Bryant 394JAZ has no sparkle at igniter - http://www.hvacmechanic.com/ Forums

Original message

hiker

69.107.71.102

"Bryant 394JAZ has no sparkle at igniter" , posted Fri 2 Feb 02:12

My Furnace first had a problem with the fan running continuously. I replaced the limit control switch and it worked again for about two days then not working anymore. This time, I don't see sparkling at the igniter when the furnace is turned on.

I replaced the old circuit board (CESO110018) to a new one (ICM271) but I still don't see any sparkling at the igniter.

I checked the terminals R and W on the circuit board, they are close when the thermostat "calls for heat".

Do I have a bad igniter or a bad ignition control board? How I can isolate it?

Replies:

benleo56

72.192.180.8

"Re(1):Bryant 394JAZ has no sparkle at igniter" , posted Sun 9 Dec 13:46

I have the same problem with two Carrier Day & Night that have 394jaz in their product and model ids.

Have replaced the HBC Igniter/Lockout Control 2-3 times but keeps happening.

Have you solved your problem? If so what did you do to solve it?

Thanks for sharing this info.

Benleo56

acefurnacefxr

70.226.8.179

"Re(1):Bryant 394JAZ has no sparkle at igniter" , posted Fri 2 Feb 11:03

LOL............check the limit .........if its open again, you better start concentrating on whats making that limit open.Lack of air flow from a dirty filter, plugged evaporator coil, or secondary heat exchanger.

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hiker

69.107.71.102

"Re(2):Bryant 394JAZ has no sparkle at igniter" , posted Mon 5 Feb 23:42

Thanks for your suggestion. It turned out to be a bad connection at the terminal 4 of the Gas Valve. Thanks again.

hiker