HVAC Fan Problems after S1 to S2 MyIQ upgrade

[radarlaserau]

Hey Guys

Just finished upgrading my series 1 to a MyIQ.

Problem is, I have lost Fan functions and control.
I can see the temperatures of the DZ HVAC resistor mod on the MyIQ and I have no errors on my OBDII

I have checked all known fuses and tested function of the fan with my S1 SZ HVAC.

Any clue where to start in diagnosing? has anyone had this fault before

[jezzab]

Sounds like it's a SZ HVAC and needs to be flashed to dual zone.

[radarlaserau]

Sounds like it's a SZ HVAC and needs to be flashed to dual zone.

Thanks for the tip mate
Is there anyway to tell a DZ from a SZ.

I removed the HVAC module with the MyIQ from the same Series 2, assumed it would be a DZ?? So I had it resistor modified when I had my IQ flashed.

Have purchased a second 'what i hope to be a DZ' HVAC and waiting on RS components to send me the resistors. So ill see if that makes any real difference.

Ps. No JayCar I could find around Adelaide stocks the 2.6K 5.6K resistors, They have everything but those two ohm values

[radarlaserau]

Fixed
The original installer of the resistor's did a nice soldering job, but failed to protect the resistor legs from contacting a pad on the HVAC board, slipped plastic sheet between board and resistor, problem fixed.

[jezzab]

Fixed
The original installer of the resistor's did a nice soldering job, but failed to protect the resistor legs from contacting a pad on the HVAC board, slipped plastic sheet between board and resistor, problem fixed.

Yup that would do it

Good stuff