Dodgy VRT 360f ?

[chieflasagnaeater]

I've just tried to install a vrt 360f RF thermostat to my Vaillant 831 combi and it doesn't work.
Connected the receiver up to the eBus (2 wires), removed the old thermostat and placed a jumper between terminals 3 and 4 as advised in the manual.
The receiver has 2 status LED's. The green is on = ok. The red is also on = NOK (means there is a RF type error)
The Transmitter LCD also reads 'RF error'

I'm a bit stumped and think I've followed the instalation instructions correctly. Does this mean the unit is likely to be faulty? Are there any other checks/diagnosis I can do?

Thanks...

 

[Tipper]

What distance/floors are between the 360f and the boiler? Are there any thick brick, block or concrete walls/floors between them. Is the receiver shielded by adjacent metal including pipework and the boiler casing itself?

Take the 360f to the receiver and see if it works OK there.

Try a different battery in the 360f.

 

[landyandy]

Try turning the boiler off, then back on.

This can get the receiver back on track.

Andy.

 

[telsokari]

hi there,

I have had this installed recently but its displaying "Com ERR".

I have tried putting the thermostat bit next to the receiver and it still displays the error. i have checked the installtion site and it looks right.

Sometimes when switching the boiler off and then on again it will work ok for a while and then go back to showing the error with the red led

Anyone know how to fix this?

Thanks

T

 

[ronmanager]

Press and hold both P and the dial on the thermostat together for 3 seconds to enter the engineer mode. This alone should reconnect your thermostat with the receiver attached to the boiler. Then press P again to exit and you should be back in business with no RF Err message.