Difference between revisions of "Cooling Fans"
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Your fans should start to work when reaching 3/4 on the temperature guage scale. | Your fans should start to work when reaching 3/4 on the temperature guage scale. | ||
| − | Test 1 | + | <u>Test 1</u> |
The first step is to remove the connector from the switch on the thermostat housing and ground it directly. The fans should work begin to work. | The first step is to remove the connector from the switch on the thermostat housing and ground it directly. The fans should work begin to work. | ||
| Line 48: | Line 48: | ||
If the fans come on you either have a stuck thermostat or a bad switch. | If the fans come on you either have a stuck thermostat or a bad switch. | ||
| − | Test 2 | + | <u>Test 2</u> |
If the fans still do not come on, it's time to inspect fuses. | If the fans still do not come on, it's time to inspect fuses. | ||
| Line 54: | Line 54: | ||
There are 3 fuses in the circuit, one for the supply to the fans relay (30A), and one for each fan individually (15A). Chances are if neither fan comes on it will be the main fuse or the cooling fan relay. The good news is the relay and the 15A fuses are above the instrument cluster, the bad news is the 30A fuse is in the maxi-fuse box on the tunnel top behind the dash. | There are 3 fuses in the circuit, one for the supply to the fans relay (30A), and one for each fan individually (15A). Chances are if neither fan comes on it will be the main fuse or the cooling fan relay. The good news is the relay and the 15A fuses are above the instrument cluster, the bad news is the 30A fuse is in the maxi-fuse box on the tunnel top behind the dash. | ||
| − | Test 3 | + | <u>Test 3</u> |
Check for poor earth connection to top bolt of Rad support frame. | Check for poor earth connection to top bolt of Rad support frame. | ||
| − | Test 4 | + | <u>Test 4</u> |
Check for corrosion on all inline conectors and fuses | Check for corrosion on all inline conectors and fuses | ||
Revision as of 15:16, 17 July 2007
Contents
Background
The cooling fans are not bespoke to the Élan they were obtained from the Valeo parts bin. The Lotus Élan utilizes two such fans. As for commonality the same unit is in common use on the Renault 25 AR4 Automatic transmission.
Lotus do not stock these assemblies as they are now obsolete.
Common Faults
The two most common faults are heavy corrosion and the electric fans tend to seize.
Replacement Parts
OEM replacements are available by / AEP based in Scotland.
They can provide a new OEM cooling fan and shroud manufactured by Valeo for approximately £68 each.
Renault can provide a new OEM cooling fan and shroud manufactured by Valeo for approximately £176:85 each.
OEM Part Numbers
Old Lotus part number A100K0017F (Now obsolete) New Lotus part number A100K6024F (Now obsolete)
AEP DIRECT CF627
UK Renault 7700795199 UK Renault 7700802142
FrigAir 0509.1627 Aimrad 0509.1627
Testing the old fans
The warning signs
Your fans should start to work when reaching 3/4 on the temperature guage scale.
Test 1
The first step is to remove the connector from the switch on the thermostat housing and ground it directly. The fans should work begin to work.
If the fans come on you either have a stuck thermostat or a bad switch.
Test 2
If the fans still do not come on, it's time to inspect fuses.
There are 3 fuses in the circuit, one for the supply to the fans relay (30A), and one for each fan individually (15A). Chances are if neither fan comes on it will be the main fuse or the cooling fan relay. The good news is the relay and the 15A fuses are above the instrument cluster, the bad news is the 30A fuse is in the maxi-fuse box on the tunnel top behind the dash.
Test 3
Check for poor earth connection to top bolt of Rad support frame.
Test 4
Check for corrosion on all inline conectors and fuses
