First I get error 12 then heather will not run when you do the test run the LED light flashes which means the polarity is reversed. Pulled fuse put back in ran test again with results code fuse out, ran test again did not work LED flashing saying polarity is reversed. Not sure how that can be and how to fix that. Please help.
SOURCE: Gas not coming on Carrier Weather Maker 8000
either the gas valve is not opening or your not getting gas to the furnace. also the gas valve won't open unless the draft motor comes on. if the ignitor is trying to light, but there's no gas, it might be a bad gas valve. i would call your closest NATE certified contractor
SOURCE: Carrier Weathermaker SXI Model 58SX8100LG Code 12
Code 12 I believe is power up after power off and a call for heat from the the thermostat. If you have a weak door switch that may be vibrating and going on and off it would cause this as would any thing that causes the power to drop low or out then reapply its self. try holding the door switch in while watching the board and after 2 or 3 minutes the furnace should go on to lite and the blower cycle off. If it stays in this mode try turning the thermostat off (heat - OFF -cool) and then push in the door switch nothing should happen except the lite on the board come on and stay on. If it does this than have someone turn the thermostat to heat and see if it starts or put the door on and set the heat and see if *** goes through the normal cycle of heating. If however it goes right back into the blower mode and shows the 12 code your problem is still with you. So next remove the wire on the "W" terminal on the board. Retry power to the door switch and now nothing should be on except the red lite. If it tries to start the 12 code and blower up again Im pretty sure you have a bad ignition/blower control board.
SOURCE: Carrier Comfort Zone 2 flashing E2
the e2 error on your thermostat is a problem with the return temp sensor on your system, the only thing you can really do is call a company and replace it, you can't bypass it or remove it cause the system wont run properly
SOURCE: Carrier furnace, pilot does not light, fans run
On a call for heat, the 24 volt thermostat sends a signal to the control module. The control module will indicate a call for heat with a light on the control either blinking or remain solid depending upon model. The inducer (exhaust) blower will purge all gasses from the furnace and pressurize a pressure switch. Once the pressure switch tells the module to continue, the electronic ignition will energize and send 120 volts to the igniter. The igniter will glow and you will be able to see it if viewed thru the small inspection port. Once the igniter gets hot enough, it sends a signal to the module opening up the gas valve (24 volts). Either a pilot will come on or the burner tube will ignite then spread the flame to all burners. Lastly a safety sensor will be looking for a certain temperature within a few seconds and the furnace will continue to operate and the room air blower will turn on in a minute or two.
What could go wrong? The unit will not run if there is no signal from the thermostat (bad thermostat or broken wire), the control module does not sense a signal from the thermostat (bad control), the inducer does not energize (bad motor), the pressure switch does not close (blocked vent piping, bad switch, plugged condensate hose), the igniter does not energize (bad control, bad igniter), the gas valve does not open or there is no gas (bad gas valve, broken wire, no gas), the pilot does not light (dirty pilot), the burner does not light (bad burner, plugged orifice, not enough combustion air), the flame does not spread to each burner (bad flame spreader, dirty flame spreader, more bad burners), the flame safety sensor does not detect flame (dirty or bad flame spreader, bad flame sensor, broken wire, bad control), or the room air blower does not energize (bad fan motor, bad control).
SOURCE: ERROR CODE 5 FLASHES CARRIER SPLIT SYST. AIR COND. 42G250HP-1
5 flashing is ' compressor drive' and check the high pressure, condenser fan motor capacitor for proper running
READING CODES
Modes will not switch while the engine is running. The ECM automatically switches to MODE I when the ignition is switchedOFF.
1984-90 Vehicles With Dual LED System
The self-diagnostic system has 5 modes. To switch modes, switch the ignition ON and use a screwdriver to turn the mode select switch through the access port on the ECM. The inspection lights will begin to flash. When the desired mode has been entered, turn the screwdriver fully counterclockwise. The red LED and green LED perform different functions in different modes.
Mode I-
This is the normal vehicle operating mode. The green LED will indicate loop status. If the green LED is not blinking when the engine is running, the vehicle is in open loop, or the HO 2 S, O 2 S, or sensor circuit has a malfunction. If the green LED is blinking, the vehicle is in closed loop. If a malfunction takes place, the red LED and the MIL will glow, indicating a malfunction has occurred.
Mode II-
Both the red LED and green LED are used to monitor mixture ratio feedback control. The green LED will function as described in MODE I. If vehicle is in open loop, the red LED and green LED will remain on or off. In order for results to be valid, vehicle must be in closed loop. In closed loop, the red LED remains off if the system is running rich, comes on if the system is running lean, and blinks at the same time with the green LED if system is within 5% of the exact air/fuel ratio.
Mode III
-When this mode is accessed, the codes stored in the ECM's memory will be flashed by the green LED and red LED on the side of the ECM. The red LED will light first. This is the first digit of the trouble code; the green LED will flash next, showing the second digit of the code. For example: 2 flashes of the red LED followed by 1 flash of the green LED corresponds to Code 21.
Mode IV-
This mode is used for checking the throttle plate (TP) switch, starter, and vehicle speed switch status. When the TP switch or starter switch is activated, the red LED will briefly flash as the status changes. For VSS status, the green LED will remain off when vehicle speed is less than 12 mph (19 km/h) and come on when vehicle speed is greater than 12 mph (19 km/h).
Mode V-
This mode represents a real-time diagnostic test of the crank angle sensor, ignition signal and the mass airflow signal. The malfunction code will be displayed only when the malfunction occurs and will not be stored in memory. The output code will appear as a single or short string of pulses. Count the number of pulses for the malfunction code.
1 pulse-CMP sensor signal lost or noise in signal
2 pulses-MAF Sensor signal abnormal
3 pulses-Fuel pump circuit shorted or open
4 pulses-Ignition signal lost
Hello,
Try the following action to resovle your issue:
1. Run the Drive Assessment Test in HP StorageWorks Library and Tape Tools.
CAUTION: Running the Drive Assessment Test overwrites the tape. If it is not possible to
overwrite the tape, run the logs-based Device Analysis Test instead.
2. Check the backup logs.
3. Verify that a supported configuration is being used.
4. Check for media damage:
o Incorrect label placement
o Broken, missing, or loose leader pin
o Damaged cartridge seam
o Usage in incorrect environment
5. Check for software issues:
a. Check the backup software.
b. Check that virus scanning software is not scheduled to run at the same time as the back-up.
6. Verify that a tape can be formatted.
Tape Error LED is flashing:
1. Reload the suspect tape. If the Tape Error LED stops flashing, the problem has cleared.
2. Load a new or known good tape. If the Tape Error LED stops flashing, the problem has cleared.
3. Reload the suspect tape. If the Tape Error LED flashes, discard the suspect media as faulty.
From my experience, most of the time it is a bad tape, using a new tape usually solves the problem. If after inserting a new tape and the problem exist, you may need to update your firmware/backup software.
Good Luck
C2Solutions
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