2019 Transit Custom fan blower fault.

[Ecost]

Hi everyone.

Ive joined your forum to see if anyone has had any similar issues to me with their vehicle.

To briefly explain the fault.
The fan speed control knob regularly does not control the fan speed correctly. There will be a short 1-2 second burst of fan blower then down to minimum fan speed. The lights on the fan speed control knob do not change.

If I select the max cooling or max heating the same happens.

occasionally the system works exactly as it should.

My questions please.

1. I have heard this is a known fault.?

2. Is this diagnosable with fault codes with any diagnostics.?

3. My research online has seen there have been instances where a fan resistor has been the cause?

Any advice would be very gratefully received .

Thanks

 

 

 

[unofix]

A1. Never seen that fault mentioned on this forum before.

A2. With FORScan and the vLinker FS lead it may very well be possible to get a DTC for the HVAC system.

A3. The failure of the resistor pack (older vehicles) causes speeds 1,2,3, to not be available and the fan will only run on speed 4.

FORScan (for windows): https://forscan.org/download.html

vLinker FS cable: https://www.amazon.co.uk/Vgate-vLinker-Adapter-FORScan-MS-CAN/dp/B0952P4MLP

[pincomat]

Hi @Ecost

Did you ever get to the bottom of this issue?  I am experiencing what sounds like the same problem with my 2021 transit custom.

[unofix]

5 hours ago, pincomat said:

Did you ever get to the bottom of this issue?

It would seem that Ecost is yet another OPW.

Joined 7th June, Posted 7th June, Last visited 7th June.

[Gedders]

Hi, I have exactly the same problem as Elliot has, the fan works for 3-4secs when turned to full then goes to slow speed with all lights showing max. I then turn the blower off for 2 mins and back on I then get around 20secs full blower before it goes slow again!! not sure what to check. (2019 2.0)

[unofix]

See my reply above (7th June 2023). Use FORScan and read the DTC's for the HVAC.

 

FORScan (for windows): https://forscan.org/download.html

vLinker FS cable: https://www.amazon.co.uk/Vgate-vLinker-Adapter-FORScan-MS-CAN/dp/B0952P4MLP