Carrier XHB123D X/Y Series Heat/Cool Air Conditioner Logo
Posted on May 11, 2008

Curtailment active The first time we turned on the AC mode on a new Infinity system the control panel said CURTAILMENT ACTIVE.  Don't know what that means but i do know that the AC won't cool AT ALL!!!  All winter the system worked perfectly in heat mode.  Now nothing in AC mode.  What's up? Thanks for any help you might be able to provide. Wilting in SC

  • Anonymous May 19, 2009

    I had this same problem and the fix above worked. Thanks

×

2 Answers

A

Anonymous

A follow-up to my previous post. I talked with a technician from the Co that installed my unit, and the issue lies in the "Utility saver mode" for the 2 stage heat pumps, and having the high stage locked out. In the Advanced Setup menu (hold the "Advanced" button for 10 seconds to access this menu, look for the "Utility Saver" menu item. Select it and your system probably shows that "Utility Saver" is enabled, which only allows your heat pump to run on the low stage and not the high stage. If you change the the setting to be disabled, this will allow your system to run at the high stage and should solve your problem.

I have not changed the settings on my system yet to confirm this solution. That will have to wait until I get home this evening.

  • Samuel S WALTERS
    Samuel S WALTERS Jun 07, 2011

    THANKS! It was 92 in Minneapolis today and it got up to 89 inside the house before I found this post which solved my problem immediately.
    So sad that the manufacturer's web site had nothing about this.

×

A

Anonymous

I have the same problem and have only found indicators of the cause but no solutions.

From an installation manual found online at: http://www.carrierwest.com/PDF/Operation_Service/24ana-3si.pdf

I discovered this note on page 9:

Utility Interface
With Infinity Control
The utility curtailment relay should be wired between R and Y2
connections on the control board for Infinity Communicating
Systems only (see Fig. 9.) This input allows a power utility
device to interrupt compressor operation during peak load
periods. When the utility sends a signal to shut the system down,
the User Interface will display, “Curtailment Active”.

Ad

Add Your Answer

×

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

0helpful
1answer

2004 chevy 5.3 replaced selector switch on dash will not work have change selector switch and encoder motor on transfer case ,IS THERE a way I can test TCCM

If you had a factory or professional scan tool , check for DTC'S - diagnostic trouble codes . Rather then guessing an replacing parts . What model chevy ? Silverado

Looking up an reading how it's suppose to work , checking code's , view wiring diagrams an checking electrical circuit's with a DVOM - digital volt ohmmeter . An finding out which transfer case it has .
Transfer Case - NVG 149-NP3
Transfer Case - NVG 246-NP8
Transfer Case - NVG 261-NP2
Transfer Case - NVG 263-NP1
The New Venture Gear model NVG 246 RPO NP8 transfer case is a two speed automatic, active, transfer case. The NVG 246 EAU provides 5 modes, Auto 4WD, 4HI, 4LO, 2HI and Neutral. The Auto 4WD position allows the capability of an active transfer case, which provides the benefits of on-demand torque biasing wet clutch and easy vehicle tuning through software calibrations. The software calibrations allow more features such as flexible adapt ready position and clutch preload torque levels. The technology allows for vehicle speed dependent clutch torque levels to enhance the performance of the system. For example, the system is calibrated to provide 0-5 ft lb of clutch torque during low speed, low engine torque operation, and predetermined higher torque for 40 km/h (25 mph) and greater. This prevents crow-hop and binding at low speeds and provides higher torque biases at higher vehicle speeds, in order to enhance stability.

The NVG 246 EAU transfer case features a 4 button shift control switch located on the instrument panel. When the ignition key is in the RUN position, the transfer case shift control module monitors the transfer case shift control switch to determine if the driver desires a new mode/range position. At a single press of the transfer case shift control switch, the lamp of the new desired position will begin flashing to inform the driver that the transfer case shift control module has received the request for a new mode/range position. The lamp will continue to flash until all shifting criteria has been met and the new mode/range position has been reached, or has been engaged. Once the new mode/range position is fully active, the switch indicator lamp for the new position will remain ON constantly.

The NVG 263 transfer case features a three button shift control switch located on the instrument panel. When the ignition is in the RUN position, the transfer case shift control module (TCCM) starts monitoring the transfer case shift control switch to determine if the driver desires a new mode/gear position. At a single press of the transfer case shift control switch, the lamp of the new desired position begins flashing to inform the driver that the TCCM has received the request for a new mode/gear position. The lamp continues to flash until all shifting criteria has been met and the new mode/gear position has been engaged. Once the new mode/gear position is fully active, the switch indicator for the new position remains ON constantly. In the event that the TCCM can not or will not complete the shift, the indicator returns to the previously selected position; this is a Transfer Case Shift Control Switch Indicator Flashes, then Returns to Previous Mode condition.

