Technical Heater blower resistor - Ducato 2.8 JTD

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Technical Heater blower resistor - Ducato 2.8 JTD

Shingy

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I hope my new thread on the above subject is in order, as searching back over many previous questions raised in threads on the failure of the heater fan to work correctly on all the four settings in an effort to solve my problem, I’ve found many answers left me still rather bewildered.

OK, fair enough, over the years the Ducato has been around for some while now in its many guises and so there will be a similar number of variations in production types and producers of fittings, and therefor resultant answers.

I have a 2005 2.8 JTD Ducato motorhome. My heater fan would recently only work on the MAX setting which to me meant that at least it was getting 12v. I concluded that it would be more than likely that the resistor had failed, and because there were so my variations of this component over the years, I decided to find my part to enable me to identify it accurately prior to order a replacement. I found this task remarkably easy and to help others I’ll describe the procedure.

All that is required is to completely remove the glove box. The item is held in place by eight TX20 screws and a single HX5 screw. (One of the TX screws is hidden behind the small removable pocket to the left of the glove box, which is levered out using a flat blade type of tool.) Withdraw the glove box, and if it is resisting make sure you’ve got all nine screws out!

You will see the resistor coloured brown right in front of you beside the blower fan and held in place by a single small Phillips screw and remove it from its placing. There is an electrical connection socket affixed to it comprising of four wires - BLACK/WHITE & BLACK/ BLUE & RED/ and GREY & BLACK.

I took a photo of this component ready to purchase a replacement. However, surprise, surprise by giving connectors a very slight clean up, plus inserting and removing the electrical connector a number of times, much to my delight my fan control has returned to normal. Answer : clean the connector which wasn’t corroded in any way in the slightest, but electrics can play tricks with you sometimes and if it takes upon itself that it doesn’t want to pass, it won’t !

Hoping that someone will find this helpful. Mick
 
I do not know about the X244 variants but on the X250 the resistor pack is in the negative side to the motor. The motor will always have positive voltage whilst the ignition is ON. The switch and resistor pack is inserted in the negative leg with a direct connection to ground on the high speed position.
 
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