The LH models (LHS, Concorde, New Yorker, Intrepid, Vision) do have
self-diagnostic capability with the standard type heater controls. I
don't know about the Sebring heater controls (my '95 manual doesn't
mention it) but if you have the various controlknobs/buttons that I will
describe you could give it a try.
There is a rear window defogger that is initiated by a push button with
an LED light. That light is the readout, by its blinking. To begin the
diagnostic mode, run the vehicle at idle with the controls set as
follows: the blower speed knob should be on any position other than OFF,
the temperature knob should be set in full COOL, and the mode knob
should be set on Defrost mode.
To enter the diagnostic mode, press the defogger switch in for five
seconds, until it begins to blink, then release it. It will continue to
blink for about 30 seconds while it calibrates. If it goes out, the
calibration is OK and you can skip 3 paragraphs to "Position...mix mode"
below.
If the light stayed on, switch the mode knob to the MIX
(defroster-floor) position. If the light stays on there is a problem
with the control head unit.
Switch the mode knob to the FLOOR position, if the light stays on, it
indicates a problem in the blend door or the blend door actuator wiring.
Move the knob to the Bi-level (panel-floor) position where a continuous light indicates a problem with mode actuator or circuit.
Position the knob in the MIX mode. The LED light should now flash twice
then pause, and continue a two-flash sequence, indicating that the MIX
mode is OK.
In the FLOOR mode the light should flash three times, meaning that the FLOOR mode is OK.
In the Bi-Level Mode, a four-flash sequence indicates that mode is OK.
In the PANEL mode the light should flash 5 times to indicate no problems
there, and in the recirc-panel mode 6 times and seven times in the
recirc Bi-level mode.
The temperature control can be checked by switching the mode knob to
Defrost and rotating the temperture knob. If the temperature contol is
OK, the light will flash faster the more you turn the temperature knob
up, until the light goes out at the hottest setting.
Switch the knob between Panel and Recirc-Panel and watch the recirc door
(unit under the dash). Proper operation means that circuit and
components are OK.
To get out of the self-diagnostic mode, turn off the blower or push the air conditioning button once.
If this doesn't seem to apply to your control head or you get no
response from an LED light for the rear defroster, then the Sebring may
not have this capability. Please let me know your results if any
SOURCE: my 1995 ford areostar van when heat is on only blows cold air
The aerostar has a vacuum operated watervalve in the heater tubing.the valve is located on the
passenger side inner fender behind the aircleaner.with someone operating the controls inside the van
you can check to see if you get vaccum by removing the tiny hose that goes to the water valve
and checking for suction as you in the van person operates the heater conthttp://www.fixya.com/PostAnswer.aspx?thid=1323651&prdid=696348rols. If you have no
vaccum there is a break in the hose between the intake manifold and the valve. If you do get
vaccum check to see if the valve changes position from vaccum on to vaccum off. you can see
this motion on the small lever on the side of the valve. If the valve lever doesn't move you can
move it manually to allow the water to flow through the heater core. if the valve won't move manually
there is an obstruction in the valve. If it does move manually the vaccum diaphragm is gone.
replace the valve. if it moves to the manual open position you can hold it open with a tywrap.
before you get to this point you should first check to see that there is enough coolant in the
radiator. If you still have no heat you can check the coolant flow through the heater core. to do
this remove both heater hoses from the valve and pump water from a hose into one of the hoses
water should flow from the other hose. If it doesn't the heater core is blocked. The rear heater
operates the same way with the watervalve under the van just behind the drivers seat.
Good luck.
SOURCE: heat works on driver side, passenger side blows cold air.
Did you check your coolant level or was it low and you added to it at some point? If so the system my need to be bleed or worst case the thermostat is going bad.
SOURCE: No heat. Fan blows cold air.
I think u may have an air temperature control blend door problem, the door is moved by a small electric motor, it is stuck in the cold position.
SOURCE: The blower works blowing only cold air no heat? I
The heat is generated by a radiator located in your dash using engine coolant. You don't have heat because the valve that is controlling the coolant flow is closed - either it or the commands that is controlling it are broken - find which and fix them.
Testimonial: "Is this valve easily accessible? How do you keep it open? Commands, is that computer realted?"
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Heater blows cold?
http://schematicsdiagram.blogspot.in/2012/02/heater-blows-cold.html
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Heat blows cold on drivers side and hot on passenger side?
http://schematicsdiagram.blogspot.com/2011/12/heat-blows-cold-on-drivers-side-and-hot.html
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No heat, blower blows only cold?
http://technoanswers.blogspot.in/2012/02/no-heatblower-blows-only-cold.html
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These will help.
Thanks.
NO HEAT ON FLOOR VENTS
---------
As
per your problem mentioned. There are few solved help links to
troubleshoot these problems. Go through the list and Click the link below:----
http://whatisbyme.blogspot.in/2012/05/2000-toyota-avalon-no-heat-on-passenger.html
------------
------------
http://schematicsdiagram.blogspot.in/2012/02/heater-blows-cold.html
-----------
http://repairhelpcenter.blogspot.com/2012/01/hot-air-on-drivers-side-vents-only.html
--------------
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http://technoanswers.blogspot.in/2012/04/1992-toyota-camry-ac-control-light.html
--------------
http://technoanswers.blogspot.in/2012/02/no-heatblower-blows-only-cold.html
----------
-------------
http://whoisbyme.blogspot.in/2012/06/2009-mercury-grand-marquis-ac-blows.html
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http://schematicsdiagram.blogspot.in/2012/04/ac-not-blowing-through-vents-on-2007.html
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http://schematicsdiagram.blogspot.in/2012/04/passenger-side-temperature-is-warm-air.html
----------
These
will help.
Thanks.
As
per your problem mentioned. There are few solved help links to
troubleshoot these problems. Go through the list and Click the link below:----
------------
------------
http://schematicsdiagram.blogspot.in/2012/02/heater-blows-cold.html
-----------
http://repairhelpcenter.blogspot.com/2012/01/hot-air-on-drivers-side-vents-only.html
--------------
-----------
http://technoanswers.blogspot.in/2012/04/1992-toyota-camry-ac-control-light.html
--------------
These will help.
Thanks.
When I turn on the heat in my 2004 mazda mpv
the front air vents blow heat but the rear air vents are blowing cold. I have adjusted every setting is there something I am overlooking.
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