heater not working

1888

my old rover 25[02] heater isnt putting out any heat at all,its still blowing. also noticed that when switching car off there a sound like engine or fan still going for about 5-10secs.any ideas what i can do
just stopped couple of days ago just in time for the snow up here,

ariba10

It works on the same principle as central heating.

Hot water being pumped through a matrix with a fan pushing air through it.

It would appear that you might have a blockage on the water side.

Or it could be that the valve that controls the flow is not working. (Hot and cold control switch)

espresso

1888 wrote: »

my old rover 25[02] heater isnt putting out any heat at all,its still blowing. also noticed that when switching car off there a sound like engine or fan still going for about 5-10secs.any ideas what i can do
just stopped couple of days ago just in time for the snow up here,

Have you checked the coolant level? Those Rovers do have a tendency to blow head gaskets, especially if you allow the coolant level to drop!

colino

As above. If you have let the water drop so significantly that you have no flow through the heater matrix, unfortunately due to the meager water capacity in the K series, you probably have already done the damage. Great little cars with innovative engines that unfortunately do suffer HGF.
Good news is that the repair is so common, and with improved parts, there is bound to be a local Rover back-street expert who will be able to fix it for you. Bad news is that with Rovers demise, their unfortunate reputation and old-fashioned image, even when repaired they have very low values.

1888

checked the water & its fine , is it possible to be a thermostat or a fuse etc??

espresso

1888 wrote: »

checked the water & its fine , is it possible to be a thermostat or a fuse etc??

The thermostat determines when the coolant flows though the radiator but it always flows though the heater matrix. As the heater blower is still working it won't be a fuse. Most likely the heater control valve that you operate from inside the car as failed or has stuck closed e.g. here - this is a common fault on some cars.

marlot

espresso wrote: »

The thermostat determines when the coolant flows though the radiator but it always flows though the heater matrix. As the heater blower is still working it won't be a fuse. Most likely the heater control valve that you operate from inside the car as failed or has stuck closed e.g. here - this is a common fault on some cars.

I agree, the Heater Control Valve is the most likely cause

Hammyman

If the engine temperature gauge is at normal running temperature its the heater control valve or a blocked up heater matrix. If it shows cold all the time or barely warm, its the thermostat.

Be aware though that at this time of year it can be a good 5 to 10 minutes before things start warming up.