INDOOR UNIT AST24PBA , OUTDOOR UNIT AOT24PMAL. Out door unit seems to have a rattle on start up and cylce change.indoor unit has a vibration while running and a very dirty/clogged fan . Suspect vibration is from fan ? Need to remove and clean or remove horizontal/vertical flow direction blades to gain access to clean the fan. Dont want to attempt any disassembly without adequate information. can you help.
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It's possible you have a bad data wire on one of the systems. Swap the data wire or both if two with a different wire. (1&4--2&3) whatever. Whatever you do inside obviously do outside. Might have extra resistamce that is throwing the error but will be fine for a ground wire.Or do one system at a time, being sure to change your dip switch settings until you figure out the problem unit. Good Luck!!
La Crosse is very specific about what you should do and how you should do it for a battery replacement.
Begin by removing all batteries, both outdoor and indoor. Install new batteries in the outdoor unit. Allow the time it takes to get from the outside to the inside for the outside unit to initialize and begin sending data. Install batteries in the indoor unit and observe outdoor temperature. You should see indoor temperature as well. Finally, set the time. This last can be tricky as it seems difficult to set an exact time. I have two different La Crosse receivers connected to one transmitter and the one in front of me now is indicating 70 deg F indoors and 80 deg F outdoors.
In systems with an outdoor transmitter and an indoor receiver, the usual battery replacement procedure is to start with the outdoor transmitter first, allow time for it to start sending data, then install the replacement batteries in the indoor unit. You should see the outdoor temperature being displayed.
The outdoor power unit failure(where indoor/outdoor power supplies are separated)
Indoor/outdoor communicationerror- Check power to out door- If not, in door PCB defective. Replace it.
A and B wiring reversed afterpower on-Rectify.
P8-Abnormality in outdoor unit. 1.Wrong wiring of indoor/outdoor connecting wire.......................Check the indoor/outdoor connecting wire. 2) Reversed phase......Change the connection of electric wiring. 3) Protection device is working........ Check the protection device.(LP,HP) 4) Damaged outdoor coil thermistor.....Measure the resistance of the outdoor coil thermistor.If the resistance is normal, replace the outdoor controller board. 5) Check out door coil is cleaned. If not do it. thanks.
Test the capasitor in the compressor unit there it could be bad or the compressor froze up.
there is a clicks on over load device inside the plastic box on the side of the compressor some
times they go bad too.
THE OUTDOOR UNIT HAS A CONTACTOR WITH THE CONTACTS WELDED TOGETHER THE CONTACTOR CONNECTS TO THE COMPRESSOR AS IT TYPICALLY PULLS A SURGE OF 20 -30 AMPS OR MORE..WITH THE INDOOR UNIT IN FAN ONLY THE COMPRESSOR SHOULD NOT BE RUNNING. THE CONTROL WIRES GOING TO THE UNIT HAVE 24 VOLTS TO THE CONTACTOR TO PULL IN THE CONTACTS TO SUPPLY 220 TO COMPRESSOR.
This is a signal fault between the indoor and outdoor first make sure the dip switches are set start with the unit closest to the condensor set as unit 1 then next unit as 2 and so on the dip switches are inside the indoor unit on the pc board if you check the manual it will tell you which swithes to set, if this wasnt done when the units where installed they would have never worked i would also check the signal wiring between the wallmount and the splitter box / bc box and make sure there isnt a loose connection when you have ruled this out id say more than likely it is a faulty indoor board on the wallmounted unt