Evening all.
I presume this is a fairly common issue and my apologies if it's been covered recently, but could anyone point me in the right direction here.
Just bought (another!) 405 auto and on this one the heater fan is always on full blast, the previous owner had had to take the fan fuse out to stop the noise. I thought it may have been the heater control unit on the dash as that's where the fan speeds are controlled from but no, having disconnected the head unit the fan's still going full pelt. In fact using the fan slider seems to make the fan go even faster, so it's obviously starting from a high point.
Should I be looking at the fan unit itself under the dash/relays/any other ideas?
Thanks a million.
Carlo
re: 405 heater fan full blast
Moderator: RichardW
Re: re: 405 heater fan full blast
Sounds like the fan speed resistor may need replacing.
- Pug_XUD_KeenAmateur
- (Donor 2018)
- Posts: 1168
- Joined: 22 Apr 2013, 17:24
- Location: South Midlands / M4 / M5
- My Cars: 405 naD Est
- x 232
Re: re: 405 heater fan full blast
not sure of the cause, but the fan's everso easy to get at on these. Just remove the panel immediately below the glovebox and try an alternative one
Puxa
-
- (Donor 2022)
- Posts: 687
- Joined: 07 May 2011, 16:03
- Location: Telford, United Kingdom
- My Cars: Forte HDI 110 hatch in wicked red, SORN
Exclusive HDI hatch in quartz, SORN
C4 Picasso Exc E, Wifes
Peugeot 207cc - x 73
Re: re: 405 heater fan full blast
Agree with Elma. Excellent article on the Citroen site on how to replace. Did mine, works a treat. Transistors available on the Bay.
Regards, Harry
2000 Nov Forte HDI 110 hatch in Wicked Red; currently SORN
2000 Mar Exclusive HDI hatch in Quartz; currently SORN
2013 C4 Picasso Excl E
Peugeot 207cc 1.6 Roland Garros
2000 Nov Forte HDI 110 hatch in Wicked Red; currently SORN
2000 Mar Exclusive HDI hatch in Quartz; currently SORN
2013 C4 Picasso Excl E
Peugeot 207cc 1.6 Roland Garros
Re: re: 405 heater fan full blast
Thanks all, was indeed the fan resistor!
Fan assembly easy to get out, but typically mine had no screws holding it together as in all the manuals, and had to be prized gradually apart to get to the resistor. Once changed proved to be the culprit.
Fan assembly easy to get out, but typically mine had no screws holding it together as in all the manuals, and had to be prized gradually apart to get to the resistor. Once changed proved to be the culprit.