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Thread: Relays

  1. 4th January 2012, 07:45 PM #1
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    Relays

    My fan blower comes on and off as it desires and I thought it can't be a bad idea to change the relay.

    I know very little about electronics; am I right in thinking that you can replace the existing relay with a more robust relay? how are they rated and where can I find a replacement?
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  2. 4th January 2012, 09:19 PM #2
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    What year P38A?

    Do you get the HEVAC chequebook symbol?

    There was an issue with early P38As having the fans switch off due to a faulty connector at the blower motor. I've discussed this before.

    Need P38 A/C specialist in Melbourne

    Also have a look at P38 Rangie Air Con Problem ?
    Ron B.
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    2007 Yamaha XJR1300
    Previous: 1983, 1986 RRC; 1995, 1996 P38A; 1995 Disco1; 1984 V8 County 110; Series IIA



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  3. 4th January 2012, 09:49 PM #3
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    It's a 1996.

    The reason I'm focused on the relays is because one of the fan relays is showing signs of overheating (scorching) and I want to swap it out before it ruins the fuse box
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  4. 4th January 2012, 10:18 PM #4
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    RL7? Replace it. Also check the fuel pump relay RL12 if I recall correctly.
    Ron B.
    VK2OTC

    2003 L322 Range Rover Vogue 4.4 V8 Auto
    2007 Yamaha XJR1300
    Previous: 1983, 1986 RRC; 1995, 1996 P38A; 1995 Disco1; 1984 V8 County 110; Series IIA



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  5. 5th January 2012, 10:04 PM #5
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    Where do I find replacement relays, how are they rated?
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  6. 6th January 2012, 08:11 AM #6
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    Quote Originally Posted by poleonpom View Post
    It's a 1996.

    The reason I'm focused on the relays is because one of the fan relays is showing signs of overheating (scorching) and I want to swap it out before it ruins the fuse box
    Chances are, if it's the original, that the fusebox will be on it's last legs too.

    Ron hasn't had too many issues with his but then again it spends more time off the road than on lately . I replaced mine recently after a meltdown.
    Scott
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  7. 7th January 2012, 11:08 PM #7
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    Quote Originally Posted by poleonpom View Post
    Where do I find replacement relays, how are they rated?
    Can anyone answer this?
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  8. 7th January 2012, 11:58 PM #8
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    LAND ROVER YELLOW RELAY YWB100112 GENUINE NEW | eBay
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  9. 8th January 2012, 10:14 AM #9
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    So, am I right in thinking it's ok to swap like for like? Is there no "beefed up" relay alternative so that the replacement doesn't overheat?
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  10. 8th January 2012, 11:15 AM #10
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    Relays are rated in amps. Not sure what the genuine one are but they have lasted a decade or more so they cant be that shabby. A bit of reading suggests Bosch / Siemens are 70 amp so thats heavy duty from the start. ( correct me if I am wrong please )
    Here are some 80amp peak 5 pin ones, Most aftermarket seem to be 40. Just need to chose 4 or 5 pin. Yellow 4 Green 5pin

    (4) Heavy Duty 70A 80A 12V Auto POWER Relays 5 Pin SPDT | eBay

    http://www.ebay.com/itm/Car-Auto-Tru...item43aba34dbd
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