Buderus GB162 User Instructions page 32

[=/h/\| The boiler is in DHW (domestic hot water) mode, or
The boiler is in pump run-over time via the external hot water cylinder
130 seconds at the minimum speed. The "Burner" LED (On/Off) is off.
[0/a/\| Boiler interval circuit.
The boiler cannot start-up more than once every 10 minutes. This program is acti-
vated if there has been a DHW request from an RC regulator more frequently
than once every 10 minutes.
[0/c/\|
The boiler prepares for a burner start-up.
There is a current heat demand or a DHW request.
[0/e/\| The boiler is standby.
There is a current heat demand, but too much energy has been supplied.
[0/h/\| The boiler is standby. There is no current heat demand.
[0/l/\|
Ignition phase. The gas valve is activated.
Table 8 Display codes (continued)
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Operating and error messages
Display codes
32