Damaged in a Flood ?
Problems that are common when a furnace is in a flood.
Malfunctioning Gas valve:
Once a gas valve is exposed to water the likely hood that it fails to open and close properly is extremely high due to the tiny components it is composed of. A small amount of corrosion will cause a big failure.
Intermittent Gas Valve Failure
Even if the valve is running fine for a few weeks that dose not mean everything is ok. Often times the valve starts with a small failure that is almost unnoticeable but over the season the corrosion will continue to build and you are left with an expensive repair that will no longer be covered under your insurance.
Blower motor damage
If even a small portion of your motor is submerged in water then you need to replace it. A motor will likely have sucked the water up and sprayed it all over the inside cabinet of the furnace. During the inspection the water may have dried up and seem fine but once water enters the winding its really just a matter of time before it will seize and cost you thousands of dollars.
Possible Mold Growth
A furnace has insulation inside of it to keep it running efficiently, even if the water level dose not reach the insulation the motor will have most likely sprayed the water and soaked the insulation. Replacing this would be very difficult and leaving it as is can pose a mold problem.
Water will accelerate the breakdown of all electronic parts. A new furnace today is as high tech as a computer and like your computer it dose not like water. Any amount of water on any component will lead to an early failure. These breakdowns can take time to occur but when they do it will be difficult to claim them threw your insurance once all your repairs are complete and more difficult to determine if they failed do to the previous water damage.
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