8 Troubleshooting
8.1 Error codes
Error messages from all eBUS participants are displayed. A description of the indi-
vidual errors can be found in the relevant installation and operating instructions.
The WCM-FS only displays errors, which last 15 minutes or more. Errors and rectified
errors are stored in the error history with error source, error code, date and time.
Rectified errors are displayed with error code 00.
Sensor faults
Error code
Cause
Error source
Rectification
130
Supply sensor B6 defective
WCM-EM-HC
▶
Replace supply sensor.
132
De-couple sensor defective
WCM-KA/
CPU
▶
Replace de-couple sensor.
133
External sensor B1 defective
WCM-EM-HC
▶
Replace external sensor.
134
DHW sensor B3 defective
WCM-EM-
DHW
▶
Replace DHW sensor.
135
Circulation sensor B1 defective
WCM-EM-
DHW
▶
Replace circulation sensor.
136
External room sensor defective
WCM-EM-HC
▶
Replace room sensor on the
WCM-FS.
137
Internal room sensor defective
WCM-EM-HC
▶
Replace WCM-FS.
Actuator fault
Error code
Cause
Error source
Rectification
142
PWM pump defective
WCM-EM/
CPU
▶
Check pump and replace if necessary.
Unit fault
Error code
Cause
Error source
Rectification
154
Error EEPROM
–
▶
Reset unit (see Ch. 6.7)
eBUS communication error
Error code
Cause
Error source
Rectification
180
Communication error to WCM-KA
WCM-FS
▶
Check eBUS lines, Bus level and pro-
tocol, if necessary fit screen cables.
181 … 188
Communication error to WCM-FS
WCM-KA
▶
See installation and operating instruc-
tions Cascade Manager WCM-KA 2.0.
189
Error N1 input
WCM-KA
▶
See installation and operating instruc-
tions Cascade Manager WCM-KA 2.0.
190
Communication error to WCM-EM
WCM-FS
▶
Check eBUS lines, Bus level and pro-
tocol, if necessary fit screen cables.
191 … 198
Communication error to WCM-CPU
WCM-FS
▶
Check eBUS lines, Bus level and pro-
tocol, if necessary fit screen cables.
Installation and operating instruction
Remote control station WCM-FS 2.0 and extension module WCM-EM 2.1
8 Troubleshooting
83277502 • 3/2012-10 • La
102-106
Содержание WCM-EM 2.1
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