american standard freedom 90 comfort-r maintenance, mine isn't working (PICS)
my unit over the last few months started to blow cold air instead of hot sometimes.
this got more and more frequent.
now it only blows cold air.
I tried to find a manual online but had no luck.
What parts of the unit should I try cleaning and where are they?
I read something about the flame sensor with a steel scrub, but not sure that applies to my unit.
pics included below.
Turn it back on and let it cycle. That board has diagnostic lights. Just read the flash count. Also some were on blower door is wire diagram. It will have the codes for the lights
the second area is the condensate trap and the lines leading to it. the lines and trap should be removed and cleaned with a hot water and bleach solution, these lines are prone to fungal growth, the bleach will kill it. Of course keep your filters maintained, cant tell from the photos what kind of filters you use.
here is what happens when i turn this thing on
video might take a few minutes for youtube to convert, looks to me like red light flashes twice, spaced by three seconds
repeat 3 times.
thanks for all help everyone
is there a ledgend any were on the back side of the furnace doors that say what those sequence of flashes means?
2 flashes is system lockout (page 39). It almost looks like the light came on before the door switch was depressed.
excuse my ignorance but this is the first time I have ever looked inside of a heating unit.
where should I looked for this flame sensor? I just cant seem to figure it out
can someone isolate it by the numbers I have posted on the picture, which number it is closed to?
also does the flame sensor look like picture 2?
behind the burner door at the toop of the furnace........were the little round window is......sounded in that video like its full of condensate.....may be a plugged trap
this is the air filter i think
A few weeks ago i found the manual for that and took a long time cleaning it
im pretty sure that thing is clean
It does sound like water is moving around. Should be 3 flashes. Power off for more than 30 seconds to reset and try again.
RED LED - LitePort
TM DATA - 1 FLASH EVERY 20 SECONDS
2 Flashes --- RETRIES OR RECYCLES EXCEEDED
3 Flashes --- INDUCER OR PRESSURE SWITCH ERROR
4 Flashes --- OPEN LIMIT OR ROLLOUT SWITCH
5 Flashes --- FLAME SENSED WHEN NO FLAME SHOULD BE PRESENT
6 Flashes --- LINE REVERSE POLARITY
7 Flashes --- GAS VALVE CIRCUIT ERROR
8 Flashes --- WEAK FLAME
9 Flashes --- OPEN INDUCER LIMIT ERROR
GREEN LED - STATUS
Slow Flash NORMAL, NO CALL FOR HEAT
Fast Flash NORMAL, CALL FOR HEAT PRESENT
GREEN and RED
LED's on Continuously FUSE OPEN OR INTERNAL CONTROL FAILURE
i think you guys found problem!
the water pump thing looks disgusting
clogged with mould and stuff and definitely not moving any water out there
makes a bad noise too
what do I do? disconnect it, take it out the garden, try pull it apart, clean it, reassemble and put back in basement?
is this below picture where i get to the flame sensor?
I remove the three screws to get under that cover with the glass portal, then find the flame sensor, and clean it?
There is a 1/4 screw undo that and wire to sensor and pull. Make sure remember how u got it out. It can be hard put back in for the first time
Definitely clean that condensate pump. They usually have 2 screws to separate the pan frm the top portion.
I was referring to the ptrap (number 11) in your picture as the water problem.
ok well i cleaned everything, and still no luck
cleaned all the water parts
cleaned the flame sensor
still 2 red lights
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