Baxi combi boiler manual 80e

Temperature selector set to '-'. Gas pressure too low. Check and clean gas filter, also check gas inlet pressure. Faulty diaphragm. Will also cause a high water rate. Automatic gas valve push rod sticking. May also cause a high water rate. Dismantle dean and regrease using Dow Corning silicone grease. Handle the push rod with care, do not bend. Slow ignition screw incorrectly set. See Fig, 16 for the position of the screw.

Turning the screw clockwise delays the ignition, anti-clockwise advances the ignition. The screw should be set 2 full turns out anti clockwise from the fully in position. When correct the burner ignition should be smooth and quiet when a hot water outlet is opened. Heat exchanger scaled. Ultimately this will cause the heat exchanger fins to discolour and buckle. Noisy ignition could be caused by incorrect setting of the show ignition screw.

Reduced pilot rate caused dy dirt. Also clean the lint filter located at the base of pilot tube. Burner aeration ports and main flame ports blocked. Carefully clean the burners with a vacuum cleaner. Gas inlet pressure low. Call in your local British Gas Region. Low waterflow caused by blocked water filter. Clean the debris from the filter. Will also cause as high water rate.

Replace the diaphragm assembly - Part No Automatic gas valve push rod jammed. Blocked water filter. Heat exchanger blocked with lime. Loss of service water main pressure. Contact your Local Water Authority. Water rate will be normal. Gas not turned on.

Purge the air line by depressing and holding the centre ON button, this may take minutes. Incorrect pilot lighting procedure. Follow the lighting instructions located on the bottom cover or refer to the "Instructions for Use".

Electrode lead not connected to the rear of the spark igniter. Re-connect the electrode lead. Incorrect spark gap. The gap between the electrode tip and the pilot hood should be mm. Current tracking to earth. Check the electode lead is routed clear of all metal parts. Faulty components. Replace any faulty components found. No gas to the appliance 9. Thermocouple connections loose. Tighten the connections.

Pilot flame 'soft' or too small to heat the thermocouple tip. Pilot injector partially blocked, clear by bowling through or replace.

Check the gas inlet pressure is correct - 20 mbar. Also clean the lint filter located at the base of the pilot tube. Thermocouple worn out or damaged. Faulty magnet unit in the flame safety device. Energy cut-off device connections loose. Tighten connections. Energy cut-off device may be faulty. Check out the Baxi Solo 2 Troubleshooting tables to help you correct the issue with your boiler. Order replacement parts as identified by the fault finding guide.

Loose screws at joints or fittings - detective "O" ring damaged valve casting at joint - defective burner feed pipe. Burner Pilot on but burner will not ignite. External controls or boiler thermostat not calling for heat - blown fuse - defective power supply or external controls - soleniod open circuit test for continuity at solenoid terminals - injector blocked - inadequate gas supply - faulty gas valve.

Pilot established and main burner will ignite but system liable to nuisance shut - down. Dirty or loose thermocouple connections - defective thermocouple - defective flame safety magnet - incorrect or faulty wiring - overheat cut-off device defective - adverse wind conditions - incorrectly filled terminal - partially blocked pilot injector. Main burner will not shut down in response to external controls. Technical Support Helpline Cookie Policy So we can give you the best possible experience, we use cookies on our website.

Product literature Follow the links below for the product literature for all our Baxi boilers. Opt in to our newsletter NOW and join us! Discontinued products User guides, installation instructions or brochures for discontinued products can found using the links below. If you need support with an old boiler, call us on Part 1 Part 2. Automatic 3. Turn on the gas and electrical supplies to the boiler and ensure that all external controls are Gas Valve calling for heat. Set the temperature controls to maximum and the selector switch to the Off position Fig.

Page Completion Hinge the facia panel upwards and refit the case front panel. Secure them with the screws previously removed Fig. Instruct the user in the operation of the boiler and system, explaining the operational sequence. Page Servicing The Boiler For reasons of safety and economy, it is recommended that the boiler is serviced annually.

Servicing must be performed by a competent person. Page 27 Baffle Remove the spring clips retaining the air box side baffle plates. Disengage the tabs on the baffles from the slots in the fan hood Fig. Undo the screws securing the fan and hood to the appliance back panel. Page Changing Components When the new component has been fitted turn the selector switch fully anticlockwise against the spring pressure to Sensing position R and hold for 2 seconds to reset the Tubes Page 29 Note the positions of the two sensing tubes on 80e model the outlet elbow and three wires on the fan motor and remove them.

Slacken the screws on the outlet sealing collar. Ease the collar upwards as far as possible. Page 30 Remove the burner as described in Section Undo the screws securing the injector Gasket manifold to the inlet elbow and remove the manifold. Unscrew and replace injectors as required Injector and examine the sealing gasket, replacing as necessary. Page 31 Undo the nut on the gas feed pipe under the boiler. Remove the securing screws and hinge the facia panel down. Gas Valve 3. Disconnect the earth wire and pressure sensing pipe from the valve.

Page 32 3. A standard Grundfos replacement head can now be fitted. A Grundfos head is suitable for the Combi 80e. The Combi e requires a head. Connect the wiring to the new head. The pump speed must be set to 3 Fig. Page 33 Drain the primary circuit and undo the nut on the pressure gauge capillary. Remove the timer cover and ease the timer wiring aside. Undo the screws securing the gauge retaining bracket.

Page 34 Drain the primary circuit. Disconnect the discharge pipe from the valve. Using a suitable hexagon key undo the grub screw sufficiently to release the valve. Note the orientation of the valve, rotate it and withdraw it from the manifold.

Page 35 While supporting the heat exchanger undo the screws securing it to the brass manifolds. Withdraw the heat exchanger upwards and to the left of the gas valve, taking care not to damage any wires or controls. Page 36 Remove the pressure differential valve as described above. By-pass Pipe Diaphragm 2. From the brass diverter manifold undo the nut on the heating flow pipe.

Page Illustrated Wiring Diagram Page Fault Finding Check that gas, water and electrical supplies are available at the boiler. CH water system pressurised to 0. The preferred minimum gas pressure is Page 39