To Next PageTo Next PageWhat to do if my Ideal Heating LOGIC SYSTEM 2 S15 Boiler has no hot water and no central heating?
First, ensure the mains power is on and 'Mode ON' is displayed at the bottom of the screen. If it's not, press the button to activate it. If the problem continues, contact a Gas Safe registered engineer.
How to fix no central heating on my Ideal Heating LOGIC SYSTEM 2 S15?
First, check that the mains power is turned on and that 'Mode ON' is displayed at the bottom of the screen. If it's not, press the button to activate it. Also, ensure that the programmable room stat or timer are calling for heat. Finally, verify the time settings on the programmer and adjust them if necessary.
Safety regulations and essential precautions for operating the boiler.
Details on the required electrical supply, voltage, frequency, and fusing.
Step-by-step instructions for initiating the boiler's operation.
Explanation of different modes like Winter/Summer and Boiler Off.
Guidance on adjusting water temperature with and without an outside sensor.
Tips for optimizing boiler efficiency and reducing gas consumption.
Description of the frost protection feature and its operation.
Procedure for completely removing power from the boiler.
Instructions for thawing a frozen condensate pipe.
Details on the boiler pump's automatic self-check function.
Required clearances around the boiler for installation and servicing.
Steps to take if a gas leak is suspected.
Guidance on cleaning the boiler and requirements for annual servicing.
Identifying and addressing loss of central heating system pressure.
Procedure for re-pressurising the central heating system if pressure drops.
Contact information and boiler restart procedure for user queries.
Guides for diagnosing and resolving common no hot water or heating faults.
Explanation of various codes displayed during normal boiler operation.
List of fault codes, their descriptions, and recommended actions.
The Ideal Logic System² S is a high-efficiency, condensing system boiler designed for central heating and domestic hot water applications. It features full-sequence automatic spark ignition and fan-assisted combustion, ensuring reliable and efficient operation. Due to its high efficiency, the boiler produces condensate from the flue gases, which is drained through a plastic waste pipe at the base of the unit. A condensate "plume" may also be visible at the flue terminal during operation.
Installation and any subsequent work on this appliance must be carried out by a Gas Safe Registered engineer in accordance with current Gas Safety (Installation & Use) Regulations. It is crucial to follow the instructions in this booklet for safe and economical operation. The appliance requires an earthed electrical supply of 230 V ~ 50 Hz, with a recommended fusing of 3A. For safety, the boiler must not be operated without its casing correctly fitted and forming an adequate seal. If installed in a compartment, that compartment must not be used for storage. If a fault is suspected, the boiler must not be used until a Gas Safe Registered Engineer has corrected the issue. Tampering with sealed components is strictly prohibited. This appliance can be used by children aged 8 years and above, and by persons with reduced physical, sensory, or mental capabilities, or lack of experience and knowledge, provided they are supervised or instructed on safe use and understand the associated hazards. Children should not play with the appliance, and cleaning and user maintenance should not be performed by children without supervision.
To start the boiler, first switch on the electricity and ensure all external controls (programmer, room thermostat, cylinder thermostat) are active. If "OFF" is displayed, press the Mode button (B) to show "ON". Then, turn the Temperature control knob (A) until 80°C is displayed. Once the boiler has ignited, refer to the subsequent pages for optimal temperature knob settings. In normal operation, the boiler status display (C) will show various messages. If an "L" code is displayed, the boiler can be restarted by pressing the Restart button (E). The burner symbol '◊' will remain illuminated when the burner is lit. If the boiler fails to ignite after five attempts, fault messages like "L 02" will be displayed. To restart, press the Restart button (E); if it still fails, consult a Registered Gas Installer.
The Logic System² S is a high-efficiency, condensing appliance that automatically adjusts its output to match heat demand, thereby reducing gas consumption. For optimal efficiency (using less gas), turn the central heating temperature knob (A) lower. In colder periods, it may be necessary to increase the temperature setting to meet heating requirements, depending on the house and radiators. Reducing the room thermostat setting by 1°C can reduce gas consumption by up to 10%.
The boiler includes frost protection that operates in all modes, provided the power supply remains on. If the water in the boiler drops below 5°C, the frost protection activates to prevent freezing. This feature does not guarantee protection for all other parts of the system. If a system frost thermostat is installed, the boiler must be in winter mode (no cross through the radiator symbol) for the system frost protection to function. If no system frost protection is provided and frost is likely during a short absence, it is recommended to leave the system heating controls or built-in programmer (if fitted) switched on at a reduced temperature setting. For longer absences, the entire system should be drained.
To completely remove power from the boiler, the mains power switch must be turned off.
The appliance is fitted with a siphonic condensate trap system to reduce the risk of freezing. If the condensate pipe freezes, follow these instructions:
The system pressure gauge (G) indicates the central heating system pressure. If the pressure falls below the original installation pressure of 1-2 bar over time, a water leak may be indicated. To re-pressurise:
For normal cleaning, dust with a dry cloth. For stubborn marks, wipe with a damp cloth and finish with a dry cloth. Do NOT use abrasive cleaning materials.
The appliance should be serviced at least once a year by a Gas Safe Registered Engineer.
The user control display informs about the boiler's status and flame presence.
General| Boiler Type | System |
|---|---|
| Output Rating | 15 kW |
| Dimensions (H x W x D) | 700 x 395 x 278 mm |
| Fuel Type | Natural Gas |
| Warranty | 2 years |
| Mounting | Wall-mounted |
| ERP Efficiency | A |
