Hive mind scavenger hunt (easy one)

Okay so this should be an easy one...

Background: I love electric fans

Awesome solution/aid: Thermostatic fan control switch.

Challenge: I like an odd on/off setting. On at 210, off at 190-195 degrees.

Problem: I haven't found many and the ones I have had tend to fail just outside of warranty period: http://www.ebay.com/itm/210-Degree-Electric-Fan-Thermostat-Temperature-Switch-/310341004040?pt=Motors_Car_Truck_Parts_Accessories&hash=item4841c3eb08&vxp=mtr#ht_2565wt_870

I'm looking for the same thing just from some other supplier. However this ebay one is the right price but I don't want to buy 3 or more of them a year since 2 vehicle use this setup. The one in my truck went out this weekend. I like the one wire 3/8ths thread.

Anyone have on recommendations for a new thermo switch for that range?

If you are on evilbay anyway, look for "12v temperature controller" and pretty much take your pick. Most of them program in C, so you will have to do a bit of math, but the standard thermocouple most come with is 20-120 C or so and should be fine.

The only 12v temp controllers I found were quite expensive. I comfortable with my setup I just want a more reliable unit. Summitracing has them too but not the temp range I need.

nobody else?

Easy options: http://m.ebay.com/itm/331113790970?nav=SEARCH&sbk=1

http://m.ebay.com/itm/191028064430?nav=SEARCH&sbk=1

http://m.ebay.com/itm/291011470347?nav=SEARCH&sbk=1

http://m.ebay.com/itm/310341004040?nav=SEARCH&sbk=1

http://m.ebay.com/itm/140569149752?nav=SEARCH&sbk=1

cheaper and slightly more difficult: http://m.ebay.com/itm/171182659815?nav=SEARCH&sbk=1

http://m.ebay.com/itm/171153428067?nav=SEARCH&sbk=1

http://m.ebay.com/itm/251388160040?nav=SEARCH&sbk=1

This is what I use:

Not in your price range.

I suck at scavenger hunts.

fidelity101 wrote: I'm looking for the same thing just from some other supplier. However this ebay one is the right price but I don't want to buy 3 or more of them a year since 2 vehicle use this setup.

To clarify, are you using a relay for the fan? Temp switches are usually extremely reliable, but they're only made for low current...like switching a relay at .1 amps instead of a fan motor at 15 amps. If you're replacing temp switches every few months, I strongly suggest you review your wiring.

There's more fan switches in here than you can shake a stick at:

http://www.napaechlin.com/upload/NAPAEchlin2/Documents/ECH_NA141_HQr.pdf

(Pro tip: Start in the back at index page B11 to find the specs table)

Dig around for the thread size, connector style, and temperature you want. You can use those part numbers at your local Napa, or you can cross reference the applications and look somewhere like rockauto.com to find other suppliers building for the same specification. I'm confused why you want such a weird temperature setting, but you seem to have yourself convinced so I won't argue the point.

Bryce

That's a temperature setting i'd want, myself. Mostly because it mimics the stock switch.

In reply to oldopelguy:

I dislike the probe style ones, never been a fan.

I could not find those digital ones that cheap but they also use the probe style.

the #4 is the one I currently am using.

Yes I am running a relay. I have the relay ground going to the thermo switch. so when it reaches the right temp the circuit closes, turning on the relay sending power from the source through the relay to the fan.

I tried going into napa to do the same thing but the people there were very unhelpful and irritated, thanks for the link.

Normally open switch that closes circuit at @210 degrees, then opens at @190 degrees seems to be tricky, its the inverse on most of the items in napa

fidelity101 wrote: Normally open switch that closes circuit at @210 degrees, then opens at @190 degrees seems to be tricky, its the inverse on most of the items in napa

If you find a switch that is exactly like you want, except reverse polarity, just change your relay high current output from 87A to 87 or vice versa depending on the current setup.

Bryce

Since you have several dead switches, you are some thermal gel and rtv away from turning one of those probes switches in to the same thing you have. Gut dead switch, insert probe in some gel, seal up with rtv.