E5 flashing on thermostat. System will not work. Unit underneath checked out okay

Change capacitor motor and outdur working almost
But 3 minute working ok
After E5 error show display screen on indur with outdour fan stop but compressor sound

freeze sensor locks out compressor. faulty sensor or cable sensing it.

Maybe the surge capacitor on the fan or fan motor is faulty?

e5- Remote control transmission error. Check wire correctly. Touch one of each of thevoltmeter probes to the terminals marked "R" and "C," tocheck for 24 volts of alternating current (24 VAC). If you do not get a voltagereading of 24 VAC, then the thermostat is not getting power. Reset the circuitbreaker, or check for a blown fuse, and replace if need. Use the voltmeter torecheck for 24 VAC between the terminals. If the thermostat still lacks power,check and reset any tripped condensate float switches. Check the power switchon the HVAC equipment and set to the "On" position, if necessary.Replace any broken wires and tighten any loose wire connections to restorepower to the thermostat.Wait five minutes and allow the system to respond.Thanks.

E5 Outdoor activation of compressor over heatprotection or motor lock
Check condenser coil. If dust blocked-clean it.
Check out door fan motor is working. If not replace capacitor or motor.
Check compressor-gradually amps increasing-replace capacitor.
Check for gas pressure. No gas also gives over heat compressor.- Leak test and rectify.

E5 Communication error between outdoor and indoor

Comms Error, check your wiring, remove external pumps. Split/Multi - check volts from terminal N to 3 = 0 - 65 Vdc, Multi V - 4 Vdc terminals 3 and 4

Helpful?

E5 Outdoor activation of compressor over heatprotection or motor lock
or E5Communication error between outdoor and indoor.

Please check input of out door unit and contacor coil energized. if no power input correct it. If no power in contator coil, mat be the problem PcB thermostat command. Check your setting is 23 dgree and less than that and also mode in "Heat".

Check float switch. E5 is loss of 24 volt power on some models.Russ

Ok what you need to do is call your local service company and have a technician come out and check your Thermostat, its currently not able to read humidity probably due to a power surge

I have the same error on my U-Line beverage refrigerator. U-Line said the error indicates the thermostat was out of range for over 12 hours (perhaps due to a recent power outage). My fridge seems to be working just fine so I am not planning on calling a technician until something more serious breaks down.