Assessments - 5, GPA: 4.4
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Check electricity to the boiler is switched on. Is the Central Heating System YES NO Is the ( ) indicator neon on ? section, between 1 and 2.5 bar ? Pressure needle in the GREEN NO 30° 40° 50° 60° 70° 80° bar01234 Flame Failure Neon YES If the reading falls below 1 bar repressurise the system as Turn the ON/OFF/Reset described in section 4.1. Selector Switch to Reset. Reset If boiler does not Reset © Baxi Heating UK Ltd 2009 2.0 Troubleshooting Is the Timer ON and calling for Is the Room Thermostat (if YES YES heat ? fitted) set high enough ? 121234567891011CH ON CH OFF Typical examples of external timer NO Ensure timer is set for Central Heating ON (see any instructions supplied with timer). 151052025 NO Turn Room Thermostat to maximum setting (typical example shown). 151052025 CONTACT YOUR INSTALLER OR SERVICE ENGINEER. If you don’t know what you need to do to get the boiler to light, or need help with the system and controls, contact your installer as soon as possible. © Baxi Heating UK Ltd 2009 3.0 Fault Indication Air Flow Monitor 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 Pump/Low Monitor Neon Pressure Neon Safety Thermostat Sensor Fault Neon Neons Flame Failure Neon 30° 40° 50° 60° 70° 80° ResetFig. 1 Fig. 2 Reset Fig. 3 3.1 1. The boiler is fitted with an air pressure sensing device. This monitors the flue system. 2. If the ( ) neon illuminates it indicates that the flue or flue terminal is blocked or obstructed in some way, or that there is an internal fault. If there is no external blockage of the flue terminal that can be easily removed contact your Installer or Service Engineer (Fig. 1). 3.2 Pump Fault or Low Pressure 1. The neon ( ) will illuminate if the circulating pump is faulty or the system pressure drops below the minimum requirement (Fig. 1). 2. Check the pressure gauge as described on page 8. If the pressure is in the normal range, a pump fault is indicated. Contact your Installer or Service Engineer to determine the nature of the fault. 3.3 Sensor Fault 1. When either of the ( ) or ( ) neons is illuminated a fault on one of the temperature sensors is indicated (Fig. 1). Contact your Installer or Service Engineer. 3.4 Pump Protection 1. With the selector switch in the on position (Fig. 2) the pump will automatically operate for 1 minute in every 24 hours to prevent sticking. 3.5 Safety Thermostat 1. Your Potterton Performa HE is fitted with an additional safety devices, which shut down the boiler in the event of the system, boiler or flue overheating. The safety thermostat neon ( ) will light in this instance (Fig. 1). 3.6 Flame Failure 1. The red flame failure neon ( ) will illuminate in the event of the burner failing to light, when incomplete lighting of the burner occurs or blockage of the condensate drain (Fig. 1). 3.7 To Reset the Safety Thermostat or Flame Failure 1. To reset: Turn the selector fully anti-clockwise against the spring pressure to the ‘Reset’ position for at least two seconds and release (Fig. 3). 2. If after turning the selector to the ‘Reset’ position the boiler does not relight or the safety thermostat or flame failure operates repeatedly, causing boiler shutdown, a fault is indicated. Your Installer or Service Engineer should be contacted as soon as possible. © Baxi Heating UK Ltd 2009 4.0 System Pressure & Temperature bar01234Normal Pressure 4.1 Central Heating System Pressure 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. 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. bar01234Requires Repressurising 3. The filling loop will probably consist of two taps and a separate metal braided hose with connection fittings. 4. Only when repressurising should the hose be connected between the two taps. Ensure that the nuts on the pipe ends are tightened onto the taps. Fig. 5 5. Fully open one of the taps first, and then while watching the pressure gauge, carefully open the second tap. bar01234 6. When the needle on the gauge is indicating 1 or more turn both taps off. 7. Disconnect the metal braided hose from the taps (a small amount of water may be present) and remove it. Keep the hose in a safe place for future use. 4.2 Temperature Control Fig. 6 Fault 1. Central Heating: The central heating hot water flow temperature can be adjusted between 30° C (± 5° C) minimum and 85° C (± 5° C) maximum. 2. Turn the control knob clockwise to increase the temperature (Fig. 7). In normal winter usage we recommend that the central heating temperature be set at maximum. 3. Domestic Hot Water: The temper...