Heater not working

[terranosaurusdoug]

Hello everybody, haven't been using Sarah due to being busy with work, had this week off to spend with my boy :thumb2

I opened the drivers door to find a wet squelchy carpet in the foot well, from what I found from doing a search on here that is probably leaking in from under the wiper mech.

BUT...I could not find much on the cabin heater, mine won't blow hot. I put the fan on full and moved the heat control knob from hot to cold to hot and so on and I can hear a change of noise and slight drop of blower speed which I think means it is working ok and diverting air over the heater matrix, just no heat, I asked Rick quickly at Wales meet and he mentioned something about a hard to get to diaphram, anyone any ideas??? Thanks lads.

 

[rayf3262]

There is a download that should help...
here:http://www.nissan4x4ownersclub.com/downloads/workshop/wk20.pdf

 

[Monaro Pete]

Going by what you're saying I'd say your heater matrix has gone. Have you checked the coolant level? Has it dropped?

 

[terranosaurusdoug]

Going by what you're saying I'd say your heater matrix has gone. Have you checked the coolant level? Has it dropped?

No I haven't, I hope that's not why my carpet is wet :doh

 

[jims-terrano]

check below the servo as if I remember there is a grommet for cables, this may be letting in the water.

 

[solarman216]

stick your finger into the wet carpet and taste it if it tastes the same as your rad water then yes matrix or hoses/pipes have developed a leak, but and there is always a but, a leak will not stop the heater blowing hot air, if you look at the last pic in the linky put up by Rayf you will see the diaphragm I was talking about, whatever the whole dash has to come out to rectify any of those faults, best of luck, Rick

 

[Monaro Pete]

Rick.
The last time I had a matrix go (which was quite a few years back) it stopped blowing warm.