Technical Heaters don't blow warm
- Thread starter alexwr92
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Technical Heaters don't blow warm
Thay take heat from engine coolant..
so cold coolant -cold air
Thermostat probably..what does temp gauge show..?
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alexwr92
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The temp gauge goes to half way all time ever under or over but it only takes 5 min to get to half
Sounds like there's an airlock stopping the hot coolant getting to the heater matrix. The other possibility is the heater control itself may not be working correctly
From cold, start the engine and under the bonnet, feel the top hose and heater hoses. The heater hoses should get warm gradually as the engine warms, the top hose gets some heat conduction, but should suddenly get hot as the stat opens.
If heater hoses not getting warm, you have an airlock. Top heater hose may well have a bleed screw in it, so bleed it.
If that is OK, inside car, head under dash, try to determine if heater is getting hot inside heater box. As the Grande is a sister to the Corsa D, heater box may well be behind the glovebox.
Now, you need to see if the heater controls are moving the flaps. The levers are on the outside of the box, so should be possible to see.
Sometime through this lot, it should become apparent what is wrong.
If heater hoses not getting warm, you have an airlock. Top heater hose may well have a bleed screw in it, so bleed it.
If that is OK, inside car, head under dash, try to determine if heater is getting hot inside heater box. As the Grande is a sister to the Corsa D, heater box may well be behind the glovebox.
Now, you need to see if the heater controls are moving the flaps. The levers are on the outside of the box, so should be possible to see.
Sometime through this lot, it should become apparent what is wrong.
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Does the fan work properly? Just asking as this is a point of weakness, wiring and resistors fail.
Also have you ever replaced the pollen filter (behind the heater matrix - see here: https://www.fiatforum.com/grande-punto-guides/149411-how-install-replace-pollen-cabin-filter.html) that can stop airflow
Also have you ever replaced the pollen filter (behind the heater matrix - see here: https://www.fiatforum.com/grande-punto-guides/149411-how-install-replace-pollen-cabin-filter.html) that can stop airflow
burrowsdeano
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Do you have a conventional heater or climate control?