DTC B0790
DTC B2725
DTC C0306
DTC C0327
DTC C0359
DTC C0379
DTC C0550

DTC B0790
The neutral indicator circuit consists of an ignition 3 voltage circuit and a neutral indicator control circuit. When the neutral mode has been selected by the driver, current is supplied to the neutral indicator by the ignition 3 voltage circuit, traveling through the neutral indicator LED at which time the transfer case shift control module supplies the ground through the neutral indicator control circuit. This DTC detects an open, short to ground or a short to voltage.
DTC B2725
ircuit Description
The range/mode switch circuit consists of 4 modes. The transfer case shift control module supplies 5 volts to the switch through the 5 volt reference circuit. The current travel through the resistor of the currently active mode. The current is then returned to the transfer case shift control module through the switch signal circuit.
The transfer case shift control module constantly monitors this signal voltage to determine the condition of the mode switch circuit.
When each of the modes are selected they complete a circuit through their own specific resistor. The transfer case shift control module continuously monitors the switch input to determine whether the Neutral, 2HI, 4HI, or 4LO mode was selected by the driver.
A lot involved in these 4X4 systems , Your best bet ,take it to a qualified repair shop. You obviously have no idea on how this works , code setting capability ,how to test electrical circuits etc...
0helpful
1answer

2007 ford escape 4 wheel drive sensor schematics

You'll need more then that , you'll also need a professional scan tool to check for code's in the 4X4 control module . You have no clue how this system works , do yourself a favor an take it to a qualified repair shop.
Four Wheel Drive (4WD) Systems The 4WD system consists of a power take off unit (PTU), rear driveshaft, coupling device control module (4WD control module) and a rear axle with coupling device.
4WD Indicator Light 4WD - Illuminates continuously when the 4WD system is locked in 4WD due to its heat protection mode. In the locked mode, the vehicle resists turning and binds up when driven on dry pavement. To exit the locked mode, stop the vehicle and allow it to cool for 5 minutes with the engine running. When the 4WD indicator turns OFF, normal 4WD system function is restored.
4WD - Blinks continuously when the 4WD system is disabled due to its heat protection mode. To exit the disabled mode, stop the vehicle and allow it to cool for 5 minutes with the engine running. When the indicator turns OFF, normal 4WD system function is restored.
4WD - Blinks 3, 6, 8 or 10 times every minute when the 4WD system requires service. Use a scan tool to check for diagnostic trouble codes (DTCs). Refer to the Four-Wheel Drive (4WD) Control Module Diagnostic Trouble Code (DTC) Index in this section.
Principles of Operation
The vehicle is equipped with an intelligent 4-wheel drive (4WD) system that is always active and requires no driver input. The system has no mode select switch. The system combines transparent all-surface operation with highly capable 4WD, and is capable of handling all road conditions, including street and highway driving as well as off-road and winter driving.
The 4WD system continuously monitors vehicle conditions and automatically adjusts the torque distribution between the front and rear wheels. During normal operation, most of the torque is sent to the front wheels. If wheel slip between the front and rear wheels is detected, or if the vehicle is under heavy acceleration (high throttle position), the 4WD system increases torque to the rear wheels to prevent or control wheel slip.
The 4WD control module varies the torque sent to the rear wheels by varying a pulse-width modulated current to the clutch in the rear axle. The 4WD control module also provides the brake system with its current clutch duty cycle and whether or not the brake system may take command of the clutch duty cycle.
NOTE: The active torque coupling is not repairable. If replacement is required, the active torque coupling and rear axle are replaced as an assembly. For additional information, refer to Section 205-02 .
The PTU is a gearbox that attaches to the transaxle.
On automatic transaxle vehicles, the RH halfshaft passes through the transfer case and engages the differential side gear as in normal FWD applications. The transaxle differential drives the PTU.
On manual transmission vehicles, the PTU is directly driven by a gear in the transmission. The halfshaft/intermediate shaft connects directly to the transmission differential by passing through the PTU. The PTU then drives the driveshaft at all times. The driveshaft drives one half of the rear axle clutch pack. The other half of the rear axle clutch pack drives the rear axle ring and pinion.
NOTE: PTU repair is limited to seals, gaskets and output flanges. If any of the geared components, bearings, case cover or internal shafts fail, a new transfer case must be installed.
The PTU is sealed from the transaxle and has its own oil sump. The PTU on an automatic transaxle vehicle uses 355 ml (12 oz.) of SAE 75W-140 gear lubricant. The PTU on a manual transaxle vehicle uses 350 ml (12 oz.) of SAE 80W-90 gear lubricant.
The active, on-demand 4WD system uses data from other systems as inputs to the 4WD control module. The 4WD control module uses the inputs to determine the appropriate amount of current to send to the active torque coupling that delivers the desired torque to the rear wheels. Specific inputs to the 4WD control module are:
  • throttle position.
  • transaxle range from the powertrain control module (PCM).
  • brake system status from the anti-lock brake system (ABS).
  • wheel speed from all 4 wheels from the ABS.
Some outputs of the 4WD control module are:
  • solid-state clutch (pulse-width modulated signal) to the active torque coupling.
  • 4WD indicator received by the instrument cluster.
  • percent of torque transfer commanded signal to the PCM.
  • torque request available signal to the ABS.
Heat Protection Mode During very extreme off-road operation, the 4WD system has a heat protection system to protect the active torque coupling from damage. If the system detects an overheat condition, it enters a locked mode and turns on the 4WD indicator light in the instrument cluster. If the heat in the system continues to rise once in the locked mode, the 4WD control module disables the active torque coupling and causes the 4WD indicator light to flash continuously.
4WD Indicator Light 4WD - Illuminates continuously when the 4WD system is locked in 4WD due to its heat protection mode. In the locked mode, the vehicle resists turning and binds up when driven on dry pavement. To exit the locked mode, stop the vehicle and allow it to cool for 5 minutes with the engine running. When the 4WD indicator turns OFF, normal 4WD system function is restored.
4WD - Blinks continuously when the 4WD system is disabled due to its heat protection mode. To exit the disabled mode, stop the vehicle and allow it to cool for 5 minutes with the engine running. When the indicator turns OFF, normal 4WD system function is restored.
4WD - Blinks 3, 6, 8 or 10 times every minute when the 4WD system requires service. Use a scan tool to check for diagnostic trouble codes (DTCs). Refer to the Four-Wheel Drive (4WD) Control Module Diagnostic Trouble Code (DTC) Index in this section.


