Fan issues - help needed
Discussion
Fans are playing up and getting cheesed off with them. Connected the 2 wires from the otter together so they run permanently but this seems to work sometimes and then stops. I've jiggled the wires which makes no difference. I've removed the relay on the fuseboard and it clicks nicely. I've an override switch which works but often goes off when you start the ignition. Ie its intermittent so any ideas where to start. I've ordered a replacement otter but as I've disconnected the cables from the otter and its still playing up I dint think its this. The are 2 cables into each side of the otter, 2 green on one side and 2 brown on the other. Where do these feed from?
Its a pre cat if that matters.
FFG
Its a pre cat if that matters.
FFG
Paul, similar happened to me late last year.
Have a quick read of this that i posted at the time.
https://www.pistonheads.com/gassing/topic.asp?h=0&...
Have a quick read of this that i posted at the time.
https://www.pistonheads.com/gassing/topic.asp?h=0&...
Loubaruch said:
Have you checked the connectors at the fans, They frequently get corroded as the fans take quite a high current especially at switch on.
I had a few problems a few years back so removed the plug/sockets and soldered the wires direct to the fans. No problems since.
also check the earth point on the chassis which is near/under the radiator, i think this one is used by the fans I had a few problems a few years back so removed the plug/sockets and soldered the wires direct to the fans. No problems since.
Will check the fans tomorrow. Think they are 500 fans and the factory would have wired the in when it was put on a 500 chassis. Seem to still be on one relay though - a Ford yellow jobbie. Don't think the earth is at fault as nothing else playing up. Wiring by the fans is perfect - checked that already.
FFG
FFG
Fans are VA10 AP70/LL-47A. One relay controlling both (I think as they go off when I take the relay out). Relay is on the left side of the fuse board at the bottom - there is another relay above but christ know how you'd get that out. Fuse is 40a, third from the left which no layout I've seen shows.
Ordering new relay as tried another 4 pin but the numbering is different and it don't work with it.
FFG
Ordering new relay as tried another 4 pin but the numbering is different and it don't work with it.
FFG
FlipFlopGriff said:
Fans are VA10 AP70/LL-47A.
I used VA10-AP70/LL-61A, and paid £132.00 including VAT & delivery purchased direct from Spal.(Call Maggie on 01905 613714 Ext. 206)
VA10-AP70/LL-61A draws 14.2 amps and shifts air at 2250 m3/hr, the blade shield is the correct 28mm but being Spal's heavy duty model be aware the motor is 25mm deeper, however I had no issues with clearance fitting this heavy duty fan and all the mounting holes were exactly the same as the old original Spal fan I removed.
It sounds like the OP has a connection issue or a temperamental relay so new fans aren't really the answer, but I thought posting the above would be helpful for others.
If the OP wants to rewire the system a good fully adjustable fan controller solution with integrated relays is the Davies Craig 0444 digital radiator fans controller.
Sick and tired of my system constantly blowing relays and with warmer weather on the way it was time to investigate the source of the problem.... and rectify it once and for all!
I wanted to be able to set the fan on temperature but I also needed to retain my staged fan setup, now there are number of ways to get the staged fan effect and trust me I've tried a few, the thing is for reasons I won't bore you with none of them proved 100% satisfactory.
With the key issue I'd been suffering being blowing relays (contacts welding shut) I wanted to completely re-wire the system which included replacing the suspect relay holders, the solution came in the form of a Davies Craig Electronic Fan Controller.
This kit is really easy to fit & wire up, the key features are:
1. Allows you to control the temperature the fans come on
2. Starts fan one at the defined on temp, but waits 10 seconds before starting fan two (staged fan feature)
3. Staged off, first fan switched off at 5 degrees c lower than pre-set on temp, second fan switched off a few seconds later
4. LED numerical display showing real time temperature
I fitted the controller in March this year in preparation for this hot weather, installation was very straightforward and it's been working perfectly since.
Everything you need is in the pack making it easy to achieve a really tidy installation.
And now with ignition on showing the blue LED display after the engine had cooled following testing (showing 36c)
As I already have fan control from my Canems ECU (output 1) you might think it odd I've gone for this controller kit, but in the end it made sense as I wanted to replace the suspect relay holders, relays, and also keep my staged fan setup.
Just as the advertising says it's a really straightforward and simple to fit kit, if you're still on the 14CUX and want control of your fan on temp the Davies Craig electronic fan controller is definitely worth considering, the staged fan on feature also helps to eliminate voltage drops .
This kit is proper OEM quality, it's far superior quality to the home brewed cottage industry effort normally sold for our cars, it also comes with two waterproof fuse holders with fuses (one per fan), thus ensuring complete safety.
If you're considering this controller the Davies Craig part number is DC-0444, I bought mine on eBay from JJC Race & Rally for £48.00 which I think is fair given the quality, ease of fitment and the way the system just works exactly as advertised.
http://www.ebay.co.uk/itm/361083275551?_trksid=p20...
Hope this helps, Dave
Penelope Stopit said:
Where is the cover for that unit?
What cover 
Could it be you've not taken the time to review the kit beyond my photos on this post?
The kit doesn't come with a cover, quite simply because it doesn't need one.
All the electronics are potted into the case so it's 100% water tight, it's also designed to be fitted in the engine bay where there will likely be high levels of heat.
The best way to think of the kit is just an intelligent relay holder, it takes two standard 40a relays which can be replaced easily if they fail, I've been running the kit for over 3,000 miles now and it performs flawlessly even during extended periods idling in this current heatwave where ambient temps are rising above 32 degrees.
