Hi MSC members,
My wifes beloved Micra, 1996 1.0, 36k miles, has developed it's first fault in 5 years (now that's japanese reliability for you!)
The problem is the heater. When the engine is warmed up I get only cool air coming from the vents (all locations). I have checked the following:
So, I'm a bit stuck now. My only guess after searching these forums is to strip out the dash and replace the heater matrix, but I'm worried that changing it won't be the thing and it's quite a big job to take on although I am pretty handy with cars. I was thinking of changing the Thermostat just to be sure but thought I'd take advice first.
Any help you can offer is grand. I sense that the MSC, now that I have found it, will be a great place to share my future plans for the car as well, but that's for another day!
PS - I've searched forums and found the following which I don't think apply:
Pollen Filter blocked - N/A, the blower is giving good flow on hot or cold selection and I think this is for A/C cars only?
My wifes beloved Micra, 1996 1.0, 36k miles, has developed it's first fault in 5 years (now that's japanese reliability for you!)
The problem is the heater. When the engine is warmed up I get only cool air coming from the vents (all locations). I have checked the following:
- The cable from the Hot/Cold controlling the valve is moving the white lever at the bottom of the heater assembly.
- The lower pipes from the thermostat and into the car are getting nice and hot to touch, the top pipe is just warm. This suggests to me that the thermostat is ok.
- Heater Fan works all settings.
- Good Flow on all vents at all speeds.
- Cool air from all vents, not just centre ones. But marginal 2 degree increase between full hot and full cold.
- No leaks apparent anywhere.
So, I'm a bit stuck now. My only guess after searching these forums is to strip out the dash and replace the heater matrix, but I'm worried that changing it won't be the thing and it's quite a big job to take on although I am pretty handy with cars. I was thinking of changing the Thermostat just to be sure but thought I'd take advice first.
Any help you can offer is grand. I sense that the MSC, now that I have found it, will be a great place to share my future plans for the car as well, but that's for another day!
PS - I've searched forums and found the following which I don't think apply:
Pollen Filter blocked - N/A, the blower is giving good flow on hot or cold selection and I think this is for A/C cars only?