09/03/2015. It is recommended that thermostatically controlled shower valves are used to protect against a flow of water at too high a temperature. Unscrew and remove the single burner fixing nut (located above the burner, in the middle of the mounting flange) and withdraw the burner from the boiler and lay it to one side. It’s a good idea to keep an eye on your boiler’s pressure gauge quite often, because low boiler pressure can lead to your central heating system failing to function properly. A leak could happen for one of many reasons but it tends to indicate that an internal component has broken, normally a seal or valve. 2.Heating switch can be used to provide central heating only wen set to “timed”, on the other hand when heating switch set to OFF, the boiler won’t provide central heating. Only show branches with stock available now. If the leak stems from your pressure relief valve, it is likely that your system’s pressure has become too high. If burner does not operate refer to burner fault finding chart, Isolating valve(s) in fuel supply line closed, Fire valve closed.Fuel line filter is blocked. 3 Safety thermostat - Your boiler is fitted with a safety overheat thermostat which will automatically switch off the boiler in the case of a control malfunction causing overheating. The boiler thermostat has set to operate at a range  75°C – 85°C. To reset, … Check pump is free to rotate and is vented. Your boiler is equipped with a safety overheat thermostat. This can lead to corrosion, rust or cause electrical components within the boiler to short circuit. Whenever water pressure falls down (in yourthe heating system) under the value of 0.2 bar your appliance will activate automatic special function called cut-out switch for too low pressure. There is a blockage (or blockages) in the pipework. BURNER Power to the burner for it to operate. ‘Lockout’ Indicator- RED. Other solvents shouldn’t be used; re-assemble the valve using reverse of the above procedure, ensuring that the large diameter of the spring is at the bottom of the valve. Before start to work on any Grant boiler set the boiler into OFF position (move to gauge to off), close valve that supplies fuel and isolate the supply of electricity. To find trusted engineers near you, use our service to receive free quotes for a new boiler installation. Check flue condition/size and alter as necessary. Can be manually reset once the boiler : has cooled down. 8. Don’t try to build-in your boiler into the compartment/cupboard unless you contacted the installer and got permission to do it. To reset, unscrew the small plastic cap press the button then replace the cap. 8. However, never use the boiling water, as it will damage the pipe. 5. The flue terminal that is located on the outside wall can’t be damaged or obstructed. For periods longer than a few months we recommend system draining. 3. When things do go wrong, everyone in the house soon knows about it and to prevent your home sliding into chaos, we’ve put together this handy guide of repair advice. Should you try to light your boiler but it doesn’t work and the ‘lock-out’ reset button isn’t lit, that suggests that the overheat thermostat has operated. Plumber. In instances  where the problem found be other than with the appliance Ideal service engineer will a charge for the visit if your boiler is out of warranty period. Replace diaphragm or complete diverter valve. Page 6 TEST SWITCH When this happens, a red neon light will illuminate. Check electrical    continuity of pump microswitch. To replace pump head only – Using an Allen key, remove both screws securing pump head (motor) to the pump body. OP, what type of boiler do you have? 596 satisfied customers, we have a Grant Vortex 26 oil fired, 2007. Even the smallest of leaks can be a serious boiler issue. Our guide to Grant warranties will provide everything you need to know. external boiler; frost stat; grant; overheat; wiring box; andy R New Member. The control panel is fitted with an ON/OFF … Fit the bracket onto the replacement vessel and tighten both screws evenly. Insufficient oil flow to burner due to restriction in supply line. That way you know that you’re getting the best deal for you. In those instances a red neon will illuminate indicating that the thermostat has operated. *According to the latest figures from the Energy Saving Trust. For everyday cleaning simply use a dry cloth. The system will need be recharged to values somewhere between 0.5 and 1 bar. Ideal Logic Combi - User’s 3 Legend a. Pre-heat On/Off B. DHW Temperature Control C. CH Temperature Control D. Mode Control E. Boiler Status F. Burner ‘on’ Indicator G. Pressure Gauge h. Condensate Drain J. Check flow is at least 3 litres/min – rectify as necessary. The boiler will not light until the thermostat is reset. Replace the mixing valve and re-assemble in reverse order. I have a Grant Combi 26e boiler. Attention! Close the fill point valve. Periodically check that they are clear. 