flame - no call for heat


  #1  
Old 01-15-19, 10:10 AM
H
Member
Thread Starter
Join Date: Jan 2019
Location: United States
Posts: 5
Upvotes: 0
Received 0 Upvotes on 0 Posts
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
 
  #2  
Old 01-15-19, 10:17 AM
user 10's Avatar
Member
Join Date: Mar 2004
Location: NA
Posts: 1,829
Received 57 Upvotes on 50 Posts
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.
 
  #3  
Old 01-15-19, 04:33 PM
H
Member
Thread Starter
Join Date: Jan 2019
Location: United States
Posts: 5
Upvotes: 0
Received 0 Upvotes on 0 Posts
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  
Old 01-15-19, 05:09 PM
PJmax's Avatar
Group Moderator
Join Date: Oct 2012
Location: Jersey
Posts: 65,100
Received 3,982 Upvotes on 3,574 Posts
If the flame sensor is good and not shorted..... the control board is bad.
Nothing else will cause that error.
 
  #5  
Old 01-16-19, 05:05 AM
H
Member
Thread Starter
Join Date: Jan 2019
Location: United States
Posts: 5
Upvotes: 0
Received 0 Upvotes on 0 Posts
ok. I ordered the board. I will let you know after I replace it
 
  #6  
Old 01-19-19, 05:06 AM
H
Member
Thread Starter
Join Date: Jan 2019
Location: United States
Posts: 5
Upvotes: 0
Received 0 Upvotes on 0 Posts
changed the board and looks working fine so far. the blower starts after a few seconds of flame ignited, is that normal or a problem? thanks
 
  #7  
Old 01-19-19, 12:05 PM
PJmax's Avatar
Group Moderator
Join Date: Oct 2012
Location: Jersey
Posts: 65,100
Received 3,982 Upvotes on 3,574 Posts
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.
 
  #8  
Old 01-21-19, 03:36 AM
H
Member
Thread Starter
Join Date: Jan 2019
Location: United States
Posts: 5
Upvotes: 0
Received 0 Upvotes on 0 Posts
sounds like my board is working well then. the blower is started after about 30 sec of flame on. the board I bought is 50A55-843. thanks
 
  #9  
Old 01-21-19, 10:09 AM
PJmax's Avatar
Group Moderator
Join Date: Oct 2012
Location: Jersey
Posts: 65,100
Received 3,982 Upvotes on 3,574 Posts
Heat delay to blower on is selectable: 30 - 45 seconds
Heat delay to blower off is selectable: 60 - 90 -120 - 180 seconds
 
 

Thread Tools
Search this Thread
 
Ask a Question
Question Title:
Description:
Your question will be posted in: