hayden fan relay issue? - JKowners.com : Jeep Wrangler JK Forum
 
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post #1 of 5 Old 04-05-2011, 01:44 AM Thread Starter
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hayden fan relay issue?

i pulled a hayden fan relay off the wall in my shop. i bought it over 4 years ago to use on an other project. i used it only a short time and removed it. its an adjustable push-in probe style fan controler. i think it was 160-220 turn on.

anyway.
i set it to 160 and dropped the sender between the new tranny cooler and condenser with a new 30 amp relay. it didnt come on initially with the transmission temp reaching 180. (on purpose, i loaded it up) i didnt figure any big deal. later on from a longer drive i got home and the fan was running. the temp was below 120, as it has been since installing the new cooler. again, i thought it was no big deal. i had it set to 160 and i figured radiant head from the radiator was triggering it. well. it ran for 15 minutes. i tapped the relay and it cut off.


5 hours later, i went out to go to work and it was running.

i pulled the relay. i guess the whole sender/controller assembly is junk


did i just luck out and get a POS controller? i thought Hayden stuff was fairly decent....
anyone have a better (yet affordable) suggestion for a fan controller? its a little 7" fan, so the load shouldn't be too horrible.


maybe its multi-product branding... maybe its not hayden, but derale. it is identical to this:
http://www.summitracing.com/parts/DER-16759/


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Last edited by b1pig; 04-05-2011 at 01:59 AM.
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post #2 of 5 Old 04-05-2011, 02:30 AM
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Did you splice the wiring between the thermocouple and the controler?

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post #3 of 5 Old 04-05-2011, 11:36 PM Thread Starter
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no. its undamaged and unmodified.


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post #4 of 5 Old 04-06-2011, 09:10 AM
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Then I would probably call it a POS!. Remember, unless it's installed in close proximity to the OEM temp sensor, it may not read the same temp at the same time. You may be able to test the operation with a food thermometer and boiling water.

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post #5 of 5 Old 04-07-2011, 02:59 AM Thread Starter
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since its not exactly a "critical" unit i was ok with it not meshing perfectly with the inline temp sensors. in any case, the cooler has kept the temps below 120* in "normal" operation, peaking at 145* in the city traffic. running the a/c keeps it cooler too since the oem fan constantly cycles on with the pump. better airflow than i had expected.

i just knew the thing was junk when i came out after the Jeep had cooled off and the fan was running.

i'm probably gonna get a new fan relay with the thread-in inline sender. adds another degree of complication, but i guess if youre gonna do it... may as well go one step further.

thanks


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