Flashing red light Goodman furnace
A flashing red light indicates that the unit’s control board has detected a problem code in the gas valve.
The cause of the flashing red light can be due to several things:
1) Gas Valve Failure – The gas valve is not opening, and gas cannot flow into the furnace.
2) Overload – The furnace may be overloaded with other devices connected to it, like a water heater.
3) High Gas Pressure – A high-pressure reading may indicate an obstruction in the gas line or insufficient air for combustion.
4) Low Water Level – If there is no water for cooling, natural gas will combust dry and produce carbon monoxide leading to a risk of fire.
5) Overheat Protection Switch – Protective device activated to reduce risk of overheating due to malfunctioning thermostat, dirty/
There are many reasons why a Goodman furnace could be flashing red light. The most common of these is an error with the sensors or system board. To diagnose this, you’ll want to look for error codes with your hand-held controller or check your furnace’s technical manual.
A flashing red light can also mean that there’s no power in the system or that the blower is not running. If this is the case, it might require a replacement circuit board and/or fan motor to get it up and running again.
Goodman Furnace is a manufacturer of HVAC systems and has the best furnace in the market. The company has been in business since 1946 and is headquartered in Houston, Texas.
A quick Google search shows that people have been experiencing flashing lights on their Goodman furnaces for a while now. Many of these people have called Goodman customer service and received no help, which leads us to believe that this is an ongoing problem.
The simplest way to solve this problem is by purchasing a new furnace. Still, many owners are unwilling to do so because they are uncertain that they will be able to find something better than the Goodman model they currently have.
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