radiator fan blowing fuses on high speed - Help please!
Posted: 20 Jun 2018, 20:02
Ok folks,
when I bridge the radiator fan on high speed it pops the fuse.
I was trying to fit a chicken switch.
I cut the wires one at a time...the power to the fan and put one of those wag connectors in
with the wag connectors in, and the fan doing nowt, no fuses blow so I haven't got a dead short there.
Add the cables to the switch, and with the switch off, no blown fuses.
Switch it on, and the fuse blows.
So I stripped out the cables to the switch from the wagg connector and replaced the fuse, all good. No immediate fuses blowing
tested the fan by bridging the connections. All ok at the low speed...but the high speed is blowing the fuse. Immediately.
So - is the fan motor pulling too much and is need of replacement...or have I buggered it.
(although I'm pretty sure its been blowing fuses at high speed previously, - i just hadn't made the connection)
Should add - I'm using a red 16A fuse
any useful tips appreciated
Em
Thinking on this....I suppose I could put the chicken switch on the low speed and run it pretty much constantly....I thought my thermoswitch was buggered...But I guess it was blowing fuses instead calling for the high speed. I'm not sure if I can hear the low speed when the engine is running...
another question...on the two speed switch - is it the low or high speed it calls? I have the wiring for the two speed...but the thermoswitch I took out and replaced some years back has the single setting...Now starting to wonder if the van has only generally called on the low speed.... hmmmmm
when I bridge the radiator fan on high speed it pops the fuse.
I was trying to fit a chicken switch.
I cut the wires one at a time...the power to the fan and put one of those wag connectors in
with the wag connectors in, and the fan doing nowt, no fuses blow so I haven't got a dead short there.
Add the cables to the switch, and with the switch off, no blown fuses.
Switch it on, and the fuse blows.
So I stripped out the cables to the switch from the wagg connector and replaced the fuse, all good. No immediate fuses blowing
tested the fan by bridging the connections. All ok at the low speed...but the high speed is blowing the fuse. Immediately.
So - is the fan motor pulling too much and is need of replacement...or have I buggered it.
(although I'm pretty sure its been blowing fuses at high speed previously, - i just hadn't made the connection)
Should add - I'm using a red 16A fuse
any useful tips appreciated
Em
Thinking on this....I suppose I could put the chicken switch on the low speed and run it pretty much constantly....I thought my thermoswitch was buggered...But I guess it was blowing fuses instead calling for the high speed. I'm not sure if I can hear the low speed when the engine is running...
another question...on the two speed switch - is it the low or high speed it calls? I have the wiring for the two speed...but the thermoswitch I took out and replaced some years back has the single setting...Now starting to wonder if the van has only generally called on the low speed.... hmmmmm