Intermittant AC blower - Land Rover Forums : Land Rover and Range Rover Forum
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post #1 of 18 (permalink) Old 08-31-2018, 04:16 PM Thread Starter
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Intermittant AC blower

The Mrs said her ac blower in the D2 doesnt come on - itermittantly.
(Although she didnt use the term “intermittantly” ha!)

Any thoughts?
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post #2 of 18 (permalink) Old 08-31-2018, 05:19 PM
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Bad contact, usually on the F7's circuit in the interior fusebox, read this whole thread: https://www.landroversonly.com/forum...t-blow-130737/ cos the troubleshooting steps are there

My friends call me Fery

2000 Discovery Td5 ES manual

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post #3 of 18 (permalink) Old 09-02-2018, 05:24 AM Thread Starter
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Thanks Sierra.
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post #4 of 18 (permalink) Old 09-09-2018, 01:24 PM Thread Starter
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Fuse in box under steering wheel was pristine.

Put it back in.

Worked fine.

Hmmmm.
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post #5 of 18 (permalink) Old 09-10-2018, 12:51 PM
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Garage
I've had that happen in the past when the blower motor was going bad.

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post #6 of 18 (permalink) Old 10-09-2018, 12:16 AM
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This was happened to me last year, very annoying...
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post #7 of 18 (permalink) Old 10-11-2018, 05:06 AM Thread Starter
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Jackson, what was your fix?

Last edited by sobieski; 10-11-2018 at 07:24 AM.
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post #8 of 18 (permalink) Old 04-28-2019, 10:23 AM Thread Starter
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Picking this one back up....

I did the fuse bypass but the fan blower is still intermittent.

If she puts the blower on set to Non-recycled air, it typically comes on after driving a few minutes.

Relay?

Any direction ( Fery ) on diagnosing “from the top” would be appreciated.

With your direction I can practice what I learned from the window motor and electrical library experience.

Thanks!
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post #9 of 18 (permalink) Old 04-29-2019, 12:35 AM
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How did you do the fuse bypass? piggiback from F7 to the blower's plug or how

Try to set the blower to maximum speed and see then, if it's not intermittent on max speed only on all the others then the problem is with the power transistor or it's circuit, to rule out other circuit issue make somehow to hook two wires to the blower's plug pins(C0056) bring them on the dash and let a voltmeter connected to them while the symptom occurs, white/red wire is (+)... if there is voltage while the blower doesnt work the problem is with the motor, if the voltage is missing too you'll have to see what's missing so let positive voltmeter probe hooked to the WR wire, connect the other to earth somewhere and see then and report the results and we'll speak again cos this troubeshooting must go step by step and it's hard to cover all the possibilities from the beginning

My friends call me Fery

2000 Discovery Td5 ES manual

Hawkeye v.6, Nanocom EVO,
VDM UCANDAS, oscilloscope


if you think my english is peculiar it means you didnt hear my japanese

ALL MY ADVICES ARE BASED ON MY OWN KNOWLEDGE AND MY WAY OF UNDERSTANDING THE DESCRIPTION AND OPERATION OF SYSTEMS... I'M NOT A LAND ROVER TRAINED SPECIALIST JUST AN ADDICTED ENTHUSIAST.
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post #10 of 18 (permalink) Old 05-01-2019, 04:24 AM Thread Starter
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Will do.

The intermittent issue is present w the fan blower set to Hi, which tells me it’s not the resistor. ✅

I just need the blower to be not working and the truck and me at the house all at the same time to test the voltage at/from the connector. ✅ (maybe i could fab something up for the mrs to tell me when she’s out and about).

Will report back.

Thanks..
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post #11 of 18 (permalink) Old 05-04-2019, 03:52 PM Thread Starter
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I have 12v going to / at the plug at C0056, on the highest fan speed setting; yet, no blower blowing.
Thus, does that conclude that it's as simple as a new blower motor?
Could it be that easy?

Last edited by sobieski; 05-04-2019 at 05:10 PM.
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post #12 of 18 (permalink) Old 05-04-2019, 05:15 PM
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Quote:
Originally Posted by sobieski View Post
I have 12v going to / at the plug at C0056, on the highest fan speed setting; yet, no blower blowing.
Thus, does that conclude that it's as simple as a new blower motor?
Could it be that easy?
Yes, as long as it's good contact in that plug and the pins are not loosened cos as you see that plug is connected directly to the motor and while it's power there the motor should run.

My friends call me Fery

2000 Discovery Td5 ES manual

Hawkeye v.6, Nanocom EVO,
VDM UCANDAS, oscilloscope


if you think my english is peculiar it means you didnt hear my japanese

ALL MY ADVICES ARE BASED ON MY OWN KNOWLEDGE AND MY WAY OF UNDERSTANDING THE DESCRIPTION AND OPERATION OF SYSTEMS... I'M NOT A LAND ROVER TRAINED SPECIALIST JUST AN ADDICTED ENTHUSIAST.
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post #13 of 18 (permalink) Old 05-06-2019, 05:19 AM Thread Starter
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I’ll get the new blower ordered.
Thanks!
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post #14 of 18 (permalink) Old 05-06-2019, 06:40 AM
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I’ll get the new blower ordered.
Thanks!
I have a used spare if you want to test Mike - if it'll work for you bro. Just give me a call and you can swing by for it bro.

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post #15 of 18 (permalink) Old 05-06-2019, 08:44 AM Thread Starter
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Thanks Mike!
The replacement is already en route, but good to know you have a "parts" shelf - I may circle back to see what goodies you have laying around, when needed!
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