{"batchcomplete":"","continue":{"lecontinue":"20260610140456|22","continue":"-||"},"query":{"logevents":[{"logid":32,"ns":0,"title":"Heating Fault Decision Tree (Core Diagnostic Flow)","pageid":28,"logpage":28,"revid":35,"params":{},"type":"create","action":"create","user":"Morgan Allen","timestamp":"2026-06-10T14:39:29Z","comment":"Created page with \"= Heating Fault Decision Tree =  == Purpose == To quickly identify whether a heating fault is caused by controls, wiring, or the boiler itself.  ---  == Step 1: Identify Symptom == * No heating at all * No hot water * Intermittent heating * Heating stuck ON * Boiler not firing  ---  == Step 2: Check Demand Exists == * Raise room thermostat above ambient temperature * Check programmer is calling for heating/hot water * Observe: ** Valve movement ** Relay clicks ** Boiler...\""},{"logid":31,"ns":0,"title":"Heating System No Hot Water Fault Guide","pageid":27,"logpage":27,"revid":34,"params":{},"type":"create","action":"create","user":"Morgan Allen","timestamp":"2026-06-10T14:38:53Z","comment":"Created page with \"= Heating System No Hot Water Fault Guide =  == Purpose == To identify why domestic hot water is not being produced in a heating system.  ---  == 1. System Type Confirmation == * Combi boiler (no cylinder) * System boiler (with cylinder) * Heat-only boiler  ---  == 2. Combi Boiler Checks == * Check flow rate demand (tap fully open) * Check for ignition attempt * Check for boiler error codes * Check inlet pressure and filters (if applicable)  ---  == 3. Cylinder System Ch...\""},{"logid":30,"ns":0,"title":"Heating System No Heat Fault Guide","pageid":26,"logpage":26,"revid":33,"params":{},"type":"create","action":"create","user":"Morgan Allen","timestamp":"2026-06-10T14:37:37Z","comment":"Created page with \"= Heating System No Heat Fault Guide =  == Purpose == To systematically identify why a heating system is not calling for heat or not firing the boiler.  ---  == 1. Initial Checks == * Confirm system has power (boiler, programmer, controls) * Check programmer is set to ON or timed correctly * Check thermostat setpoint is above room temperature * Check for any obvious error codes on boiler  ---  == 2. Confirm Demand Signal == * Increase thermostat temperature * Listen/obse...\""},{"logid":29,"ns":0,"title":"Fault finding guide","pageid":25,"logpage":25,"revid":32,"params":{},"type":"create","action":"create","user":"Morgan Allen","timestamp":"2026-06-10T14:37:16Z","comment":"Created page with \"* [[Heating System No Heat Fault Guide]] * [[Heating System No Hot Water Fault Guide]] * [[Heating Fault Decision Tree (Core Diagnostic Flow)]]\""},{"logid":28,"ns":0,"title":"Underfloor Heating Electrical Reference Pack","pageid":24,"logpage":24,"revid":30,"params":{},"type":"create","action":"create","user":"Morgan Allen","timestamp":"2026-06-10T14:10:41Z","comment":"Created page with \"= Underfloor Heating Electrical Wiring Reference =  == Overview == Underfloor heating systems use zone controllers and actuators to regulate heating in individual rooms or areas.  == Main Components == * Boiler (or heat source) * UFH control manifold with actuators * Zone controller * Room thermostats * Pump * Wiring centre / control box  ---  == System Operation == * Each room thermostat controls an actuator on the manifold. * When a zone calls for heat, actuators open....\""},{"logid":27,"ns":0,"title":"Combi Boiler Control Wiring Reference Pack","pageid":23,"logpage":23,"revid":29,"params":{},"type":"create","action":"create","user":"Morgan Allen","timestamp":"2026-06-10T14:10:15Z","comment":"Created page with \"= Combi Boiler Electrical Control Wiring Reference =  == Overview == Combi systems do not require external hot water control. Heating demand is sent directly to the boiler.  == Main Components == * Combi boiler * Room thermostat or smart thermostat * Optional external programmer * Fused spur supply * Boiler control terminals (heating demand input)  ---  == System Operation == * Boiler fires when it receives a heating demand signal. * No cylinder or zone valves required....\""},{"logid":26,"ns":0,"title":"S-Plan Plus / Zoned Systems Reference Pack","pageid":22,"logpage":22,"revid":28,"params":{},"type":"create","action":"create","user":"Morgan Allen","timestamp":"2026-06-10T14:09:55Z","comment":"Created page with \"= S-Plan Plus (Zoned Heating System) Wiring Reference =  == Overview == S-Plan Plus extends S-Plan by adding multiple heating zones, each with its own valve and thermostat.  == Main Components == * Boiler * Programmer / smart controller * Multiple room thermostats (zone control) * Multiple 2-port zone valves * Cylinder thermostat (if applicable) * Pump * Wiring centre / zone control module  ---  == System Operation == * Each heating zone operates independently. * Hot wat...\""},{"logid":25,"ns":0,"title":"S-Plan Wiring Reference Pack","pageid":21,"logpage":21,"revid":27,"params":{},"type":"create","action":"create","user":"Morgan Allen","timestamp":"2026-06-10T14:08:28Z","comment":"Created page with \"= S-Plan Heating System Wiring Reference =  == Overview == S-Plan systems use separate 2-port valves for heating and hot water control.  == Main Components == * Boiler * Programmer / timer * Room thermostat * Cylinder thermostat * 2 \u00d7 2-port motorised zone valves (heating + hot water) * Pump * Junction box / wiring centre  ---  == System Operation == * Heating and hot water are independently controlled. * Each zone has its own valve. * Each valve provides a separate boi...\""},{"logid":24,"ns":0,"title":"Y-Plan Wiring Reference Pack","pageid":20,"logpage":20,"revid":26,"params":{},"type":"create","action":"create","user":"Morgan Allen","timestamp":"2026-06-10T14:07:54Z","comment":"Created page with \"= Y-Plan Heating System Wiring Reference =  == Overview == Y-Plan systems use a single 3-port motorised valve to control heating and hot water from one boiler.  == Main Components == * Boiler (with heating demand input) * Programmer / timer * Room thermostat * Cylinder thermostat * 3-port motorised valve (mid-position valve) * Pump (usually external or boiler-integrated) * Junction box (commonly wiring centre)  ---  == System Operation == * Heating and hot water are cont...\""},{"logid":23,"ns":0,"title":"Heating System Electrical Installation Guide","pageid":19,"logpage":19,"revid":25,"params":{},"type":"create","action":"create","user":"Morgan Allen","timestamp":"2026-06-10T14:05:30Z","comment":"Created page with \"= Heating System Electrical Installation Guide =  == Important Note == All wiring must be carried out in accordance with manufacturer instructions and current electrical regulations. This guide is for installation workflow and verification only. Always refer to the specific system wiring diagram before termination.  == 1. System Identification == * Identify heating system type: ** Combi boiler ** System boiler with cylinder ** Heat-only (regular boiler) ** Underfloor hea...\""}]}}