7. A water hardness test kit is supplied with the boiler. When adjusting schedule for the ‘on’ periods it is useful to remember that it might take up to an hour for the house to become warm, especially during the winter. To separate the plate heat exchanger from diverter valve, unscrew the two union nuts 7 & 8 (look at the picture above). It could be a safety issue. Boiler Overheat/Limit Thermostat Reset Button. Unscrew and disconnect pipe unions 1, 5 & 9 as shown on the picture. Note: The pressure shown on the system pressure gauge is not the air charge pressure in the vessel. Check wiring continuity from pump to microswitch. 4. 6. Dismantling of the main body of the valve for inspection and/or cleaning should be carried out in following order: remove the control knob fixing screw; pull off the control knob and carefully lever off the plastic housing under the knob, note correct positions; unscrew the brass top assembly from valve body; remove the lower assembly and spring; carefully remove any scale deposits or other particles from the valve seat and other components. Attention! Reconnect the flexible hose, ensuring that the sealing washer is correctly fitted in the union before tightening. Limit Indicator - RED. Burner on Indication - ORANGE. 6. 10. Refer to the procedure given on the front of the vessel. When it comes to getting quotes we don’t recommend going with the first one you receive, instead aim to get as many as 3. Not all Grant oil fired boilers are suitable for use with a sealed system, check if that is the option on your user manual. That can be done by opening a sludge valve which is located at the end of the tank, clean or replace filter element while keeping fuel supply valve closed, clean filter bowl if necessary, check min annually flexible fuel supply pipes, it is mandatory to replace those every two years. Unscrew the flexible hose union nut on the expansion vessel and disconnect the hose. Messages 1,749. Hot tap is not connected to hot water outlet of boiler, Insufficient flow of water through boiler. check controls are switched on and calling for heat, Check boiler On/Off switch is set to ‘ON’, Set 3-position           Heating switch to ‘Constant’. Check for 230 V output from BURNER LIVE terminal of PCB. 4.Boiler heating thermostat  normally controls the temperature of the water. You should periodically verify it and clean as needed. Grant Vortex Pro Kitchen/Utility Oil Boilers 5 For short periods - Set the On/Off to OFF. Any insurance that offers an annual service and safety inspections is worth thinking about. Was working today but stopped. Up to 97% … You need to pay special attention to: How to adjust temperature of the water for heating or/and hot water? If strange rumbling noises are coming from your boiler then it’s likely that limescale or sludge has built-up on your boiler’s heat exchanger, which is known as kettling. In instances when your boiler goes off and you try to light it but it doesn’t work and the ‘Lock-out’ reset button on the burner is not lit, most probably the overheat thermostat has operated. Fit a replacement valve using the reverse of the above procedure, ensuring that the sealing washer provided is correctly fitted in the valve union before tightening. Take a note of what fuel is suppose to be used (label on the inside of case side panel). Overheat thermostat reset button (under screw cover) Boiler thermostat ‘Lock-out’ reset button Boiler front panel removed Grant Euroflame Condensing External Modules5 Switch off the electricity supply to the boiler. This build-up, can restrict the flow of water within the heat exchanger causing the water to overheat, steam and boil. Don’t try to repair the fault yourself, instead contact an OFTEC registered engineer as soon as possible. To restart, simply set the switch to ON. 3. In instances where oil contacted skin wash it with soap, use a lot of rinsing water (until oil is fully removed from skin ) and a lanolin-based barrier cream afterwards, avoid any cloth contact with mineral oil, especially those which are touching your skin directly, avoid puting oily rags or tools in pockets, especially trouser pockets, always have a first-aid treatment near the place you work, avoid inhaling any vapours from mineral oils, never hang or put anything next to or on a boiler itself, all repairs, service and maintenance work (under or over guarantee) must be carried out only by an authorized boiler technician using Grant original spare parts, boiler should be immediately switched off you you suspect that it is not working properly. You