User’s Operating Instructions Baxi Combi 105 HE Gas Fired Wall Mounted Condensing Boiler Please keep these instructions in a safe place. If you move house, please hand them over to the next occupier.
Contents Section Natural Gas Baxi Combi 105 HE G.C.No 47 075 18 Where fitted, user label for optional timer to be applied here Page 1.0 Quick Reference Guide 3 2.0 Troubleshooting 4 3.0 Fault Indication 6 4.0 System Pressure & Temperature 7 5.0 Clearances 8 6.0 Care of the Boiler 9 7.0 Legislation 10 8.0 Emergency 11 9.
1.0 Quick Reference Guide 30o 40o 50o 60o 70o 80o 2 Reset 1 3 4 0 bar ON/OFF/Reset Selector Switch Indicator Neons Central Heating Temperature Control Reset Domestic Hot Water Temperature Control System Pressure Gauge Reset Reset Position of Optional Timer Reset OFF Position Central Heating & Hot Water Domestic Hot Water Reset The boiler will not operate. Both Heating & Hot Water will operate. Hot Water will operate. Hold for approx 5 seconds and release.
Boiler not working 2.0 Troubleshooting START Make sure the gas supply is turned ON and check if other gas appliances are operating (e.g. fire, cooker). YES Is the ( ( ) on ? YES Is the ON/OFF/Reset Select Switch in the ( ) position and the Power ON indicator lit ? ) light on and the NO 30o 40o 50o 60o 70o 80o NO If no gas, consult your supplier. 30o 40o 50o 60o 70o 80o Reset Boiler On Indicator Burner On Indicator YES NO Power On Indicator Boiler operating satisfactorily.
2.0 Troubleshooting Is the Timer ON and calling for heat ? 12 Is the Room Thermostat (if fitted) set high enough ? 10 15 20 25 4 8 5 3 9 2 5 6 CH ON CH OFF NO Turn Room Thermostat to maximum setting (typical example shown). 10 15 20 25 Ensure timer is set for Central Heating ON (see any instructions supplied with timer). NO 5 7 Typical examples of external timer YES 1 10 11 YES CONTACT YOUR INSTALLER OR SERVICE ENGINEER.
3.0 Fault Indication 3.1 NOTE: The neons annotated have a dual function, indicating the temperature of the central heating water when constantly illuminated or begin to flash to indicate a fault. Air Flow Monitor Neon Pump/Low Pressure Neon Safety Thermostat Neon Flame Failure Neon 30o 40o 50o 60o 70o 80o Sensor Fault Neons Air Flow Monitor 1. The boiler is fitted with an air pressure sensing device. This monitors the flue system. 2.
4.0 System Pressure & Temperature 2 4.1 1 3 1. The normal operating water pressure is between 1 and 2.5 bar (Fig. 4). If the pressure exceeds 3 bar the safety pressure valve will operate and a fault is indicated (Fig. 6). Contact your installer. 4 0 bar Fig. 4 2. It may be necessary to repressurise the system occasionally (Fig. 5). A filling device (the filling loop) will be fitted on the system. If you are unsure of its position, or cannot identify it, consult the installer who fitted the boiler.
5.0 Clearances 450mm 5mm Min 20mm/5mm Min see *NOTE: 5.1 For your Safety 1. This appliance must have been installed in accordance with the manufacturer’s instructions and the regulations in force. 200mm Min 2. Any modification that may interfere with the normal operation of the appliance without express written permission from the manufacturer or his agent could invalidate the appliance warranty. In GB this could also infringe the Gas Safety (Installation and Use) Regulations.
6.0 Care of the Boiler 6.1 Cleaning the Outer case The painted panels should be wiped with a damp cloth and then dried completely. DO NOT USE ABRASIVE CLEANING AGENTS. 6.2 Protection & Precaution 1. The boiler incorporates an integral frost protection feature that will operate when the selector switch is in the ( ) position. If the boiler temperature falls below 5° C, then the boiler will operate until the water temperature has been raised. 2.
7.0 Legislation 7.1 Installation, Commissioning, Service & Repair 1. This appliance must be install in accordance with the manufacturer’s instructions and the regulations in force. Read the instructions fully before installing or using the appliance. 2. In GB, this must be carried out by a competent person as stated in the Gas Safety (Installation & Use) Regulations. 3.
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Please complete the boxes below 9.0 Warranty & Service Serial Number Standard Warranty Term & Conditions 12 Months Free Warranty - register today To receive your 12 months free warranty please complete the form supplied with the boiler or simply call heateam, the service of Baxi Heating UK Ltd on 08706 000 653.
