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Did anything else lose power in house?
Everything else is fine
Checked all breakers inside and outside as well
Do you have a multi meter to check voltage?
Can you do some hands on troubleshooting
if it's not complicated...yes
What is the model on your indoor furnace or air handler?
hold on and I'll get it
Frigidaire 4 Ton Air Handler B3BV-048K-BB
Now first, have you tried to reset the thermsat by pressing the reset button inside?
i didnt see a rest button
Ok lets start there
Remove front cover
Look just below the FAN switch
Do you see a button?
hold on need to check the computers in the other room
Should be a little button just below fan switch
just the two slide switches
fan and heat/cool/emer
nothing below them
just ABOVE them theres a little sliding switch
See if you are able to open this file and tell me if this is your thermostat.
This is a small button, mayrequire using a straightened paperclip or simialr
just found very tiny pushbutton switch under the fan switch
was able to press it
Did it reset?
is there some special sequence?
Then we have probably lost power in the air handler somewhere.
or does it need to be pressed and held?
It should just press onnce
Lets try one more thing before we go to air handler
Remove the R and G wire from thermostat and touch them together to see if fan comes on
ok...jumped across the terminals and nothing
We have lost power in air handelr
Can you open air handler?
top or bottom part
ok ill do it
OK cover off
In the RED control wire from transformer to thermostat you should find a fuse like one of these two.If inline,you will have to open the plastic fuse holder to get to the fuse,We want to see if fuse is bllown.
OK i see the plastic plug-type fuse on the circuit card to the left of the main power wires
Is that it?
Should be .Check that fuse
ok...i need to find some pliers to grab it...its awfully close to the hot wires
Turn power OFF while checking the fuse so you feel more safe
got it out...fuse is good
Next is going to be to check the fuses that supply power to the furnace down where power comes in
You need a meter to check them
so bottom cover off?
WEhere does power come in? Do you see the high voltage coming into unit?
yeah...i don't have one. i have an HVAC guy on the way, but at least he'll know where to start
You may have circuit breakers instead of fuses
i can check
i can see where the 240 comes in but i cant get to it
and there doesnt appear to be any fuses or breakers
Do you see any breakers on the unit iteself?
could they be in a box away from it?
How about a dsiconnect on wall right beside unit?
Maybe on wall right beside unit
main power appears to come down from attic
Installer should have put a service disconnect by unit, but that is irrevellant to the problem
could it be outside by the compressor?
THere will be one thr, but not controlling air handler
It should come from main panel
checked all the main breakers
Somewhere we have lost power
inside and outside
the hvac people are saying the transformer
Either high voltage feeding transformer, the trasformer itself, or in low voltage between transformer and thermostat
oh well itll be up to them now
but thanks for all the good help
im very satisfied
Has anything taken place such as construction or yard work around outdoor unit or anything where a wire could have gotten nicked or shorted
no...and the unit was working a few hours ago
there really arent any exposed wires outside
and nothing the lawn guy couldve nicked
It is just highly unusual for transformer to blow unless there is a short, whci means, you need to have them find why (if it is blown)
power surge maybe?
Like you say, from here. a meter is going to be necessary
well, thanks a million for your help
A power surge can do it, but usually their are other signs
Thanks for allowing me to work with you
ill go click "Accept" now
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great...will do. thanks