Blinks Cause 3 Cluster is not receiving the 4WD indicator message from the 4WD control module 6 Invalid throttle position data received from the PCM 8 Invalid wheel speed data received from the ABS module 10 Active torque coupling circuit fault
0helpful
1answer

Does the Huawei MA5800 X15 support active/standby mode?

The Huawei MA5800 does not support active/standby mode, but only load sharing mode. The MA5800 has a distributed architecture. When two control boards are configured, the active and standby control boards carry services at the same time to effectively utilize the bandwidth of two control boards. Huawei MA5800 X15
0helpful
1answer

How do you change out 4 wheel drive switch on 2004 Yukon

Before trying to replace the switch ,are any lights flashing ? 2hi , 4lo, 4hi etc... Do you know which transfer case yours has ?
Transfer Case - BW 4482-NR4
Transfer Case - NVG 246-NP8
How many buttons ?
The BW 4482 transfer case features a 3-button shift control switch located on the instrument panel.
The NVG 246 EAU transfer case features a 4 button shift control switch located on the instrument panel
Before you replace the switch and finding out that it isn't the problem . The switch is a low voltage input to the tansfer case shift control module (A COMPUTER ) Could have diagnostic trouble codes stored .
DTC B0790
DTC B2725
DTC C0306
DTC C0327
DTC C0329
DTC C0359
DTC C0550
Auto part stores can not read these codes .

The BW 4482 transfer case features a 3-button shift control switch located on the instrument panel. When the vehicle has the ignition key in the RUN position, the transfer case shift control module starts monitoring the transfer case shift control switch to determine if the driver desires a new mode/range position. At a single press of the transfer case shift control switch, the lamp of the new desired position will begin flashing to inform the driver that the transfer case shift control module has received the request for a new mode/range position. The lamp will continue to flash until all shifting criteria have been met and the new mode/range position has been reached, or has been engaged. Once the new mode/range position is fully active, the switch indicator lamp for the new position will remain ON constantly. In addition, the switch includes a VSES request button which sends a voltage signal to the transfer case shift control module. The transfer case shift control module in turn sends a request via the class 2 data bus to the ABS control module which controls the VSES system.

