newbie with heater problem!!!!!!

[wullvfr]

hello all,not only am i knew on here but i have just bought my first polo....1994 mk3 genesis coupe.

the problem is........

the heater only works on the third setting(highest)which i put down to the resistor that sits along side the heater matrix,bit now all of a sudden it only blows out cold air.

it put out warm air on friday and saturday,and whilst doing this the temp gauge stayed in and around the 70-80 mark,but now that it is only putting out cold air the temp gauge goes up to 100-110 mark.

according to the manual the needle should stay in and around the 90-100 mark..........

i have not had the chance to check any possible causes yet except for a quick check on the hoses that goe into the matrix,which were warm,not roasting hot but they were definately warm.because the temp is going up,i definately don't think the thermostat is the culprit.....possibly the system needing bled!!!!!

any tips would be much appreciated


william