Main eco30 combi error 83 communication error

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30 Oct 2024
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Hi all. Looking for some help pls. I have a main compact eco30 boiler.
The display flashes on and off with E83.
When I look this up, it means COMMUNICATION ERROR. There is also a spanner flashing. The boiler runs continuously and can only be switched off at the wall, instead of being controlled by the thermostat.
When this happened I noticed that there was no power to my wireless thermostat controller.
As I thought this was the problem, I replaced for a new salus unit, and there is now power at the unit.
Unfortunately, I still have no control over my boiler, ie On/Off. It will run constantly, unless I manually switch off at the wall.
E83 flashes constantly, and I cannot reset. Have read manual, but no details are given regarding this error code.
Is this a PCB problem? Are there any internal fuses I can check? Does anyone know how to reset this?
Has any one else had this problem? If so, what was the resolution? Please help. Thank you in advance.
 
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