Heating problem with solid fuel

[Tambo]

Hi can anyone help me I have a solid fuel Central heating system,the issue is that all of a sudden 3 bedroom radioators won't heat up the other 2 rads in the bathroom and hallway work fine as do the rads downstairs,no air locks in the rads so don't know what the problem is,if anyone could help.

 

[SimonG]

Mucky system?

 

[Best]

If it has happened all of a sudden then it's not the thermostatic radiator valves stuck off and it probably dirt in system.
Try turning all the other rads off for a couple of minutes while the heating pump is running to see if rads start to heat. Some solid fuel systems are done wrongly and air can get into pipes.

 

[Tambo]

I've already tried switching all the rads off,I'm wondering would it be better to drain the system then take it from there?

 

[joni os]

Usual October problem after heating system dormant all summer. Ensure pins in TRVs free to move, F&E tank has water and no air in system.