Carrier Heating & Cooling - Page 4 - Recent Questions, Troubleshooting & Support

if power to unit check start up capacitors on fan motor

Switch OFF the circuit breaker of ac, after 5 seconds. Switched ON the circuit breaker. If this will appear again try to check the wiring connection of ac.

check start up capacitors if ok motor overheating

E4 means return air sensor error, if the error cannot reset may be the return air sensor is out of range or defective. But if the sensor is ok you need to replace the control board itself. The reading of return air sensor is 8k to 10k ohms @ 25deg. C temperature.

AC FR means Four- bed room with ac. https://www.tripadvisor.in/FAQ_Answers-g503703-d666589-t4377077-NON_AC_DR_S_NON_AC_DR_B_AC_FR_NON_AC.html https://www.facebook.com/2096661483894455/posts/carrier-window-type-error-code-fr-cleaned-and-re-tight-harness-ok-at-quiling-sur/2612752002285398/

Well without a model number, I can tell you this. On some models, F3 indicates fan speed 3, which is high speed.If you push the mode button, these units will switch between f1, f2, f3 and smart fan. No problem. On others, F3 indicates a fan speed error, either something is keeping the fan from turning, or there is a bad or loose connection somewhere. On still other models, F3 indicates a freon leak or problem in the refrigerant circuit. If carrier made their own units, they would probably act the same, but they don't. Model number is important, since the unit could be a daikin, LG or Samsung under the skin...

Error Code Definition: (Unit Size 36K - 42K) = IPM over temperature protection. Carrier AC Indoor Unit Displays Error Code: P9. Error Code Definition: (Unit Size 18K - 24K - 30K) = NA. Error Code Definition: (Unit Size 36K - 42K) = Open Contactor. https://removeandreplace.com/2017/08/11/carrier-split-system-air-conditioner-error-codes-and-troubleshooting/ https://www.youtube.com/watch?v=M-fLGOYL84Y

FF code means blown or missing damper fuse. Replace damper fuse (inside equipment cover plate) and try again. If damper fuse blows again, find and fix the problem causing the fuse to blow.

-When a blinking light problem occurs, your air conditioning system often shuts off too, meaning warm air is blown. You can switch off the circuit breaker of your AC unit, wait for a few seconds, and then switch it on again. For some, the unit will start working normally again. http://www.ehomeservices.com.sg/articles/how-to-solve-air-conditioner-light-blinking-problem.html

https://www.youtube.com/watch?v=lg9jR_io6js

possible stat failure

How to open carrier split ac remote clock

Typically two pressure sensors determine the presence of adequate draft. Could be defective sensor, draft motor, control board, or obstruction in vent.

Here is an Article that I found that has some useful information for you. http://airmaster.net/troubleshooting/carrier-window-room-air-conditioner-troubleshooting CF means Cooling Fail. Check us out online at AC Services Boca Raton

Do you have the model number/serial number?

do you have a remote control? from there click mode until it is on heting

No.replace thermostat

It does not appear to be. The z-wave has a site that you can check, Neither carrier or z-wave show your model as being compliant. The industry is in a big dispute right now over protocols on home automation standards and it could be worth waiting it out..

Was the problem solved..
I am facing the same problem for last 8 months
But the technician is not able to solve it..
They don't even know what bL code is for

Please let me know if u were able to solve this problem.