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The name is Serguei. I have a York furnace. yp9c080c16mp12ca…

Customer Question
Hello. The name is*****...

Hello. The name is***** have a York furnace. yp9c080c16mp12ca I get 3 flashes error code. Cleaned the tubes, made sure they click. The 3 flashes code happen "before" the ventor motor even begins, not after. But if I disconnect the pressure sensor (a 3 wire sensor that connects with tubings between ventor motor assembly/pressure switch/pressure sensor. Then Ventor motor at least starts. changed control board as well. Same thing is happening

Contractor's Assistant: Thanks. Can you give me any more details about your issue?

3 flashes error code. Which means pressure switch stays open. But error code comes before the ventor motor even starts. Pretty much within 2-3 seconds of beginning operation. Changed Control Board. Same problem. If I disconnect the Pressure Sensor. The Ventor Motor 'does' start, giving me a 3 flashes code after a few min of trying to make things close.

Submitted: 2 years ago.Category: HVAC
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Answered in 5 hours by:
3/7/2016
HVAC Technician: gotoman for ac, HVAC Technician replied 2 years ago
gotoman for ac
gotoman for ac, HVAC Technician
Category: HVAC
Satisfied Customers: 5,344
Experience: 51 years of experience install design and repair of all makes and models of AC
Verified

Serguei .. Problem is pressure switch. Common problem on this unit. Weak diaphragm in switch. Replace switch. Russ

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HVAC Technician: gotoman for ac, HVAC Technician replied 2 years ago

Contact Supplyhouse.com at(###) ###-#### Part is in stock there. Model and serial number ready. Russ

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Customer reply replied 2 years ago
I'm given an error that pressure switch fails to close, even before ventor motor starts. And you think it's the pressure switch that's failed?
Customer reply replied 2 years ago
Okey. I've ended up calling York and it's not the pressure switch's problem. One of the wires on the sensor, that 3 wire thingy is broken. You guys have been no help. Sorry.
HVAC Technician: gotoman for ac, HVAC Technician replied 2 years ago

Sometimes it better to be there but flow charts indicated bad air switch. Thanks Good Luck. Nice dealing with someone that ask the right questions. Russ

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