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Carrier 40MVC A/C Flahing LED

When i turn on the A/C the power on LED starts flashing (2 consecutive flashes every 3 sec.) & no air is coming from it.

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There is problem with the unit. the 2 flash codes indicates a problem.

i am just not sure what it is.

it could be a low voltage alarm,
a high voltage alarm
freezing evaporator alarm.
not cooling alarm.

reset it by un pluging the unit for 1 minute then plug it back and run it. observe if the compressor would start.
if it start, check if it is cooling,

if it starts to cool, check the coil of the evaporator if it is freezing..

you could trace from there what is wrong with the unit.

pls keep me posted..

kindly use the ask me button,

tnx 4 using fixya,

drcool

Posted on Sep 06, 2008

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Posted on Jan 02, 2017

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My carrier ac if i on the unit it will show green light 9 times blinking after off then 2 sec on green light again 9 times unit is not working


You have to try resetting the system. First turn the breaker off for the condenser and wait about 20 seconds. After you turn it back on the system should reset. If that dosn't work then you should contact a professional.

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Panasonic air con - when you turn the air con on it runs for about 3 mins and then the timer light flashes. Air con will not work.


• Once abnormality has occurred during operation, the unit
will stop its operation, and Timer LEDs blink.
• Although Timer LED goes off when power supply is turned
off, if the unit is operated under a breakdown condition, the
LED will light up again.
• In operation after breakdown repair, the Timer LED will no
more blink. The last error code (abnormality) will be stored in
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• To make a diagnosis:
1. Timer LED start to blink and the unit automatically
stops the operation.
2. Press the CHECK button on the remote controller
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3. "- -" will be displayed on the remote controller display.
Note: Display only for "- -". (No transmitting signal, no
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5. Every press of the button (up or down) will increase
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6. When the latest abnormality code on the main unit
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a beep sound (continuously for 4 seconds) will be
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7. The breakdown diagnosis mode will be canceled by
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onds or without any operation the remote control for
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8. The LED will be off if the unit is turned off or the
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When you have the error code, we can work out what to do next.

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1 Answer

Flashing cf after carrier ac turns off


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.

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1 Answer

Coleman 15k will not come on


Here is the troubleshooting guide for your unit. Hope this helps.

TROUBLE SHOOTING GUIDE
TROUBLESHOOTING
Symptom Remedy
1. Remote does not turn on system
- Check and replace remote batteries if the display fades while
any button is activated or no display is present. - Point remote towards IR receiver during transmission. 2. System does not turn on, no green LED & no beep
- Check wiring. (see "installation instruction")
- Check modular cable to receiver.
- Check diagnostic LED status in the upper unit control box.
3. System does not turn on even when receiver green LED is on.
- Low or over voltage condition, check diagnostic LED status in the upper unit control box.

4. Fan runs but no cold air.
- Evaporator temperature sensor reaches low limit, defrost mode.
- Check diagnostic LED status in the upper unit control box.
5. System runs continuously in the cool mode
- Remote was set for "I feel" mode and is left in a heated environment (sun etc.)
6. System runs continuously in the heat mode
- Remote was set for "I feel" mode and is left in a cool environment

1. Diagnostic LED (green)
(Note: Located on the control board in the upper unit control box.)
a) The LED is on when the 12VDC is adequate and communications are
present.
b) The LED is flashing fast and steady when in the freeze mode. Evaporator has frozen and the freeze proctection switch is engaged.
c) The LED is flashing slow and steady when the delay on break timer is
activated.
d) The LED is flashing 1 cycle on and off for one second with high or low
12VDC. Check the incoming 12VDC power for OK.
e) The LED is flashing 2 cycles on and off for one second with a
communication problem. Problem with the control board in the unit and the remote.

Hope this helps.

Jeff

Rate me Please!!!

Jul 29, 2008 | Coleman Mach 15 Air Conditioner

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