flame - no call for heat
#1
01-15-19, 10:10 AM
flame - no call for heat
my Amana 80 SSE blows cold air all the time, even set the thermostat at off. error code says "flame - no call for heat". if I turn the furnace power off, and then back on, the furnace worked fine once a day. the furnace will not be ignited until next day once it is off. I changed the air filters and checked several parts including thermostat, no problem was found. any help or suggestions? thanks
KH
KH
#2
01-15-19, 10:17 AM
Member
with power off, check resistance between the flame rod and the cabinet. multi-meter required.
if your meter shows open line, the circuit board is bad. if it reads a resistance, the flame sensor or wire is damaged and there's a path to ground.
if your meter shows open line, the circuit board is bad. if it reads a resistance, the flame sensor or wire is damaged and there's a path to ground.
#3
01-15-19, 04:33 PM
I have bought and changed the flame sensor. I also changed thermostat with one that was known working. it can be ignited once a day. when I tried within hours after it was off, the ignitor would glow for a few seconds, but would be off before igniting.
#4
01-15-19, 05:09 PM
Group Moderator
If the flame sensor is good and not shorted..... the control board is bad.
Nothing else will cause that error.
Nothing else will cause that error.
#7
01-19-19, 12:05 PM
Group Moderator
Every control is different. Most start the blower 30-60 seconds after the burner lights. I'd rather it start earlier than later. If you post the part number of the control board I could check the details.
#9
01-21-19, 10:09 AM
Group Moderator
Heat delay to blower on is selectable: 30 - 45 seconds
Heat delay to blower off is selectable: 60 - 90 -120 - 180 seconds
Heat delay to blower off is selectable: 60 - 90 -120 - 180 seconds
