Viessmann VITOTRONIC 300-K Manuel d'installation télécharger pdf (Page 60)

60

Displayed

fault code

System characteris-

tics

Cause Measures

bE Control mode without

remote control.

Communication

fault, Vitotrol

remote control with

mixer M3 (heating

circuit 3)

Check connections, lead

(see separate installation

and service instructions)

and coding address "A0"

in the "Heating cir-

cuit..." group.

With wireless remote con-

trol:

Place the remote control

near the wireless base

station and check connec-

tion.

bF Control mode.

No communication

via LON.

Incorrect LON

communication

module

Replace LON communi-

cation module.

C2 Control mode. Lead break, KM

BUS to solar con-

trol module or

Vitosolic

Check KM BUS cable and

device.

Without solar control unit:

Set code "54:0" in the

"General" group.

CF Control mode.

No communication

via LON.

Communication

fault, control unit

LON communica-

tion module

Check LON communica-

tion module and replace if

required.

If no LON communication

module is installed, set

code "76:0" in the "Gen-

eral" group.

d3 Control mode. Communication

fault, exten-

sion EA1

Check connections (see

page 137).

Without extension EA1:

Set code "5b:0" in the

"General" group.

d5 Boiler ramps to the

electronic maximum

boiler water tempera-

ture limit.

Boiler does not log

in at the cascade

control unit

Check communication via

subscriber check, leads/

cables to the

Vitotronic 100 and codes.

d6 Control mode. Input DE1 at exten-

sion EA1 reports a

fault

Remove fault at appliance

concerned.

Troubleshooting, Vitotronic 300-K

Fault codes

(cont.)

5601 090 GB

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