Brand: Worcester
Category: Boiler
Manual Type:
Language:
Manual for Greenstar 4000 - Troubleshooting and error codes + PDF Download
Uploaded: April 8, 2025, 3:08 a.m.
Manual Publish Date: 2020-09
Warranty Summary
This appliance has a guarantee against faulty materials or workmanship from the date of installation subject to terms and conditions. Please see full terms online.
- Check System Pressure: Regularly ensure pressure is maintained, recharge if below 0.8 bar.
- Topping up System Pressure: Use filling key or external loop as instructed by installer.
- Control Panel Operation: Use buttons for heating, hot water, menu navigation, and settings adjustments.
- Adjust Flow Temperature: Set maximum flow temperature for heating and DHW using control panel.
- Set Time Program: Program heating and hot water schedules if Key accessory is fitted.
- Troubleshooting: In case of fault, reset appliance and consult troubleshooting section for error codes.
Troubleshooting and error codes
| LED status | Description of the LED displays |
|---|---|
Flashing red: | Fault, e.g. no communication between the Key and appliance:
|
Flashing yellow: | No fault, user please wait. |
Flashing green: | No fault, initialisation process is running. |
Constant red: | Temporary fault:
|
Constant yellow: | No fault, time and date not available:
|
Constant green: | No fault, normal operating condition. |
LED Off: | No fault, power-saving mode or appliance without power. |
Troubleshooting and error codes
| LED status | Description of the LED displays |
|---|---|
Flashing red: | Fault, e.g. no communication between the Key and appliance:
|
Flashing yellow: | No fault, user please wait. |
Flashing green: | No fault, initialisation process is running. |
Constant red: | Temporary fault:
|
Constant yellow: | No fault, time and date not available:
|
Constant green: | No fault, normal operating condition. |
LED Off: | No fault, power-saving mode or appliance without power. |