The heater in my mum's Accent 05 is not working. The blower ioperates and hot water is getting to the unit. Are the air direstional controls and the heat/cold control electrical or mechanical? If mechanical, how do I get the face off the dashboard. If electrical, what fuse do I look for?
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Re: Heater not working
The heat come from the motor block. How long has it been sense you changed the theromistatic????? Does the car have a manual temp guage???? It it showing low temp????? The temp should be running up to normal, which should be about half way on the guage.
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IT could be one of several things: possible the blower fan motor is bad; or the valve that lets the hot water in from the engine to the heater core is not opening; or the door that lets the air flow past the heater core and onward to your vents is not opening. All these are controlled by your heater switch, via relays and vacuum lines. If the blower motor works well when you put power to it directly, but not when it is hooked to the car, a connection in the switch or a relay may be bad. if you get little or no effort from the blower motor when you hook it directly to a good battery, it's the blower motor itself gone bad. If you get airflow but not heat, it's the device which diverts the hot water into the heater core. and if its the door to let air flow over the heater core, it could be a relay, a vacuum hose or the switch.
Please check on the tubing from the engine and see if there is any corrosion. There is a possibility that rust could block the passage of the hot water circulation to the blower unit and so prevent hot water to circulate.You need to check by removing the tubing to the blower unit and also check if the valve in control panel is working when switched to hot .
Hello, I usually work on Ford products but I will try to help you. When the car is at normal operating temperature turn on the heater.
Go under the hood and locate the 2 rubber hoses that go into the Firewall for the heater core. When the engine is hot and the heater is on, if both these hoses are hot you have water flow. This means the heater is getting hot and the problem is your ductwork is not moving the flaps under the dash. You have something broken under the dash like a cable or electric solenoid that is not moving the flaps. You would need to look at the end of the temperature cable or heat selector cable to see if the cable has slipped or whether it is moving at all. Then fix or replace that part.
If the heater hoses above are not BOTH hot, then you have a water flow problem. Usually you go to a autoparts store and ask the clerk for a water flow valve for the heater. Once you have it in hand you will see what it looks like and only need to find it on the car.
Drain your antifreeze to save it and then replace the water valve. Start the car and add part of the antifreeze back to the radiator and wait until there is room for the rest of the antifreeze. Be sure to turn on the heater to get the water circulating and check for leaks. You should be done.
If your car is not blowing heat, then it means there is a problem somewhere. There are several causes of such problem like, low coolant level, open thermostat or the one that is too cold for the application, a defective heater control valve, plugged heater core, an ioperative airflow control or inlet door in the heater ducting or plenum, a defective blower motor, a pinched or kinked heater hose or a weak water pump.
Any of this might be the cause to the problem. Have a mechanic run a check on the car to know which is the fault, then I will be able to provide the step by step solution to the problem.
Take care and good luck. I hope this solution was helpful
fans and heaters ?? now please explain as iam only a motor mechanic from east london which means iam a thicko because of my accent ,so do you mean the radiator cooling fan isnt working and the cab heater isnt getting hot ,or the interior blower fan isnt working ,Now remember that to do a diagnostic check on this vehicle isnt possible because its a renault which means its encrypted software from about the year 2005 onwards and this make of vehicle was one of the first to use encrypted software for the introduction of the OBDII diagnostic connection in europe .
Since your blower is working and it is a heat issue,thats where we'll
start,First thing is have you checked the coolant level in the radiator when
engine is cold,make sure it is filled to top,next verify you have coolant in
reserve ,Start your van and get it up to normal operation temperature,If your
heat gauge on the dash works correctly it should be 190 degrees,Now lift the
hood and locate the two heater hoses going into the heater assembly at the fire
wall,Both hoses should be hot to hold on to,if both are hot and no heat inside
your problem will be the blend air door in heater assembly. if neither hose
is that hot you need to replace the thermostat in the engine to get it up to 195
degrees. if one hose is hot and one is luke warm then the heater core is
blocked and to blame. hope this helps you.
Hello. I can assist you. Drive to any autozone or similar parts store and get a new thermostat for your car. In many instances these auto parts stores, especially autozone, will loan you the tools and even help you do the job. Regards, Joe
HI"Monitor the flow of the system, by installing a clear hose at the HEATER core assembly, to verify circulation.
If necessary, remove the water pump and inspect the impeller for worn fins which could have rust away not producing enough water flow to get water in the heater core.plug heater cores are popular but water pump is more commen
1.Chock wheels.2.Drain the engine coolant. Refer to Engine Cooling System.3.Discharge and recover the refrigerant from the A/C system. Refer to Recovery/Evacuating/Charging in this section.4.Remove the dash panel. Refer to Body.5.Remove the Blower/Evaporator unit. Refer to Blower/Evaporator Unit in this section.6.Disconnect the low pressure line from the evaporator outlet on the bulkhead.7.Disconnect the high pressure line from the evaporator inlet on the bulkhead.8.Disconnect the heater return hose from the heater core outlet tube connection.9.Disconnect the heater inlet hose from the heater core inlet tube connection.10.Disconnect the fresh air/recirculation control cable from the blower housing unit inlet duct.11.Disconnect five connectors at the bottom of the blower housing unit.12.Pull carpeting away from bulkhead to gain access to the hole cover plate.13.Remove the four nuts retaining the hole cover plate.14.Remove the hole cover plate.15.Remove two mounting bolts at the top of the blower housing unit.16.Remove two nuts attaching the bottom of the blower housing unit to the bulkhead mounting studs.17.Remove the blower unit from the vehicle.18.Remove the temperature control cable from the heater unit servo.19.Remove the two nuts from the mounting studs at the bottom of the heater unit.20.Remove the top nut holding the heater unit to the bulkhead to the bulkhead mounting stud.21.Remove the heater unit.Regards,Jeep Brainy