Operating instructions

Troubleshooting
Logamatic EMS RC35 programming unit - Subject to technical modifications
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7
7.2 Fault messages and service messages
The RC35 programming unit differentiates between three types of messages:
• Faults (in boiler operation)
• Plant errors (incorrect settings on the programming unit, or component malfunctions)
• Service messages (indicating that some servicing is required)
Faults
The display shows the following message: Your system has a malfunction. Please open the
cover of the operating unit.
1. Open the flap (by pulling the recessed grip on the left).
The display may show the name and telephone number of your heating contractor if these are
programmed.
2. Turn rotary selector (several times if necessary, if there are multiple messages) to display the
message and the code (in the last row on the display).
3. Check whether you can eliminate the fault yourself with a reset (Æ page 52).
4. Otherwise notify your heating contractor immediately (stating the message and code).
To return to the standard display:
B Press or close the flap.
NOTICE: System damage due to frost!
The heating system can freeze up if it has been switched off through a fault shutdown.
B Try and reset the fault.
B If this is impossible, immediately notify your heating contractor.
The faults depend on the boiler used. Information about the faults can be found in the
boiler documentation.