How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask gotoman for ac Your Own Question
gotoman for ac
gotoman for ac, HVAC Technician
Category: HVAC
Satisfied Customers: 5000
Experience:  51 years of experience install design and repair of all makes and models of AC
19613070
Type Your HVAC Question Here...
gotoman for ac is online now
A new question is answered every 9 seconds

I have a York Stellar Plus heat pump -air conditioner. Last

Customer Question

I have a York Stellar Plus heat pump -air conditioner. Last night the heat quit working. I was able to test the ignitor and found it had a resistance of 80 ohms so I don't think it is blown. I can start the furnace by turning of the gas letting it set for 5 minutes and turning off the electricity. I can switch both back on and using a butane ignitor that I use for the bbq and start it. It will then warm the house until it reaches the point set by the thermostat and then shut down. The ignitor is not getting hot. I am sure that some switch is stopping it from heating.
Submitted: 10 months ago.
Category: HVAC
Customer: replied 10 months ago.
The furnace is natural gas.
Expert:  gotoman for ac replied 10 months ago.

Should have flash code that tell you the problem. If you have resistance on the ignitor and it does not glow. It is a bad board that is the problem. Relay inside board that brings on ignitor is bad. Russ

Customer: replied 10 months ago.
The flash is constant with no breaks does that indicate the board is bad.
Customer: replied 10 months ago.
It shows on a flow chart that constant flashing is external to the board. So could it be a transformer? Where is the transformer located and what does it look like.
Expert:  gotoman for ac replied 10 months ago.

You would not have a flash if transformer was bad. What color is the light flashing. Yellow/amber green or red. Russ

Customer: replied 10 months ago.
Red flashing solid with no breaks just continuous flash flash flash
Expert:  gotoman for ac replied 10 months ago.

The ignitor comes off the board. Please take photo of board and attach please.

Customer: replied 10 months ago.
Board is a White Rogers 507E070. It does control the ignitor. So I believe you are correct
Expert:  gotoman for ac replied 10 months ago.

If you have a voltmeter unplug the ignitor. Set meter on 200 volts and turn on furnace to see if you have voltage to ignitor. Russ

Customer: replied 10 months ago.
board is 50e47 sorry
Expert:  gotoman for ac replied 10 months ago.

On board swap TR and TH wires and retry furnace. Russ

Expert:  gotoman for ac replied 10 months ago.

Just trying to rule out board. Russ

Customer: replied 10 months ago.
I replaced the board and it is working properly. Thank you!
Expert:  gotoman for ac replied 10 months ago.

Great job. Thanks Russ

Related HVAC Questions