Technical Punto Evo Heater Problem

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Technical Punto Evo Heater Problem

noscrazy

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Hi there, I'm a new owner of a 2010 Punto GP 1.4 16v. Just recently I have noticed a few issues relating to the heater.

Before I start off, I'd just like to say I know absolutely nothing about cars!

So it seems that the heater fan sometimes doesn't like to turn on, or it will turn on once I start driving. If I have done a long drive the day before, they will turn on fine, however if I have been doing short journeys they won't turn on until I start moving. Another thing in relation is sometimes when turning the heater level dial it makes the lights surrounding that knob flicker or turn off (left side and higher buttons stay on just fine). So I'm unsure what is causing this to be honest. Also noticed Start/Stop doesn't initiate for very long (normally stays on for under 10 seconds). Could this be battery/alternator related? Also something which might be worth mentioning is when the heater/car turns off there is an audible powering down sort of whirring noise?

Please can anyone help?!

(Sorry if this is posted in the wrong section).
 
hi, and welcome
right section,

stop / start.. it relies on an EXCELLENT battery and charging system..so may just be under performing..or have an original battery that is now past its best.

heater.. read the FAQ's at the top of the Grande Punto section.
Charlie - Oxford
 
hi, and welcome
right section,

stop / start.. it relies on an EXCELLENT battery and charging system..so may just be under performing..or have an original battery that is now past its best.

heater.. read the FAQ's at the top of the Grande Punto section.
Charlie - Oxford

Thanks, I've had a read and will try a few things. Just been out for a spin in the Punto now, first of all the flickering lights is definitely a loose cable because tapping just below the radio brings them back to life, this leads me to think that there is another loose cable somewhere for the heater blower. I'll dive deeper when it stops raining :) .
 
SOme things to look to also:

Unplug the cable that goes into the heater blower itself, look and see if there is any melting or deformity.

Try with the blower on and wiggle this, it's a common fault.

The end of the blower also has 2 torx screws, try wiggle them with the fan on, if you have a brush problem that may show it.

Also try pressing down on your fuses, if one is loose it may be intermittent.

If the fan is working but the power cable plug is faulty then there are remedies that do not cost the earth that a fan does.
 
Did you manage to fix this?
I ask as I have just successfully repaired mine inc. replacing the brushes.
 
Did you manage to fix this?
I ask as I have just successfully repaired mine inc. replacing the brushes.

I never bothered to fix it fully as it sometimes seems to work with no issues and other times it will just be really temperamental. It's on my to-do list to fix, need to get the upcoming MOT sorted first!
 
Then one thing to do is also check your brushes.

If it is not the connector problem ten it may be the brushes, mine has corrosion around the brass channel that the brush went down.
Removing the brush, cleaning this channel out with sandpaper and fitting some new brushes that I had to sand down to fit has restored it.
Checking for continuity across the pins of the connector (or the brush connections) should show if the brushes have failed, also a very pitted/scored/covered in carbon armature can cause similar issues.

Post again when you eventually get around to it, evenb if the connector is burnt out it is repairable and should not require a new one, saving lots of dosh.
 
I never bothered to fix it fully as it sometimes seems to work with no issues and other times it will just be really temperamental. It's on my to-do list to fix, need to get the upcoming MOT sorted first!

Ignore my above response, blower has decided to completely pack up today. You timed it perfectly on your follow up lol. Will see if I can get a look at it this weekend, but I'm thinking the connector bit has melted based on how It's functioned before. If I don't have time to look at it, It's going for MOT on Monday anyway so I'll get my mechanic to take a look at it then.
 
Then one thing to do is also check your brushes.

If it is not the connector problem ten it may be the brushes, mine has corrosion around the brass channel that the brush went down.
Removing the brush, cleaning this channel out with sandpaper and fitting some new brushes that I had to sand down to fit has restored it.
Checking for continuity across the pins of the connector (or the brush connections) should show if the brushes have failed, also a very pitted/scored/covered in carbon armature can cause similar issues.

Post again when you eventually get around to it, evenb if the connector is burnt out it is repairable and should not require a new one, saving lots of dosh.

Went to the mechanic today to do the MOT and have a look at the blower, he thinks It's the resistor on the way out. Like I've read on here before, he said the speed settings will eventually stop working and only work on 3/4. Will get it sorted on next pay day. On a good note, MOT passed with no advisories, yay!
 
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