The kit is well tested and has been around for years, Davies Craig are an Australian company so I'd assume the kit has been extensively tested in much hotter temperatures than we ever see here and has proved 100% reliable under such conditions.
Given the above I think its safe to assume if it needed a cover... Davies Craig would have given it one.
Here's a link to the manufacturers website so you can better familiarise yourself with the product:
http://daviescraig.com.au/product/digital-thermati...
I also fitted this kit which is designed to work with the above.
http://daviescraig.com.au/product/temperature-sens...
The above puts the temp sender in the coolant flow where it should be, this is a much better idea than jamming it in between the rad fans
ChimpOnGas said:
What cover
Could it be you've not taken the time to review the kit beyond my photos on this post?
The kit doesn't come with a cover, quite simply because it doesn't need one.
All the electronics are potted into the case so it's 100% water tight, it's also designed to be fitted in the engine bay where there will likely be high levels of heat.
Erm.... "Davies, Craig Pty Ltd very own designed Digital Thermatic Fan Switch Kit can be used with our Thermatic Fans, EWP's & competitors Fans.Could it be you've not taken the time to review the kit beyond my photos on this post?
The kit doesn't come with a cover, quite simply because it doesn't need one.
All the electronics are potted into the case so it's 100% water tight, it's also designed to be fitted in the engine bay where there will likely be high levels of heat.
Simply set the temperature by pressing the set button.
It can run 1 or two fans. The second fan (if applicable) will start 10 seconds after Fan #1 runs. The fans will operate until the air temperature is reduced by 5 degrees (C) from the set temperature.
*Note: The unit is Not WaterProof"
GlynMo said:
Erm.... "Davies, Craig Pty Ltd very own designed Digital Thermatic Fan Switch Kit can be used with our Thermatic Fans, EWP's & competitors Fans.
Simply set the temperature by pressing the set button.
It can run 1 or two fans. The second fan (if applicable) will start 10 seconds after Fan #1 runs. The fans will operate until the air temperature is reduced by 5 degrees (C) from the set temperature.
*Note: The unit is Not WaterProof"
I think they're just covering themselves mate, mine has taken a good washing a number of times and if you look at the electronics they're 100% potted in so completely sealed into the unit.Simply set the temperature by pressing the set button.
It can run 1 or two fans. The second fan (if applicable) will start 10 seconds after Fan #1 runs. The fans will operate until the air temperature is reduced by 5 degrees (C) from the set temperature.
*Note: The unit is Not WaterProof"
I'm not saying its submersible but I've had the hose on it a few times now and there have been absolutely are no issues whatsoever, and make no mistake if you compare Davies Craig build quality and wiring with the Modwise fan controller it's night and day better.
I'm using it, I've dowsed it in water, and I've put it through some pretty extreme heat conditions, and so far after all that its been perfect.... so speaking form my experience it's proving to be an excellent bit of kit.
ChimpOnGas said:
GlynMo said:
Erm.... "Davies, Craig Pty Ltd very own designed Digital Thermatic Fan Switch Kit can be used with our Thermatic Fans, EWP's & competitors Fans.
Simply set the temperature by pressing the set button.
It can run 1 or two fans. The second fan (if applicable) will start 10 seconds after Fan #1 runs. The fans will operate until the air temperature is reduced by 5 degrees (C) from the set temperature.
*Note: The unit is Not WaterProof"
I think they're just covering themselves mate, mine has taken a good washing a number of times and if you look at the electronics they're 100% potted in so completely sealed into the unit.Simply set the temperature by pressing the set button.
It can run 1 or two fans. The second fan (if applicable) will start 10 seconds after Fan #1 runs. The fans will operate until the air temperature is reduced by 5 degrees (C) from the set temperature.
*Note: The unit is Not WaterProof"
I'm not saying its submersible but I've had the hose on it a few times now and there have been absolutely are no issues whatsoever, and make no mistake if you compare Davies Craig build quality and wiring with the Modwise fan controller it's night and day better.
I'm using it, I've dowsed it in water, and I've put it through some pretty extreme heat conditions, and so far after all that its been perfect.... so speaking form my experience it's proving to be an excellent bit of kit.
GlynMo said:
Erm.... "Davies, Craig Pty Ltd very own designed Digital Thermatic Fan Switch Kit can be used with our Thermatic Fans, EWP's & competitors Fans.
Simply set the temperature by pressing the set button.
It can run 1 or two fans. The second fan (if applicable) will start 10 seconds after Fan #1 runs. The fans will operate until the air temperature is reduced by 5 degrees (C) from the set temperature.
*Note: The unit is Not WaterProof"
Not Waterproof makes it a no goerSimply set the temperature by pressing the set button.
It can run 1 or two fans. The second fan (if applicable) will start 10 seconds after Fan #1 runs. The fans will operate until the air temperature is reduced by 5 degrees (C) from the set temperature.
*Note: The unit is Not WaterProof"
Do the salt gritters grit the race tracks after gritting the public highways
GlynMo said:
Penelope Stopit said:
Not Waterproof makes it a no goer
Do the salt gritters grit the race tracks after gritting the public highways
What a defeatist attitude! If you wanted to use one, you'd just mount it in the cabin?Do the salt gritters grit the race tracks after gritting the public highways
Just washed the car and blasted it with a hose for the hundredth time, not sure now much more proof we need
Does Penelope Stopit even own a TVR?
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