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Phil
Phil, Mechanical Engineer
Category: HVAC
Satisfied Customers: 6022
Experience:  Retired HVAC/ Electrical & Boiler contractor. Industrial
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I need the diagnostic light codes for a rodgers 50E47-070

Customer Question

i need the diagnostic light codes for a white rodgers 50E47-070 Board. i have a constant flashing
JA: I'll do all I can to help. How long have you been dealing with this?
Customer: well i just tried to fire up the furnace yesterday
JA: Did you check the furnace's filters?
Customer: yes
JA: Do you plan on doing the work yourself?
Customer: yes I'm an contractor
JA: Anything else we should know to help you best?
Customer: thats it I think
Submitted: 12 months ago.
Category: HVAC
Expert:  airheatman replied 12 months ago.

THE FLASHING LEED INDICATES THE ISSUE IS NOT THE BOARD BUT IN AN EXTERNAL COMPONENT OR WIRING.

Tell me which of the following applies to your problem.

1) The ignitor will warm up and glow red

2) The main burner flame will ignite

3) The main burner flame will continue to burn after the ignitor is turned off

Customer: replied 12 months ago.
The burners are not ignited. I was wanting to know the what the diagnostic code for the flashing LED on the control board
Customer: replied 12 months ago.
I'm sorry it's #1
Expert:  airheatman replied 12 months ago.

The flashing light simply tells us the issue is external from the board.We have to do step by step troubleshooting on this one to determine the issue.It is not like some units that have a 2 flash code to indicate a pressure switch, a 3 flash to indicate a limit, etc.

Since ignitor glows but burners do not light we will go to chart2.(see below)

Follow that flow chart and tell me how far we get

Expert:  airheatman replied 12 months ago.

If you do not have a manometer or pressure tester, tell me if you smell or hear gas from the valve?

Customer: replied 12 months ago.
I'm not in front of the unit right now but I'm headed there now. But all I could hear was the relay on the gas valve kick in and out
Expert:  airheatman replied 12 months ago.

When you get back to job will you have internet access so we can continue? And do you have a manometer or gauge pressure gauge and a volt meter?

Customer: replied 12 months ago.
I have a volt meter
Expert:  airheatman replied 12 months ago.

OK lets start when you get there lets try to determine if any gas is coming out of valve when it clicks

Customer: replied 12 months ago.
Ok
Expert:  airheatman replied 12 months ago.

Look forward to working with you