will recognize it by seeing amber light illuminating. During very cold conditions the overheat stat is tripping which requires me to manully reset. Can someone point me in the right direction please. Has anyone … The boiler won’t light until the thermostat is reset. A leak that has developed around your system’s pipes could be caused by corrosion. Economy Mode 1 BoiLEr ConTroLs operation Winter … Check nozzle size and type and replace if necessary, Check fuel pressure and adjust as necessary. To replace complete pump – Undo both upper and lower pump unions, noting the correct direction of flow (downwards). • Pressure Gauge (Kitchen/Utility System models only) This is to … © 2020 Boiler Guide Manually operate the safety valve on top of the boiler heat exchanger, to de-pressurise the boiler. Close the primary return isolating valve and the pump isolating valve as shown on the picture below. The control panel is fitted with an ON/OFF switch, boiler thermostat control knob and the manual reset button for the overheat thermostat. Page 25. We advice to you check through the following guide tables when identifying problems and for the purpose of correct communication with customer service representative or requesting a service engineers visit. A boiler leak is usually caused by an issue with an internal component, such as a pressure valve or pump seal. To reset, unscrew the small plastic cap press the button then replace the cap. 13. Normally those malfunctions are short lived. One of the most efficient ways of re-pressuring the system in simply adding water to it. Warning! BURNER Power to the burner for it to operate. Warning! OVERHEAT Boiler overheat thermostat has operated and switched the boiler off. Some common boiler issues don’t even need an engineer but if in any doubt whatsoever, it’s always best to contact an engineer. Page 5: Notes About your fuel must not be obstructed. According to the law oil boilers are falling under ‘controlled service’ appliance. Boiler cold water and hot water connections reversed. • System Pressure Gauge (Internal System models only) This is to indicate the … For summer time operation, when central heating is not required, set the heating switch to”how water only” position or “off” in case of Vortex Combi. Press reset button –        no more than twice. Unscrew both compression nuts on the check valve and remove it from the boiler. If you’re not sure what it means, take a look through our comprehensive list of Grant error codes. Attention!This appliance must be earthed. Grant Product & Spares Catalogue Crinkle, Birr, Co. Offaly Tel: 057 9120089 • Fax: 057 9121060 Email: [email protected] www.grantengineering.ie JANUARY 2014 (ROI) CRINKLE, BIRR, CO. OFFALY Tel: 057 9120089 Fax: 057 9121060 [email protected] WWW.GRANTENGINEERING.IE Grant Oil Fired Condensing Boilers Our unique oil-fired condensing boilers are the most energy-efficent you can buy. Normally boiler heating thermostat operation doesn’t affect the temperature of the hot water flowing to the taps. in the pipework are closed. Gain General Access- unhook the expansion vessel from the front of the boiler and lay to one side. If a conventional flue is fitted to the boiler, unhook the flexible air inlet tube from the hook bracket on the crossmember, and remove the hook bracket from the boiler crossmember. Use the table below to identify possible faults with your boiler. Take a note of all or any fault codes that have appeared … The maximum temperature of the central heating water is 85°C for the Combi V3 and Combi Max and 80°C for the Vortex Combi models. If your home is installed with a Grant boiler, we’ll be taking you through some of the most common problems you might come across and how to get the boiler going again. However, if you are having to reset your boiler two or three times, there will be a good reason for doing so. }These will not be lit until activated 4. Whenever you will need central heating actually working during normal ‘off’ periods, set the heating switch to “constant” position. Grant Combi, Grant Multi Pass, Boiler thermostat and/or overheat thermostat faulty, Burner not lighting, oil & electricity present at burner, Reset burner air        damper and check combustion, Burner fires but smoke visible from flue or high smoke number, Insufficient combustion air supply to burner. There could also be an … Burner not firing for hot water (after a short time). 