J
Jennifer JonesSep 13, 2025
What to do if there is no water flow in my IDEAL LOGIC 18?
- NNatalie SanchezSep 13, 2025
If your IDEAL Boiler has no water flow, further assistance is needed.

What to do if there is no water flow in my IDEAL LOGIC 18?
If your IDEAL Boiler has no water flow, further assistance is needed.
| Category | Boiler |
|---|---|
| Output | 18 kW |
| Dimensions (H x W x D) | 700 x 395 x 278 mm |
| Boiler Type | Combi |
| ERP Rating | A |
| CH Output (kW) | 18 kW |
| Fuel Type | Gas |
| Mounting | Wall-mounted |
Boiler installation requires a Gas Safe Registered Engineer in accordance with regulations.
Reduced bottom clearance of 5mm is allowed with an easily removable panel.
Adjusts central heating radiator temperature up to a maximum of 80°C.
Controls room temperature automatically based on outside weather conditions.
Set the mode control knob to OFF to shut down the boiler.
Repeat the procedure detailed in 'To light the boiler'.
Guidance on protecting the system from frost during cold weather.
Boiler shuts down on overheating; fault code L-1 displayed.
Occurs during flame failure; fault code L-2 displayed.
Instructions for defrosting a frozen condensate pipe using warm water.











Loading...