How much is a board for AC?

Author: Ernestine Corkery  |  Last update: Thursday, February 13, 2025

Professional AC Control Board Replacement. Some homeowners might be tempted to tackle the replacement themselves, especially since the control board itself typically costs between $100-$300 dollars. However, DIY repairs are not recommended when dealing with this important AC component.

How much does it cost to replace the AC board?

Replacement AC Circuit Board

The circuit board controls the operation of the blower fan motor as your air conditioner runs. The cost to repair this issue is typically between $100 to $800.

How much does it cost to repair AC board?

While a new OEM ( original equipment manufacturer ) AC PCB can cost INR 5000-7000, our expert diagnosis and repair allow for fixing issues at just INR 2250-4500 in most cases. PCB repair is significantly more economical compared to outright replacement. It prolongs your PCB's functioning, saving you money.

Can an AC board be repaired?

Fortunately, it is possible to repair a PCB. However, the task demands correctly diagnosing the problem, repairing tools, and technical knowledge. However, specific circuits must be repaired within a workshop environment and cannot be fixed on-site.

How do I know if my AC control board is bad?

Now that you know where the control board is and what it does, let's explain the top signs that your control board is malfunctioning.
  1. Illuminated Warning Lights. ...
  2. Immobilized Switches on the HVAC Control Board. ...
  3. Faulty Soldering Connections. ...
  4. Interrupted Sequencing. ...
  5. Temperature Regulation Issues.

Fixing Mini Split AC Dead Motherboard, That Won't Power On!!

How do I reset my AC control board?

It's a small, red button usually located on or around the unit. The button should have a clear 'reset' label. Once you find the button, press it for around three seconds and observe the AC. Check whether the AC kicks on immediately and if it doesn't, press the button again for another three seconds.

How long does an HVAC control board last?

The average furnace circuit board, also referred to as its “motherboard,” will last anywhere between 10 and 15 years.

Why do HVAC control boards go bad?

Furnace control boards are exposed to extreme temperatures and other conditions that can cause them to malfunction. Here are some of the most common causes of control board failure: A power surge from outages or lightning strikes. Cold weather causes the control board's components to freeze up.

How do you fix a bad circuit board?

How To Repair Circuit Boards
  1. Gather the tools and other materials that you'll need.
  2. Remove the damaged pad or component.
  3. Clean the track and remove solder.
  4. Place your copper tape over the track.
  5. Solder the joints.
  6. Restore the PCB through-hole.
  7. Place and solder your component.
  8. Trim excess tape from the repaired area.

How do you test an AC circuit board?

Testing Power and Ground Connections
  1. Connect the negative lead of a multimeter to the ground plane on the circuit board.
  2. Connect the positive lead of the multimeter to the power input of the board.
  3. Power on the board and check the voltage reading on the multimeter. ...
  4. Repeat this process for each power input on the board.

What does AC control board do?

The control board interprets the signals and transmits the relevant instructions. The AC control board also controls fan speeds, dampers, and motor speeds. Anything that interferes with the electrical and electronic controls on the board can interfere with its functions.

How much does it cost to repair AC circuit board?

The AC PCB repair cost lies in the range of Rs. 2,000 to Rs. 5,000. The PCB, which is the Printed Circuit Board, is a crucial element of the modern-day AC we use in our homes.

Is it worth fixing an AC?

Less than 50% of the replacement cost: If your HVAC equipment is under 10 years old and the repair bill is less than half of the cost to replace it, a repair is most likely the right choice.

How often should a wall AC unit be replaced?

If you kept your air conditioner in good condition over its lifetime, expect to need a replacement in about 10-15 years. Keep in mind that as your A/C grows older, its mechanical parts can become unavailable or obsolete over time. If you aren't able to replace a broken part, you will need to purchase new unit.

How do I know if my AC board is bad?

Changes in the Performance of Your HVAC System

If your HVAC system does not turn on at all or if it heats or cools your property excessively, the control board might be the cause of the problem. A damaged transistor or cut circuit could prevent the HVAC control board from sending the proper signals.

How much does it cost to replace a control board on an AC unit?

Air conditioning circuit board replacement costs $150 to $700 if the AC unit is not under warranty or $100 to $300 for labor if under warranty. AC control board prices are $50 to $400 on average for the part alone, depending on the brand, type, and model.

How do I reset my HVAC control board?

In AC systems, the air conditioner reset button is on the outside unit's lower edge, typically close to the ground. Some models have the reset button located behind the service panel, which may require tools to remove. Reset buttons are usually red or yellow with a clear “reset” label.

What is the most expensive part to replace on an AC unit?

Usually, it is a quick fix, but sometimes the failure can be caused by a much bigger problem. The most expensive part of an AC unit to replace and repair is the air compressor.

Is AC repair covered under home insurance?

Homeowners insurance covers HVAC systems when the damage is a result of a covered disaster or peril, including high winds, fallen trees, theft, hail or even a fire. So if lightning strikes your unit and damages its electrical components, your homeowners insurance policy would probably cover it.

How much is HVAC labor per hour?

Several factors influence how much you'll pay for labor for your next HVAC repair or replacement service. However, the average cost of HVAC labor is $75 to $150 per hour.

How to test if a control board is bad?

7 Circuit Board Troubleshooting Techniques
  1. Check for signs of intermittent loss of power.
  2. Inspect for burn marks or signs of overheating.
  3. Look for any malfunctioning components.
  4. See if there is any resulting corrosion or damage.
  5. Test the PCB with a multimeter.

Where to find HVAC control board?

In most cases the control board can be found at your furnace or air handler. If you're unable to locate your HVAC control board or are uncomfortable doing so, please contact a certified HVAC technician in your area for additional assistance.

Can a faulty circuit board cause a fire?

Overloading: When a PCB is overloaded with too much current, it can cause the board to overheat and lead to a burnt circuit board. Poor ventilation: A PCB that is not properly ventilated can also overheat and catch fire.

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