Set Appliance State:
Mains Power Off
Ensure NO demands are present
| WARNING! - Mains voltage is expected during test follow TOPs P4 live testing procedure |
Observation:
Ensure boiler is in DHW & CH mode (tap and radiator symbols displayed), to select DHW & CH mode press MODE button.
This diagnostic model requires the appliance to have the preheat function deactivated unless stated otherwise.
Press and hold simultaneously on the buttons + and - under the symbol to activate or deactivate the preheat function.
If ECO is displayed, the preheat is deactivated (model requires preheat deactivated).
If ECO is not displayed, the preheat is activated.
This diagnostic model requires the appliance to have the preheat function deactivated unless stated otherwise.
Press and hold simultaneously on the buttons + and - under the symbol to activate or deactivate the preheat function.
