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S-air mode not in use - Sony DAV-HDX678WF Theater System

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Need info on heater mode door operation


The mode door actuators are reversible, 12-volt direct current (DC) servo motors. The heating-A/C systems on this vehicle use two mode door actuators. One for the panel/floor-air door and one for the defrost-air door.

Both the defrost door actuator (1) and the panel/floor door actuator (2) and the are located on the driver side end of the HVAC housing (3), close to the dash panel.


All actuators (1) are interchangeable with each other. Each actuator is contained within an identical black molded plastic housing with an integral wire connector receptacle (2). Each actuator also has an identical output shaft with splines (3) that connects it to its respective door linkage and three integral mounting tabs (4) that allow the actuator to be secured to the HVAC housing. The mode door actuators do not require mechanical indexing to the mode-air doors, as they are electronically calibrated by the A/C-heater control.
OPERATION

The mode door actuators are connected to the A/C-heater control through the vehicle electrical system by dedicated two-wire leads and connectors of the HVAC wire harness. The mode door actuators can move the defrost-air door and the panel/floor-air door in two directions. When the A/C-heater control pulls the voltage on one side of the motor connection high and the other connection low, the mode-air door will move in one direction. When the A/C-heater control reverses the polarity of the voltage to the motor, the mode-air door moves in the opposite direction.

When the A/C-heater control makes the voltage to both connections high or both connections low, the mode-air door stops and will not move. The A/C-heater control uses a pulse-count positioning system to monitor the operation and relative position of the mode door actuators and the mode-air doors. The A/C-heater control learns the mode-air door stop positions during the Actuator Calibration procedure and will store a Diagnostic Trouble Code (DTC) for any problems it detects in the mode door actuator circuits.

The mode door actuators are diagnosed using a scan tool (Refer to 28 - DTC-Based Diagnostics/HVAC - Diagnosis and Testing).

The mode door actuators cannot be adjusted or repaired and must be replaced if inoperative or damaged.

Jan 28, 2015 | 2006 Dodge Ram 1500

1 Answer

Unit blows cool air while in heat mode


model number? Heat pumps tend to blow cooler air than a space heater unless in money-gobbling mode.

Mar 28, 2014 | LG Heating & Cooling

1 Answer

Ac exhaust fan


Yes for dehumidifier, no for heat mode. In dehumidifier mode all the unit does is takes air in, runs it through the evaporator (cold) coil and the back through the condenser (warm) coil discharging dry, slightly warmer air back into the room. In heating mode however if you don't vent the exhaust there will be no heat produced. Warm air will come out the top but cold air will also come out the exhaust (essentially, in heating mode all it does is operates as an air conditioner in reverse. Hope this helps.

Jan 11, 2014 | Whirlpool ACP102PS Portable Air...

1 Answer

I have a centrex air con.. and i dont know what to do the air is not cool.. and there no button in the remote that i could use and fix it..


In your remote, there is mode button, the symbols for each option will display. The symbols are:
"
Now symbols:
1. fan leaves - Fan only
2. Rain drop- Dry mode
3. Snow flake-Cool mode
4. Sun- Heat
5. A or AU- Auto mode.To get proper cold air set temp 23 degree and mode"cool". To get heat set temp minimum 3 degree more than room temp and mode in "Heat"

Feb 02, 2011 | Heating & Cooling

2 Answers

What is the function of dry mode in ac, when to use dry mode, and when to use cool mode and what about heat mode.


Dry Mode in AC is to dehumidify the room the fan cycles on and off and the indoor unit temperature drops below freezing which causes condensate to collect on the coil and as a result the humidity level of the indoor air is reduced

Jul 13, 2009 | LG L1204R Air Conditioner

1 Answer

Mts/sap how do i set tv to antana mode?


Hi

please go to menu then click the system settings then click the Air mode, they have two mode the cable mode and the air mode hit the air mode

Thanks!

Jul 08, 2009 | Philips Magnavox 50ML8105D 50" HDTV DLP TV

1 Answer

Flashing airbag light


yes, go here for more help. There is a file on how to download codes and clear system.

The number of flashes is giving you a lamp fault code, LFC. What is it giving you?