11. Step 5: Check the fault code. When the store switch is set to OFF position, the burner will not fire in order to maintain the water temperature. Replacing your boiler could lead to savings of as much as £305* a year if you live in a detached home. OVERHEAT Boiler overheat thermostat has operated and switched the boiler off. Check flue is clean and unobstructed – rectify as necessary. Grant Vortex, Grant Spira. Reset burner air        damper and check combustion. Re-assemble in reverse order  and refill the central heating system, 4. In instances where loose or flexible head type shower is used, it needs to be arranged the way the head cannot fall closer than 25 mm above the top of the bath, thanks to this it will prevent immersion in the bath water. The boiler is fitted with an overheat thermostat (which allows it to be used on a sealed central heating system) which will automatically switch off the boiler if the heat exchanger exceeds a pre-set temperature of 110°C ± 3°C. The boiler won’t operate, where there is no electric supply. BOILER REsET PROCEDURE - To reset boiler, turn mode control knob to reset position and immediately turn knob back to required setting. Fit the replacement pump using the reverse of the above procedure, ensuring that the new gasket is correctly fitted between the pump head and body. How to re-pressurise the system by adding water? 4. Boiler Parts.co.uk only supply Genuine Grant boiler spares for online purchasing, for delivery direct to your door, this section covers the spare parts for the Grant Euroflame System 90/120 model. Privacy, The smarter way to find approved boiler engineers, Always use a Gas Safe registered engineer. Any ideas what the … Check continuity of wiring to timeswitch. Contaminated combustion air (balanced flue). Should you be in any doubt at all about what’s wrong with your boiler, use our free service to get quotes from reliable engineers near you. 8. to boiler) must be checked annually to ensure that there is a 1.0 bar air charge in the vessel. Calculations are based on a mid-range gas boiler and average installation costs – depending on your requirement. Insufficient combustion air supply to burner. Table A – boiler start and burner related fault finding table  for all Grant Vortex oil fired boilers, Table B – oil /combustion smells and thermostat related fault finding table  for all Grant Vortex oil fired boilers, Table C – water and temperature related fault finding table  for all Grant Vortex oil fired boilers. To do this, wait until the boiler has cooled down and then unscrew the small plastic cap, press the button then replace the cap. And now to the point of my post. With the Heating switch set to “timed”, your boiler will make central heating able to work at each instance when the timer is set for an ‘on’ period. Before you start to work on Grant boilers set the boiler into OFF position (move to gauge to off), close valve that supplies fuel and isolate the supply of electricity. Some Grant boiler models come equipped with a frost thermostat. If your Grant boiler warranty has come to an end, then you might want to consider boiler insurance. Check flue draught and improve flue as necessary. These can be purchased online, but the repair itself should only be attempted by a professional tradesperson. Taking out insurance can be done with your energy supplier but there’s absolutely no obligation to do so. To maintain a longer and more consistent hot water temperaturethe factories fitted a flow restrictor  to all Grant models (Vortex Combi 36 and  Combi Max are the only exceptions) The purpose of flow resistor is to  reduce the flow rate to 15 litres/min. Lastly, restart or reset your boiler by pressing a button. For long periods: Set the On/Off switch to OFF and switch … To access the controls, open the lower … … read more. The temperature of the water leaving the boiler to the radiators can be increased by turning the boiler (heating) thermostat clockwise. Registered in England & Wales number 6873930. Check and set switch to ‘Constant’ to test. 4. A few different boilers have independent thermostats ( control and high limit) where the overheat reset is remote from burner lock out. Remove the vertical 15 mm pipe fromthe boiler. Using an adjustable spanner or grips, unscrew and remove the air vent. All ventilation openings must be clean and clear. In those instances reset button will bring back normal operation. In the event that you know the Manufacturers part number please utilize the extensive search facility to locate your Grant Heating Spare Part, should you require any further assistance please e-mail us with the … If required, the fuel supply valve may be closed and the water and electricity supplies turned off at the mains. Remove the vertical 15 mm pipe from the boiler to gain access to pipe union 6. The boiler is fitted with an overheat thermostat (which allows it to be used on a sealed central heating system) which will automatically switch off the boiler if the heat exchanger exceeds a pre-set temperature of 111°C ± 3°C. OVERHEAT RESET BOILER OFF ON HEATING TEMPERATURE ON BOILER OFF Lock-out button Front panel removed (pull forward at top, then lift off) Front panel fixing clips Front panel bottom locating tags GRA NT Mains On neon. Safety switches will switch the burner off whenever there’s a burner malfunction in your appliance. If the problem persists then an engineer will be needed to investigate. Undo one screw, remove the cover from the electrical terminal box and disconnect the pump head from the electrical cable. To ensure economic use, the pipe runs between the boiler and hot taps should be as short as possible and in 15 mm copper pipe or 22 mm for the Combi Max and Vortex Combi 36 only. Unscrew the capillary tube nut and disconnect it from the valve. 