Climate control: no warm air - Alfa Romeo Forum
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Climate control: no warm air

Getting no warm air from the climate control for a few months now. No matter what temp you set it to.
A budgie breath of warmth when the car's on a long journey but when you apply more than one bar of fan it's lost to the cold. No fun in winter. An Alfa dealer said it's returning a fault but not which one it actually is. They suspected the water pump and I recently had to pull over on the motorway as the computer said "engine coolant warning: stop and switch off engine"; but the temp needle instantly went back to the normal 90 as I pulled over . I would've thought that if it was the pump it'd be completely knackered, or not. Not be ambiguous about it. It's not done it since.
Coolant is fine, as are the hoses Etc.
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Coolant system is probably just air locked.
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Has the waterpump been changed?
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I've had similar (in my 159) since the thermostat was replaced a couple of weeks ago. Getting more that a budgie's breath, more a cat's breath (without the fishy smell) of warm air, but as you say, when the fan's turned up, the cold from outside overwhelms it. It is warmer when the engine is under load though.

The temp guage sits at a rock solid 90 degrees when warmed up.

I took it back to the garage who changed the thermostat (local indie italian car specialist). They thought it was an airlock but after trying to sort it for about an hour, no joy.

It's going back to them next week for further investigation as the heater worked fine before the thermostat was replaced. The chappie at the garage suspected that the new thermostat may be faulty.

Dunno if any of that helps, but I'll try to remember to update this when it's back from the garage.
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Got the 159 back from the garage and it looks like my issue was down to the water pump as per 159_kid's comment above.

The garage showed me the old water pump and it was slipping. Not sure how to describe it best really, but you could turn the blade part round independently by hand.

Just surmising here, but the old thermostat had been sticking open, so maybe the new thermostat when closing increased the load on the water pump, and the problem with the heater arose because the pump couldn't muster enough oomph to get a decent supply of hot water to the heater matrix..?

Anyway, all seems ok now, fingers crossed. Hope that's of some help stimpycp.
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air , climate , control , warm

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