U

ugofirst

New Member

• Dec 4, 2010

• #1

How do you test the cab heater fan speed switch on a defender 90?

Problem is it works on single speed but when you slide the switch to position 2 it makes no diferrence.

searched the other topics and was wondering if I need to replace switch or resistor?

Is there a way of testing single/double fan speed with a wire link?

Cheers

 

The Mad Hat Man

Well-Known Member

LZIR Despatch Agent

• Dec 4, 2010

• #2

Ask JPS - he is an expert on these.

 

U

ugofirst

New Member

• Dec 4, 2010

• #3

Cheers have sent a pm

 

weeee man

New Member

• Dec 6, 2010

• #4

who jps i got same prob cheers

 

U

ugofirst

New Member

• Dec 7, 2010

• #5

Checked it out further today by getting "she who must be obeyed" operate the heater control whilst I kept an eye on the fan motor.
1, When she slid the fan speed control switch down to the first click the motor was stationary

2, Fan stationary

3, When slid right down to the bottom the fan came on

Any ideas what the fix will be, new switch or resistor?

 

The Mad Hat Man

Well-Known Member

LZIR Despatch Agent

• Dec 7, 2010

• #6

most likely resistor, but unplug the fan and see if yu get volts down both supply wires, depending on switch setting.

 

blue beasty

Leaks an prone to bits dropping off

• Dec 7, 2010

• #7

cant you just by-pass the resistor?.....I mean who wants their fan on low? Its a Landy, surely off or full belt is all you'll ever want

 

The Mad Hat Man

Well-Known Member

LZIR Despatch Agent

• Dec 7, 2010

• #8

blue beasty said:

cant you just by-pass the resistor?.....I mean who wants their fan on low? Its a Landy, surely off or full belt is all you'll ever want

Click to expand...

yes - only use high setting - thats wot it does

 

blue beasty

Leaks an prone to bits dropping off

• Dec 7, 2010

• #9

The Mad Hat Man said:

yes - only use high setting - thats wot it does

Click to expand...

Thats nice then