LFP Efan update

[L8 APEX]

After arguing with Mark for over a year about the relays he used being insufficient. He finally made a change to a 10 amp heavier relay which is suppose to last. You will know the old 20 amp relay by its blue case, the 30 amp relays are black cased. I have been fixing the failed relays as they surface. LFP is not offering a free update as I would hope. So those with the blue relay may want to coordinate a repalcement with me. I have seen 3 of these fail and it seems to be around the one year mark. I will update this thread more as it develops.
Remember if your relay fails the A/C and engine cooling will not work automatically. You can still use the manual fan switch to bring on the backup relay and high speed to get you around. The fan kits have two seperate ciruits. Low speed is automatic off of temp sensor and A/C call. The high speed coil is on the manual switch normally used at the track but always there for backup use.

[PoorSvtman]

yea there was a thread over on nloc the other day about these and alot of people were complaining about the blue relays....

[dboat]

yea there was a thread over on nloc the other day about these and alot of people were complaining about the blue relays....

+1

But Terry did step up and took care of me, even long distance.. I appreciate it.
Dana

[SILVER2000SVT]

The bad thing is that Mark paid somebody for the design to put these inadequate relays in. A standard 30 amp relay is just about right for the low speed, but is still a little small for the high speed. That's why you typically see a manual switch there in other vendors designs. If you look hard enough you can find a 40 amp that plugs right into the standard 30 amp socket and that will work for the high speed side as well.

The problem is that the starting current for the fan motor is in excess of 80 amps or so, that's what fries those little relays. A standard 30 or 40 amp automotive relay is designed to handle a starting current of around 200%, those little blue ones aren't.

If your ever in a pinch and can't find a large enough relay, a simple solution is just to run more than one relay wired in parallel (preferably the same size and brand). That's what I would have done if I couldn't have found the 40amp one I used.