What to do if my Worcester Comfort+ I RF/Stat RF shows A91 error?
If your Worcester Control Unit displays error code A91, it indicates a communication problem via EMS or that the control unit isn't connected to a heat source. First, verify the EMS connection. Also, ensure that the key is correctly installed.
Why does my Worcester Comfort+ I RF/Stat RF Control Unit say A61?
If your Worcester Control Unit is showing error code A61, it means there is no wireless signal. To resolve this, check the signal strength and try repositioning the control unit to a better location.
What does red flashing LED mean on Worcester Control Unit?
If the LED on your Worcester Control Unit flashes red once per second, this indicates a local program fault. You should check the control units for faults.
General| Brand | Worcester |
|---|---|
| Model | Comfort+ I RF/Stat RF |
| Category | Control Unit |
| Language | English |
Explains signal words (DANGER, WARNING, CAUTION, NOTICE) and their meanings regarding risks.
Covers essential safety rules for installation and operation, including electrical safety and frost protection.
Describes the unit's role in controlling heat sources based on room temperature.
General installation advice, electrical work safety, and isolation procedures.
Step-by-step instructions for installing the wireless key into the heat source.
Details the process of connecting the control unit and key, and initialisation.
Guidance on selecting the location and physically mounting the control unit.
Lists possible fault codes for the user interface and key, with remedies.
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