Sport Passenger side heater only blowing slightly warm air

sheriff · Dec 11, 2021

Hi all, bin a while (cancer & covid) but all good now we’ll except for her majesty who has in the last cold snap decided to blow hot air drivers side but only like warm air passenger side, any ideas/fixes would be much appreciated
Ta muchley
L320 3.0 diesel HSE. 2010.

Mark Piercy · Dec 12, 2021

sheriff said:
Hi all, bin a while (cancer & covid) but all good now we’ll except for her majesty who has in the last cold snap decided to blow hot air drivers side but only like warm air passenger side, any ideas/fixes would be much appreciated
Ta muchley
L320 3.0 diesel HSE. 2010.

Glad to hear your OK kiddo, jeez what a year..

Sounds like a sticky flap

Do you have any diagnostics that'll talk to the heating system and report back movement?

Nodge68 · Dec 12, 2021

Run a diagnostic on the HVAC system, which will probably report a blender stepper has stopped functioning, which is pretty common.

sheriff · Dec 12, 2021

Thanks guys, going for diagnostic tomorrow, let you know.
Great to be back

sheriff · Dec 13, 2021

Well now here’s a thing, fault codes as follows B1085 = defrost damper motor, B1082 = Right temp damper motor, bit odd when drivers side belts hot air out but it’s the passenger side that only blows Luke warm, just wondering if there could be a bit of debris causing blend door to stick.
Any ideas would be gratefully received.
Ta muchley
Phil

Nodge68 · Dec 14, 2021

sheriff said:
Well now here’s a thing, fault codes as follows B1085 = defrost damper motor, B1082 = Right temp damper motor, bit odd when drivers side belts hot air out but it’s the passenger side that only blows Luke warm

Maybe not.
If the RHS is stuck in the full hot position, then it would make sense that the temperature sensor is returning a hot signal, so the system is trying to cool the cabin, using then only functional blend damper, which is on the LHS.
Just a theory anyway.

sheriff · Dec 15, 2021

Cheers for that nodge, but both sides will blow cold on cold but only drivers side blow hot on hot

sheriff · Jan 8, 2022

Hi all , happy new year
Anyone got any idea best place to feed an inspection camera down the air vents to check passenger side blend motors, still showing no fault codes but mechanic mate of mine says they don’t always as they can work but not fully if that makes sense, ta muchley, Phil

Sport Passenger side heater only blowing slightly warm air

sheriff

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Mark Piercy

Well fumbled member....

Nodge68

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sheriff

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sheriff

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Nodge68

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sheriff

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sheriff

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