heater fan not working!!!

[pclarke]

hiya
i need help with my 1990 xj40. the fan has just stopped working the other day on all fan speeds and control panel does not light up at all. i took it to my local jag center and they thought it was the panel, after trying 4 others in its place the fan is still not working. can anyone help please?

[jimxk8]

hi there you say theyve tried a new panel i presume fuse have been checked.next thing to do is check feed to the motors.there is a relay inside each heater box that goes wrong.hope this helps

[paul810]

Hi there i had a similar fault on my 93 xj40 but only realised that only one fan motor was working and then that died so no blowers checked motors and they both worked after further investigation found that in each blower casing there is a heat sink and water leaks directly onto them causing them to corode over time there is a resistor on each blower casing soldered in the circuit board which is silver in colour and round like a 20 pence piece with 2 screws securing it to the board these are what fail and a replacement costs pence but they require being soldered into the circuit board i replaced mine and i get excellent defrosting of the screen this is a very common fault as i would think at least half of jags this era only have one blower working as people do not realise there are 2 and water gets to them all so age and corrosion takes its toll
regards paul