Master dash electrics

Newbie here. I wonder if anybody can help. I just bought a 1998 Master van for my son. While driving it (for the first time) to his home 50 miles away I realised that the temperature guage was not working although everything else seemed ok. When I got there we went for a short drive.During this the speedo and fuel guage stopped working. Getting back to his place we found that the nearside side light was not working and the nearside indicator flashing very quickly. Strangely the temperature guage started working.:confused:

I am totally bamboozled. Any thoughts?