Radiant RK 55 - Additional Error Codes; Function Codes

USER INSTRUCTIONS
RK 55 - RAD - ING - MAN.UT – 1311.1 - DIGITECH CS MIAH4 6
Code E18 Inadequate circulation
. ( associated symbol ). Call the Service Centre.
Code E21 General malfunction inside the printed circuit board.
( associated symbol ).
 Switch off the power supply at the main switch and then switch it on again;
 When the error code on the display disappears, the boiler will restart automatically.
If the problem persists, Call the Service Centre.
Code E22 Parameter programming request.
( associated symbol ).
 Switch off the power supply at the main switch and then switch it on again;
 When the error code on the display disappears, the boiler will restart automatically.
If the problem persists, Call the Service Centre.
Code E35 Flame detection malfunction.
( associated symbol ).
 Press Reset button ‘ ’ on the control panel to reset the error;
 When the error code on the display disappears, the boiler will restart automatically.
If the problem persists, Call the Service Centre.
Code E40 Electric power supply out of the operation range
. ( associated symbol ).Call the Service Centre.
Function codes
Code F08 Frost protection function (central heating circuit) ON. Wait for the completion of the operation.
Code F09 Frost protection function (D.H.W circuit) ON
. (RS version only - with connection to a remote storage
cylinder). Wait for the completion of the operation.
Code F28 Legionella Prevention Function. (RS version only - with connection to a remote storage cylinder).
Wait for the completion of the operation.
Code F33 System purging function ON. Wait for the completion of the operation.