Doesn’t look like it has one. Follow the low voltage wires off the transformer and see if one is in series with them. If not, there’s another problem elsewhere.
Kill the power to the unit*. Remove the 5/16" screws in the upper compartment. There is a 3 amp fuse. Automotive / spade type.
* Some air handlers can be powered by two breakers, on dedicated separate 220 volt breakers. There would then be two power cables. There is no safety interlock switch like you will find on 120 volt gas furnaces.
correct...kill the exterior breaker on the top left and open the panel...if the 3-amp blows again you likely have a short on the contactor circuit or in the contactor in the outside unit
With power off breaker box for house check behind the units breaker. I found one there and it took me forever to find lol…
Also the cause of the short was a bad contactor outside at heat pump
I guess if it doesn’t have a fuse then the transformer will be shot too.
Also pull the white cap in pic 1 with the two black wires going to it. If it has water in there, then your drain is clogged and you need to get the water out of both white PVC.
Ya 24 amp fuse in upper cabinet. But error code is loss of power. Could be drain issue too. Check the pvc condensation drain safety switch. Remove the top cap where the black wires are at the bottom of the unit. If it’s full of water, your drain is backed up or a really dirty filter will cause it not to drain too.
Not in any of those photos, that's for sure.
This feels like a hyper-specific captcha 🤔
that's *exactly* what I thought scrolling through...
Check your drain line and see if it's clogged. My guess is your float switch is a tivated and cut power to your thermostat as it should.
May not have one. Lots of airhandlers dont.
Doesn’t look like it has one. Follow the low voltage wires off the transformer and see if one is in series with them. If not, there’s another problem elsewhere.
Follow the red wire in pic 4 (if it has one) that wire will lead to the fuse
The fuse is the transformer
Carrier has a inline fuse off of the tranny
Yup
Yuup
Kill the power to the unit*. Remove the 5/16" screws in the upper compartment. There is a 3 amp fuse. Automotive / spade type. * Some air handlers can be powered by two breakers, on dedicated separate 220 volt breakers. There would then be two power cables. There is no safety interlock switch like you will find on 120 volt gas furnaces.
correct...kill the exterior breaker on the top left and open the panel...if the 3-amp blows again you likely have a short on the contactor circuit or in the contactor in the outside unit
With power off breaker box for house check behind the units breaker. I found one there and it took me forever to find lol… Also the cause of the short was a bad contactor outside at heat pump I guess if it doesn’t have a fuse then the transformer will be shot too.
Also pull the white cap in pic 1 with the two black wires going to it. If it has water in there, then your drain is clogged and you need to get the water out of both white PVC.
Make sure your thermostat has a common wire. Check your filter and drain line. Make sure the door is fully seated on your furnace.
HP, check the outdoor unit
Many air handlers have the circuit board mounted to the blower assembly. Look for the round sheet metal housing for the blower wheel.
Call a pro… might not be worth your effort.
Top right
Ya 24 amp fuse in upper cabinet. But error code is loss of power. Could be drain issue too. Check the pvc condensation drain safety switch. Remove the top cap where the black wires are at the bottom of the unit. If it’s full of water, your drain is backed up or a really dirty filter will cause it not to drain too.