heater problem after coolant change

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tay
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heater problem after coolant change

Post by tay » Sat Sep 19, 2015 5:47 pm

Hi folks,bit of advice needed please.just changed a couple of hoses and the stat,went through bleeding process bottom hose hot fans kicking in etc.when switching on heater seems to blow cold unless turned to highest setting .it's a 2-5. diesel with the digital heater controls.Cheers Tay.
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Gasy
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Re: heater problem after coolant change

Post by Gasy » Sat Sep 19, 2015 6:07 pm

Try bleeding it again tomorrow
Mine burped some more air out the next day

Are all the heater connector rods conected in the front foot wells to operate heater
Gas safe heating engineer / plumber if you need any advice just shout.
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tay
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Re: heater problem after coolant change

Post by tay » Sat Sep 19, 2015 7:19 pm

Will try again tomorrow and check connections,thanks for the reply
i chose not to choose life ....i chose a bongo instead
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Northern Bongolow
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Re: heater problem after coolant change

Post by Northern Bongolow » Sat Sep 19, 2015 8:03 pm

dont they all with the digital controls act weird, doesnt it depend on if its in the sun, or if the cabin is up to temp etc,etc.???


lean under the front heater fan under the bonet and check the heater pipes in and out, if they are very hot its down to the controllers of the heater.
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tay
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Re: heater problem after coolant change

Post by tay » Sun Sep 20, 2015 8:21 am

Cheers ady I was thinking it may be something else as it was like it before I did coolant change,I thought it was maybe the stat but I've replaced that so I can rule that out.would it be the actual control panel inside the van I need to replace.
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Re: heater problem after coolant change

Post by Gasy » Sun Sep 20, 2015 9:12 am

Probaly the fan resistor thing that controlls fan speed
Or fan full of water
Gas safe heating engineer / plumber if you need any advice just shout.
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Re: heater problem after coolant change

Post by g8dhe » Sun Sep 20, 2015 10:28 am

If its the digital version and the fans ONLY blow when set to Max. then normally its the transistor blown, at the Max. setting a relay bypasses the transistor. They are replaceable see http://www.dalbani.co.uk/2sd1525-toshib ... 5-buy.html
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tay
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Re: heater problem after coolant change

Post by tay » Sun Sep 20, 2015 10:40 am

The fans blow ok it's the temperature I'm getting a problem with when I set it to max 32 degrees they are hot turn down 1 degree and they go cold.
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wonkanoby
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Re: heater problem after coolant change

Post by wonkanoby » Sun Sep 20, 2015 10:43 am

if your bleeding it again take the extra time and back flush the heater matrix with a hose first
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Re: heater problem after coolant change

Post by Diplomat » Sun Sep 20, 2015 10:54 am

g8dhe wrote:If its the digital version and the fans ONLY blow when set to Max. then normally its the transistor blown, at the Max. setting a relay bypasses the transistor. ...

Don't you just love improvements to things which worked fine in the earlier version? I often yearn for a newer Bongo but apart from the smarter looking front I wonder if I would be buying into a new set of problems.


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tay
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Re: heater problem after coolant change

Post by tay » Sun Sep 20, 2015 11:07 am

They are a Labour of love,but with the help of every one on here you always end up with a good outcome
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Re: heater problem after coolant change

Post by Northern Bongolow » Sun Sep 20, 2015 9:26 pm

has anyone mentioned the little fan and sensor next to the passy side glove box, the little grill thing, doesnt that need a hoover out every now and again.

im with frank on this one, i was at the do i replace stage or weld my old one, im glad to say i welded it. you can keep your improvements, it was good the first time. =D> =D> :wink:
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Re: heater problem after coolant change

Post by g8dhe » Sun Sep 20, 2015 9:34 pm

Geoff
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Re: heater problem after coolant change

Post by Northern Bongolow » Sun Sep 20, 2015 9:38 pm

thats the little chappie thanks geoff. doesnt this do the cabin sensing, so if the cabin is hotter the preselected temp the unit wont give heat, it will actually try to cool it to the selected temp.
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Re: heater problem after coolant change

Post by g8dhe » Sun Sep 20, 2015 9:40 pm

Yup thats right, it will feed cool air in.
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