The NVG 246 EAU transfer case features a 4 button shift control switch located on the instrument panel. When the ignition key is in the RUN position, the transfer case shift control module monitors the transfer case shift control switch to determine if the driver desires a new mode/range position. At a single press of the transfer case shift control switch, the lamp of the new desired position will begin flashing to inform the driver that the transfer case shift control module has received the request for a new mode/range position. The lamp will continue to flash until all shifting criteria has been met and the new mode/range position has been reached, or has been engaged. Once the new mode/range position is fully active, the switch indicator lamp for the new position will remain ON constantly.
DTC B2725
Circuit Description
The range/mode switch circuit consists of 5 modes. The transfer case shift control module supplies 5 volts to the switch through the 5 volt reference circuit. The current travel through the resistor of the currently active mode. The current is then returned to the transfer case shift control module through the switch signal circuit.
The transfer case shift control module constantly monitors this signal voltage to determine the condition of the mode switch circuit.
When each of the modes are selected they complete a circuit through their own specific resistor. The transfer case shift control module continuously monitors the switch input to determine whether the Neutral, AWD, 2HI, 4HI, or 4LO mode was selected by the driver.

You may want to take this to a repair shop .
0helpful
1answer

My hydroquip cs6230-u pack on my hot tub shuts off for days and comes back on. None of the circuit breakers pop. The cold weather is coming and I don't want any pipes to freeze. I would also like to u

I do not know this unit so this is only a guess on my part.

I am not sure what you are by it shuts off for days. If it is hot that may also cause it to shut down but for less then an hour. The manual can be found by googling:

hydroquip cs6230-u pack manual

Several of the manuals show up. Be sure CGFI is OK.

This is what I found in the manual. Measure your water temperature it may be OK.

FREEZE PROTECTION - There are two(2) levels of freeze
protection integrated into the system.
1 - SMART WINTER MODE, this mode will activate any time the
temperature falls below 59BF. This mode will be active for a period
of 24-hours. In this mode, if a pump has not been activated in the
last 2 hours, the system will automatically turn it on for 1-minute
to prevent freezing. The "Filter Cycle" indicator will illuminate
while this mode is active.
2 - If the spa water temperature drops below 49BF, the heater &
pump will be activated until the water temperature reaches 50BF.
While freeze protection is active no other functions will be
possible.
1helpful
1answer

I have a MOD 600 alarm, installed about 9 years ago. Every time I pass a sensor the alarm makes three beeps. How do I stop it?

Hello. This is a normal response to the motions detector while people are active within the home.
The alarm is a semi active mode that is the motions detector will beep, if a door is open there could be active voice alarm or beeping from Central alarm within the home. The same will happen if a window is opened, beep,beep,beep.



In this mode it lets the home owner while in his/her home that the alarm is on and it will let you know when the doors, windows or floor pressure sensor is activated.



There another mode for the alarm system that is if you have pets. It can be activated that only things that are inactive is the motion and pressure sensors. They beep but will not execute the full alarm system.



The there is full alarm system activation where every sensor is operational----full Alarm On....



Now, if you don't like the beeping, then you can turn the alarm system off while you or your husband is in the home. But it will not notify you if the door, window, motion, pressure sensor are activated. I hope this help you. GB....stewbison
1helpful
1answer

Script error, active desktop in recovery mode, how do I fix script error says line 65



PLEASE LET ME KNOW IF THIS HELPS AT ALL
How to enable / disable windows active desktop. Question:How to enable / disable windows active desktop.
Answer:Microsoft Windows XP users
  1. Open the Control Panel.
  2. Open the Display icon.
  3. Click the Desktop tab.
  4. Click the Customize Desktop button.
  5. Click the Web tab in the Desktop Items window.
If you wish to enable the Active Desktop, check My Current Home Page.Add your current home page into your desktop or click New to addanother web page and/or other Active Desktop features. To update thecontent, click the Synchronize button.
If you wish to disable Active Desktop, make sure all checkboxes in this window are un-checked.
0helpful
1answer
0helpful
2answers

Fisher Paykel Active Smart fridge turned into storage unit by power surge

I would unplugg the machine for 5 minutes, plug back in again and close the freezer door, open fridge door and press the mode button
4helpful
2answers

SAFE

Pro-Tect Plus™ Locking Feature
To disable VCR usage or to protect set timer recordings, the unit can be locked so that the
buttons on the VCR or remote control don’t work.
• To Lock: Press and hold either the remote control’s ON•OFF or VCR button until SAFE
appears in the display to indicate Pro-Tect Plus is active. SAFE also appears if the VCR is
turned on while the feature is activated.
To Unlock: Press and hold either the remote control’s ON•OFF or VCR button until SAFE
disappears from the front panel display. Unlocking is the only way to use the VCR.
Not finding what you are looking for?

5,956 views

Ask a Question

Usually answered in minutes!

Top Carrier Heating & Cooling Experts

Jay Finke
Jay Finke

Level 3 Expert

1397 Answers

Mike Cairns
Mike Cairns

Level 3 Expert

3054 Answers

Grand Canyon Tech
Grand Canyon Tech

Level 3 Expert

3867 Answers

Are you a Carrier Heating and Cooling Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...