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I have a 50a50-142 it cycles the hot surface igniter on a…

Customer Question
I have a white...

I have a white rogers 50a50-142 it cycles the hot surface igniter on a few times then flashes a 4 flash code

Contractor's Assistant: I'll do all I can to help. How long have you been dealing with this?

Couple days

Contractor's Assistant: Do you plan on doing the work yourself?

Yes ... I cleaned the flame sensor and it worked last night but this morning was back to not working so I started checking it when I got home from work

Contractor's Assistant: Anything else we should know to help you best?

If I unplug the molex connector or turn the power off at the breaker it will sometimes light run for a few min then fault out again

Submitted: 4 months ago.Category: HVAC
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Customer reply replied 4 months ago
looking at the wiring diagram and the flash codes it would appear to be limit switch issue. id this a cleanable item like the flame sensor? or is it a replace it ?
Answered in 2 hours by:
3/28/2018
HVAC Technician: gotoman for ac, HVAC Technician replied 4 months ago
gotoman for ac
gotoman for ac, HVAC Technician
Category: HVAC
Satisfied Customers: 5,358
Experience: 51 years of experience install design and repair of all makes and models of AC
Verified

Russ here. How is filter I furnace. What is model umber of furnace.

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HVAC Technician: gotoman for ac, HVAC Technician replied 4 months ago

Something causing the furnace to overheat. Filters o possible bad limit. Russ

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