
Furnace circuit board or motherboard cost
Factor | Average cost |
Furnace motherboard | $50 – $300 |
Replacement labor | $250 – $350 |
Total | $300 – $650 |
Full Answer
How much does a motherboard for a furnace cost?
Replacing a furnace control board typically costs $200 to $600 or more depending on brand and age. It’s the main circuitry responsible for operating the components. High efficiency models will cost close to $600 while simple, single-stage models may only run you $75 to $200, the price of a service call.
How much is a circuit board for a furnace?
The average furnace circuit board replacement cost is $700. Homeowners can spend $50 on a circuit board, $80 on a furnace inspection, $25 per hour on HVAC technicians, and $500 in total labor costs. Tuning can cost another $120 if the circuit board isn’t working properly but doesn’t need to be replaced yet.
How much is a Control Board for furnace?
In general, there are two types of furnace control boards for gas heaters. Type A: Simple Ignition Control. These boards only have a simple control. They are often found in older units, and usually aren’t energy efficient at all. For that exact reason, simple ignition control boards usually only cost around $50. Type B: Integrated Furnace Control
How much does it cost to replace furnace circuit board?
Furnace Control or Circuit Board Replacement Costs Replacing a furnace control board costs $200 to $600 or more depending on brand and age.

How much does it cost to replace furnace circuit board?
A furnace circuit board replacement can cost between $550 - $1,100, depending on how complex your system is.
What causes furnace circuit board failure?
Failed transistors: The transistors in the control board are susceptible to damage due to power surges, static electricity, and age. Transistors are often the first part of a control board to fail. Loose wiring: The vibrations of the furnace over the years can cause wiring in the control board to shake loose.
Can I replace my own furnace circuit board?
If you've determined the circuit board is the cause of your furnace problem, it's a relatively easy part to replace. The circuit board is usually located in the furnace's blower chamber near the bottom of the unit. This is where the circulation blower fan motor is mounted.
What is a motherboard on a furnace?
A furnace control board is its brain. It's much the same as any computer circuit board. It operates all functions — and in the order they occur. It controls everything the furnace does during each heating cycle.
How do you know if your furnace motherboard is bad?
Use some tape to keep the switch pressed down. If your control board has 120 volts AC going into it, then it has power. If your control board has power, but it's diagnostic light is not on, then the control board is likely bad and needs to be replaced. NOTE: You'll need a multimeter to test for power in your furnace.
How long should a furnace circuit board last?
A furnace circuit board lasts 10 to 15 years on average, depending on the furnace condition, usage, and level of maintenance.
How much does it cost to replace a control board?
AC control board prices are $50 to $400 on average for the part alone, depending on the brand, type, and model....AC circuit board replacement cost.National average cost$450Minimum cost$100Maximum cost$1,300Average cost range$150 to $700Dec 27, 2021
How do you fix a furnace control board?
0:3411:44Replacing Furnace Control Board - YouTubeYouTubeStart of suggested clipEnd of suggested clipSo we're gonna have to allow for our screwdriver to get inside of there so that we can remove thoseMoreSo we're gonna have to allow for our screwdriver to get inside of there so that we can remove those screws. The only way to do that is to remove.
How do you reset a furnace control board?
How to Reset an Electric FurnaceFirst, turn off the power supply to the furnace by turning off the breaker in the circuit box.Locate the reset button on the furnace and press it to reset the furnace. ... If the button is popped up, press it down.Return the cover to the blower compartment and turn the power on.
How much does it cost to replace a circuit board in a central air unit?
HVAC Circuit Board Repair Cost The price to repair an HVAC circuit board is $100 to $600. This job often includes replacing it. HVAC circuit boards usually need repair or replacement due to other electrical problems in the system, such as: Dirty or incorrect fuses.
How much does a zone control board cost?
A multizone thermostat costs $100 to $600 and links to sensors in each zone....Dual and multizone HVAC cost factors.FactorAverage costZone control panel$120 – $300Zone sensors$30 – $60HVAC zone dampers$70 – $340Wiring$50 – $1502 more rows•Jan 11, 2022
What causes circuit boards to burn?
Three of the main reasons PCBs end up burning are: Extreme heat. Improper component spacing. Component failure or technician error.
Why do control boards fail?
Transistors are typically the first part to fail in a control board. Once again, the damaging heat and energy that hits those transistors due to voltage spikes, or even a little bit of static electricity, can wear out a board prematurely. This is going to change the composition of the materials they're made of.
How do you fix a furnace control board?
0:3411:44Replacing Furnace Control Board - YouTubeYouTubeStart of suggested clipEnd of suggested clipSo we're gonna have to allow for our screwdriver to get inside of there so that we can remove thoseMoreSo we're gonna have to allow for our screwdriver to get inside of there so that we can remove those screws. The only way to do that is to remove.
How do you bypass a circuit board on a furnace?
1:5912:33Bypassing a Furnace Control Board in Cooling - YouTubeYouTubeStart of suggested clipEnd of suggested clipAnd then run a jumper wire on the 24 volt coil one from common over here tied in with my common. AndMoreAnd then run a jumper wire on the 24 volt coil one from common over here tied in with my common. And then tie the other side to my G signal. And it should be able to power on this fan and bypass.