

Can You Repair All Major Aircon Brands in Singapore?

LK Brothers troubleshoots and repairs major aircon brands, including:

  • Daikin, Mitsubishi Electric, Panasonic and Toshiba
  • LG, Midea, Gree, Fujitsu and Hitachi
  • Inverter and non-inverter systems

We also provide aircon installation, general servicing, chemical wash and chemical overhaul.

Do You Provide Same-Day Aircon Repair in Singapore?

LK Brothers provides same-day aircon repair and troubleshooting in Singapore where appointment slots are available.

  • Fast response for aircon not cold, leaking or noisy issues.
  • Transparent quotation before repair.
  • Appointment availability depends on the schedule for the day.
Do You Offer Warranty After Aircon Repair?

Yes. Completed aircon repair and troubleshooting work comes with a 90-day workmanship warranty.

  • Warranty starts from the completion date.
  • Applies to covered workmanship for the completed job.
  • Contact us if the repaired issue reoccurs during the warranty period.

Other Aircon Services in Singapore

Depending on the diagnosis, your aircon may need regular servicing, chemical cleaning, gas-related work or installation support.