Coolant temp gauge not working

[dibs1980]

As per title
I've just fitted silver dials to my dash and the coolant gauge isn't working I left the car running for 35 minutes and it didn't move and there's no hot air coming through the heaters.
I did what the guide said on here about removing the needles,they came off and went on no problem
Have I knackered the dash or can it be sorted by taking the needle off and putting it back on again???
Cheers
Wayne

[Wayne]

No hot air from the heaters suggests air lock or thermostat problem

[dibs1980]

It's ok I've fixed it i just moved the needle up a wee bit and now it's working and as for the heater blowing cold air it was on the cold setting DOH school boy Error

[Foreveryoungaus16v]

 

[notenoughtime]

Pmsl

[madsb]

It's ok I've fixed it i just moved the needle up a wee bit and now it's working and as for the heater blowing cold air it was on the cold setting DOH school boy Error

Hahah!

[Len]

Nice air lock Wayne!