http://autos.groups.yahoo.com/group/villagerquest/

Diagnostic Test Modes Without Scan Tool
Two mode options are available under the diagnostic test modes:
  • user mode.
  • diagnosis mode.
The ignition switch is used to alternate from one mode to another.
Diagnosis Mode
The diagnosis mode will display any fault present in the system. The SRS will not enter diagnosis mode if no malfunction is detected.
User Mode to Diagnosis Mode
NOTE: The SRS will not enter diagnosis mode if no fault is detected in user mode.
  1. Ignition switch to ON.
  1. After the air bag warning indicator lights for seven seconds, set ignition switch to OFF within one second.
  1. Wait more than three seconds.
  1. Repeat steps 1 through 3 three times.
  1. Ignition switch to ON.
Diagnosis Mode to User Mode — After Repair
  1. Ignition switch to OFF for at least one second.
  1. Ignition switch to ON.
Diagnosis Mode to User Mode — During Diagnosis
NOTE: If switch from Diagnosis Mode to User Mode is required while diagnosing a fault, carry out the following procedure.
  1. Ignition switch to ON.
  1. After the air bag warning indicator lights for seven seconds, set ignition switch to OFF within one second.
  1. Wait more than three seconds.
  1. Repeat steps 1 through 3 three times.
  1. Ignition switch to ON.
Clearing Lamp Fault Codes
NOTE: Lamp fault codes must be cleared from memory before proving out the system.
NOTE: When a new RCM is installed, the air bag warning indicator will operate in user mode. Switching to diagnosis mode is not required.
To clear lamp fault codes after a repair, carry out the procedure to switch from diagnosis mode to user mode. Once in the user mode, the lamp fault codes will be cleared from memory.
Lamp Fault Codes
If the air bag diagnostic monitor detects a current fault, the fault code will be displayed with a flashing sequence of the air bag indicator. The fault code consists of:
  • A start signal to indicate the beginning of a fault code.
  • A number of flashes indicating the particular code that has been set.
The start signal:
  • begins with two seconds off.
  • two seconds on.
  • off.
  • one second on.
  • two seconds off.
Following the start signal, if any current fault is detected, the fault code will be displayed. The fault code:
  • is a series of half second flashes of the air bag indicator.
  • is followed by the start signal.
The start signal and the code for any current fault will repeat until the ignition is switched off or the air bag diagnostic monitor is switched to the user mode.
Inspection and Verification
  1. Verify the customer concern by checking the air bag indicator in the instrument cluster. Refer to Prove Out in this section.
  1. Visually inspect for obvious signs of mechanical and electrical damage using the following chart.


Visual Inspection Chart Mechanical Electrical
  • Damaged air bag diagnostic monitor bracket
  • Open fuse
  • Damaged wiring harness
  • Loose or corroded connectors
  • Circuitry open or shorted
  • Damaged shorting bars

  1. If the concern is not visually evident, enter the system Diagnosis Mode.
  1. If no DTCs are displayed in the Diagnosis Mode, proceed to the Symptom Chart in this section.
  1. If DTCs are retrieved, proceed to the Air Bag Diagnostic Monitor Fault Code Table in this section.


Air Bag Diagnostic Monitor Fault Code Table Code Component/Fault Description 0 Normal Operation/No Fault Detected 1 Front Passenger Safety Belt Pretensioner 2 Driver Air Bag Module Circuit Is Faulted 3 Front Driver Safety Belt Pretensioner 7 Air Bag Diagnostic Monitor Fault 8 Passenger Air Bag Module Circuit Fault 9 Low Battery Voltage

Mar 24, 2009 | 2001 Mercury Villager

1 Answer

2007 F-150 Supercrew Lariat Cabin Air Filter


According to the shop manual you do not have one.
Air Distribution and Filtering adobe.gif Printable View (79 KB) NOTE: The air distribution system of this vehicle cannot be equipped with a cabin air filter.
There are 2 sources of air available to the air distribution system:
  • Outside air
  • Recirculated air
Recirculated air is automatically used when the electronic manual temperature control mode selector is set in the MAX A/C or OFF modes and can be selected in any mode other than MAX A/C, OFF or DEFROST by selecting the RECIRC button. Recirculated air is available in all modes except DEFROST. If the vehicle is equipped with an electronic automatic temperature control (EATC) system, recirculated air is used in OFF and is available in all modes except DEFROST. RECIRC mode is a timed function in FLOOR and FLOOR/DEFROST.
Air distribution within the vehicle is determined by the electronic manual temperature control (EMTC) function selector switch position, or is controlled by the EATC system in the AUTOMATIC mode. The air distribution mode on EATC vehicles may be overridden by the driver if desired. Air distribution doors are used to direct airflow within the heater core and evaporator core housing and the plenum chamber. An electronic mode door actuator is used to position these air distribution doors. One air inlet mode door is used to switch between FRESH or RECIRC air inlet. An electric actuator is used to position the air inlet mode door.
Air enters the passenger compartment from the:
  • instrument panel A/C registers.
  • heater outlet floor ducts.
  • windshield defroster duct.
  • side window demisters.
  • center flow-through console (if equipped).
Passenger compartment air is exhausted from the vehicle through open windows or body air vents.

Mar 08, 2009 | 2007 Ford F-150 Harley Davidson

1 Answer

Does this unit draw inside outside air in fan mode?


that's usually controled by a baffle inside or outside air

Jun 29, 2008 | Kenmore 72056 Air Conditioner

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