Repair Aircon Printed Circuit Board (PCB)

Aircon Printed Circuit Board (PCB) Repair & Replacement Cost

Updated - Sat, 20 Apr 2024

What is a Printed Circuit Board (PCB)?

An aircon PCB (Printed Circuit Board) refers to the control or circuit board in an air conditioning unit that controls various functions of the system. It is responsible for receiving signals from the thermostat, processing these signals, and communicating with the various components of the air conditioning unit to maintain the desired temperature and other settings.

The aircon PCB contains various components, including microprocessors, sensors, relays, and other electronic components. It can be programmed with various settings and functions, depending on the specific model of the air conditioning unit.

If there is a problem with the aircon PCB, it can affect the overall performance of the air conditioning system. In such cases, a trained technician may need to diagnose the issue and repair or replace the faulty PCB to restore proper operation of the air conditioning unit.

Indoor Aircon Unit PCB

An aircon indoor unit PCB (Printed Circuit Board) refers to the circuit board that is located inside the indoor unit of an air conditioning system. This PCB is responsible for controlling the various functions of the indoor unit, such as the fan speed, air flow direction, and other settings.

Outdoor Aircon Condenser PCB

An aircon condenser PCB (Printed Circuit Board) refers to the control board or circuit board that is located inside the condenser unit of an air conditioning system. The condenser unit is the outdoor component of the air conditioning system that houses the compressor, fan, and other important components.
The aircon condenser PCB is responsible for controlling the various functions of the condenser unit, such as the compressor, fan motor, and other parts. It receives signals from the thermostat and communicates with the indoor unit PCB to coordinate the overall operation of the air conditioning system.

When to replace or repair an Aircon PCB?

Whether to repair or replace an aircon PCB depends on several factors, including the age of the unit, the extent of the damage, and the cost of repair versus replacement. Here are some general guidelines to consider:

1. Age of the unit

If the air conditioning unit is relatively new and still under warranty, it may be more beneficial to have the PCB repaired rather than replaced. However, if the unit is older, it may be more cost-effective to replace the PCB or even the entire unit.

2. Extent of the damage

If the damage to the PCB is minor, such as a blown fuse or faulty relay, it may be possible to repair the PCB. However, if the damage is severe, such as a burnt-out board, it may be more beneficial to replace the PCB. However, a repair cost may be close to a complete replacement.

3. Cost of repair versus replacement

If your air conditioning system is under warranty then, the cheapest option is to get in touch with the dealer who can repair the PCB if it is still repairable, otherwise is it more cost effective to replace the PCB with a new one, because the cost of repair can sometimes exceed the cost of replacement.

Why you should never repair a faulty aircon PCB?

We always recommend to replace the damaged PCB over repairing it. Replacing the aircon PCB is always better than repairing it, especially if it is out of warranty, for the following reasons:

1. Efficiency

A new PCB may be more efficient than a repaired PCB, leading to better performance and energy savings. This can result in lower electricity bills and reduced wear and tear on the air conditioning unit.

2. Reliability

A new PCB is likely to be more reliable than a repaired PCB, as all the components are new and there is no risk of other parts failing shortly after the repair. This can provide peace of mind and reduce the likelihood of future breakdowns.

3. Cost-effectiveness

In many cases, the cost of repairing a PCB can be close to or even exceed the cost of replacing it. In such cases, it may be more cost-effective to replace the PCB or even the entire unit, especially if the unit is old or outdated.

4. Warranty

A new PCB often comes with a warranty, which can provide added protection and coverage in case of any future issues.

Aircon Printed Circuit Board (PCB) Replacement Cost

Indoor unit PCB replacement can cost anywhere between $350 to $450, whereas, the condenser unit PCB replacement can cost between $480 to $600.

The cost of replacing an aircon Printed Circuit Board (PCB) can vary depending on several factors, such as the brand and model of the air conditioning unit, the complexity of the repair, and the cost of the replacement parts.

The replacement cost is inclusive of the parts, transportation and labor cost for replacing the PCB.

Usually the indoor unit PCB replacement cost is cheaper than the condenser unit PCB replacement.