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I need he Diagnostic flash code for coleman evcon Furnace model

Resolved Question:

I need he Diagnostic flash code for coleman evcon Furnace model #BGM12520B
Submitted: 4 years ago.
Category: HVAC
Expert:  Bill replied 4 years ago.

flash codes for your board:

Rapid LED: Incorrect 24 Volt Phasing.
1. Flash: Flame with Gas Off.
2. Flash: Pressure Switch Stuck Closed.
3. Flash: Pressure Switch Stuck Open.
4. Flash: High Limit Switch Open.
5. Flash: Rollout Switch Open.
6. Flash: Lockout Caused By Pressure Switch.
7. Flash: Lockout Caused By No Ignition.
8. Flash: Lockout Caused By Loss Of Flame.
9. Flash: 115 Volts AC Power Leads Reversed.
11. Flash: Broken Rollout Wire.
*Fault is a soft lockout which resets automatically after one hour*

Customer: replied 4 years ago.
Sorry take so long, I shut the furnace off and turn it back on the ignitor lites the furnace fires up for a few seconds then shuts back down repeats itself 3 times then stops. I am getting 7 flashes. Dont understand issue or whats wrong becauseignitor is firing up furnace?
Expert:  Bill replied 4 years ago.
the furnace tried to light three times and failed, try to clean the sensor with steel wool or fine sandpaper, also remove the sensor wire from the ignition control and than put it back" heres examples of sensors:graphic
Bill, HVAC Technician
Category: HVAC
Satisfied Customers: 318
Experience: 15+ years service tech.
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