Set Appliance State:

Isolate Mains Power to appliance as per TOPs P4

Observation:

Confirm PCB dip switches are set correctly.
Dip switch settings for S24/S30 Compact are all set to OFF, unless
system has under floor heating or CH system has an external pump.
Note:
1. Switch 1 Factory set to OFF position
2. Switch 2 Pump mode, OFF = normal mode, ON = pump only works when burner is on
3. Switch 3 45 second delay, OFF = 45 second delay re-ignition DHW demand to CH, ON = no delay
4. Switch 4 Factory set to OFF position
5. Switch 5 Integral pump, OFF = integral pump CH & DHW, ON = integral pump DHW only, CH external pump
6. Switch 6 Flow temperature, OFF = 90°C, ON = Max 50°C - Min 30°C (under floor heating)