Affordable Aircon Repair In Singapore

Singapore's hot and humid tropical climate—with temperatures averaging 26°C to 34°C and humidity levels reaching 100%—makes air conditioning a daily necessity for most residents.

Due to this constant use, it's common for air conditioning systems to develop faults over time. Below, we explore the common reasons why your aircon may need repair in Singapore.

Common Reasons Your Aircon Needs Repair

Lack of Maintenance: Without regular cleaning and servicing, dirt and dust build up inside the unit, affecting performance and causing system failures.
Wear and Tear: Components like compressors, motors, and fans naturally degrade over time due to continuous operation.
Electrical Issues: Problems like blown fuses, faulty wiring, or tripped breakers can prevent the system from operating properly.
Refrigerant Leaks: Low refrigerant levels reduce cooling performance. Leaks often occur in the piping, evaporator coil, or condenser unit.
Old Age: As systems age, they become less efficient and more prone to breakdowns—especially if they're not maintained regularly.

Signs Your Aircon Needs Repair

Watch out for these common signs that indicate it's time to book an aircon repair service:

Poor Airflow

Weak airflow may be due to clogged filters or a failing motor.

Noisy Operation

Rattling, squeaking, or grinding sounds often signal loose parts or motor issues.

Foul Smells

A musty or moldy odor may be caused by a dirty filter or mold buildup inside the unit.

Water Leakage

Leaks can occur from clogged drainpipes, a cracked condenser, or refrigerant issues.

Not Cooling Properly

If warm air is blowing, it could be a refrigerant leak or a broken compressor.

High Electricity Bills

Unusually high bills may indicate your unit is overworking due to inefficiency or faults.

Frequent Shut-Offs or Won’t Turn On

Could be caused by overheating, dirty coils, or electrical problems.

Blinking Indicator Lights

Often signals internal faults like motor issues or sensor malfunctions—refer to your unit’s manual.

Common Aircon Problems We Fix

Aircons are complex machines with several parts, circuits, devices, metal/plastic frames and not to forget the refrigerant gas (R22 or 410A). So, you can imagine how many things can go wrong. Here we cover some of the most common problems you might face with your air conditioner like Aircon not cooling, Aircon leaking water, malfunctioning PCB, choked drainage pipe, noisy condenser or overheating FCU.

Aircon Leaking Water

Water leakage is usually caused by a clogged drain line or dirty filters. It can lead to dripping from the aircon unit.

Fix Aircon Water Leak

Aircon Not Cooling

Aircon not blowing cold air? It may be due to low refrigerant gas, dirty coils, or a faulty condenser unit.

Fix A/C Cooling

Aircon Overheating

Overheating is often due to dirty filters, clogged coils, or long operation hours without servicing.

Fix A/C Overheating

Aircon Condenser Repair

A faulty or dirty condenser can cause poor cooling or complete system breakdown. Regular checks help avoid this.

Fix Aircon Condenser

Aircon PCB Replacement

The PCB controls aircon functions. A damaged PCB can stop your system from powering or responding.

Fix Aircon PCB

Noisy blower fan or condenser - StringsSG

Noisy Aircon

Strange sounds from the aircon may come from the blower, compressor, or motor. It often means worn-out parts.

Fix Noisy Aircon

Aircon Repair Costs in Singapore

Before starting any repairs, a technician will conduct a thorough assessment to identify the root cause of the issue. Once diagnosed, you will receive a quotation for the repair. In some cases, replacing your aircon may be more cost-effective than repairing it.

Often, common issues can be resolved immediately with deep cleaning and minor parts replacement.

Once the unit is repaired, be sure to test its cooling, oscillation, and remote control functions before the technicians leave.

DIY Aircon Repair: Common Error Codes

Learn how to identify and fix common aircon problems using error codes displayed on your unit.

Problem with indoor or outdoor temperature sensor.

Fix - Turn off the aircon, remove the indoor unit cover, clean the temperature sensor with a soft cloth, then turn it back on.

Issue with the pipe temperature sensor.

Fix - Check and refill refrigerant gas if levels are low.

Discharge temperature sensor issue.

Fix - Clean air filters and remove any duct blockages.

Condenser unit problem.

Fix - Inspect outdoor unit for debris or damage; check if fan is spinning freely.

Temperature sensor or thermistor fault.

Fix - Contact a technician to diagnose and replace the faulty part.

Fan motor issue.

Fix - Check motor wiring, clean fan blades, or replace the control board if necessary.

Compressor mode mismatch or fault.

Fix - Try resetting the unit. If issue persists, the compressor may need replacement.

Usually related to pipe temperature sensor, varies by model.

Communication circuit issue.

Fix - Check wiring and power, then reset the unit.

Indoor ambient temperature sensor fault.

Room temperature sensor issue.

Heat exchanger temperature sensor problem.

Suction temperature sensor issue.

Discharge temperature sensor issue.

Water temperature sensor fault.

Outdoor ambient temperature sensor fault.

If your issue persists or you're unsure about the repairs, it's best to consult a professional. Technicians have the tools and training to ensure accurate diagnostics and safe repairs.

DIY Troubleshooting: Aircon Won’t Turn On

Follow these steps to identify why your air conditioner isn’t powering up:

Power Supply: Ensure the unit is plugged in and the outlet is functional. Try another outlet if unsure.
Remote or Thermostat: Check if the remote has power. Replace batteries if the display is blank.
Circuit Breaker: Look for tripped breakers in your electrical panel and reset them if needed.
Internal Components: If basic checks don’t resolve the issue, there may be a problem with the compressor, capacitor, or motor. Contact a professional for repairs.