9. 14:42. Find the best boiler for your needs, or see how the latest A-rated boilers compare with each other and your existing one. It is not a Combi boiler and happens at anytime of the day/night. Boiler Guide is operated by Boiler Guide Limited. Wait till the boiler cools down. It’s easy enough to reset: there is a little button under the boiler that pops out, and can be pressed back in to fire it back to life… but needless to say if the problem occurs when we are out, we could come home to a very cold house. Unscrew the discharge pipe compression nut an disconnect it from the valve. 6. 12. Set the pump  speed selector switch to maximum. 5. To restart, simply set the switch to ON. If the boiler overheats regularly there may be a fault and you should contact your installer. Draining should be performed by qualified boiler specialist. In instances when pressure exceeds 8 bar reducing pressure valve usage is recommended.The boiler may still operate down to a pressure of 1.0 bar but with a reduced flow rate. Drain the central heating system and boiler using the drain cock on the boiler. Check that an extract fan is not pulling combustion gases from burner, Check all joints and flexible hose for leaks, Check gasket, re-tighten nuts or replace gas, Burner not correctly fitted on mounting flange, Remove and re-fit burner ensuring correct fitting, Check and replace ‘O’     ring as necessary, Thermostat sensor not connected to PCB (Vortex Combi only), Mains water supply is not connected to cold water inlet of boiler, One or more isolating valves, stop cocks, etc. The boiler will not light until the thermostat is reset. Grant Vortex Eco Utility Oil Boilers 5 For short periods - Set the On/Off to OFF. It appears the Domestic hot water pump won't switch off even when no hot water taps are in use. Remove the spring circlip holding the microswitch (4) assembly to the diverter valve (1), and separate the microswitch assembly from the valve. When this happens a ‘lock-out reset’ button will light up, pressing this will bring back normal operation. How to maintain your Grant boiler You can find flow restrictor inside of the cold water inlet of the isolator valve (placed on the outside of it). Unscrew the valve union and remove the valve from the boiler. Mains Indicator- ORANGE }These will not be lit until activated 5. 6. Wait till the boiler to cools down before the button will reset. Unscrew the union and remove the plate heat exchanger with diverter valve attached. Gain General Access -unhook the expansion vessel from the front of the boiler and lay to one side. 6. The replacement of your boiler will have to be carried out by a qualified engineer, they’ll either from a national company or an independent local. Failure to do this will invalidate the boiler warranty. Open valve (situated above pump in front of boiler). Always call a Gas Safe registered engineer and get it checked out, just in case. A), press the button then replace the cap. An overheat thermostat automatically switches off the boiler when a control malfunction causes overheating. Set thermostat to call and check boiler operates, Check continuity of thermostat, replace if necessary, No room thermostat or external timeswitch connected to boiler, Check link fitted between          8 & 9 on boiler         terminal block, Check nozzle size & fuel pressure, correct as necessary, Check boiler & baffles and clean as necessary, examine the flue terminal , make sure it is not damaged or blocked, start boiler to verify correct operation of its control system, examine all  fuel and water system connections and fittings, examine all joints and verify the tightness of all fittings that may leak in the future, verify if the system pressure is set at the right levels, where not refill, vent and re-check the system, examine all ventilation openings, those need to be right size and its opening needs to be clear, remove water/sludge extend from the fuel tank. The cover from the main water supply at your home in your area warranty has come to an,. 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