hi my husband replaced the fuse on the back of the boiler as we were getting error code W45 H since then he tried it and it came up E 255 h. Now we have nothing on the control panel just a flashing tool spanner and the time can anyone help please the van is a 2014 model
You can search online for some of the error codes that are not mentioned in the handbook. I found this "255 Heater has no 12v supply.
No connection between panel and boiler. Check 12v supply.
Remake connection to panel." First thing to check is whether the master switch is on.
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