The problem with the boiler overheat stat is a result of no pump overrun. You can remove your email later, if desired. I switched the boiler off at mains, to give it time to cool down. The boiler should be turned off and your installer contacted. If fault recurs this indicates an overheat condition. Instead, you need to call a boiler repair company, and get them to fault-find the problem. After reading the booklets that came with the boiler and checking on internet forums. The reset button should not be pressed more than twice, should a burner lock-out occur. If this happens while fire is burning hot, then without the pump circulating water, the water temp in the boiler will rise and likely trip the high limit switch. Please refer to page 11. If you’re having to reset your boiler on a regular basis, it might be annoying, but it could also be a sign that something more serious is wrong. OudtoorBoiler.com Tip: "Knowledge Is Power", The Most Overlooked Maintenance Item that will Cost You MONEY, 3 Biggest Mistakes You Can Make With Your Outdoor Boiler - Summer Maintenance, Worlds Best Underground Pipe! If your boiler needs to be reset just once, it could be that there is a simple glitch in the system. Continually having to reset your boiler is an indicator that the boiler definitely either needs serviced or overhauled. And now to the point of my post. The killer problem came this morning, the overheat light (red) came on. If it’s a simple of matter of having to top up the pressure in your boiler, it’s also not a particularly serious issue, as the boiler will simply reset once this has been done. If the water in the boiler falls below 5ºC, the frost protection will activate and run the boiler to avoid freezing. After doing some tests, we found the boiler wasn’t getting rid of the, It turned out that the source of the problem was a, , which was quickly replaced, testing and left working. Again, an unlimited supply of air to the firebox is bad - it will lead to uncontrolled burning of wood fuel in the firebox that will damage the firebox steel. If your Worcester boiler is leaking, this can cause low pressure and the boiler to lockout. The overrun is designed to dissipate the heat safely and prevent the overheat stat from tripping. Boiler is not working for central heating or hot water and the display shows 'L:A '(flashing). If fault recurs this indicates an overheat condition. Underground Pipe - 5 Ways to NOT Waste Money, HOW TO MAX the RETENTION VALUE of your Outdoor Boiler - and - Minimize Depreciation, Avoid Electrical Fire - #1 Reason to Replace Broken Door Conduit. If you have to keep topping up your. Problem with boiler overheat lockout reset Halstead Quattro. 1) Overheat protection tripped. The Top 6 Ways You SAVE MONEY by Replacing Your Door Seal (Ultimate Summer Shutdown Checklist Part 5 of 10), When A Complete FLUSH Is Urgently Needed? (The button under the boiler). The reset button normally trips when a furnace detects a lack of flames in its burner chamber. Wood, ash and hot coals must not be located within 6-8 inches from the inside of the front door frame (inside wall of firebox). How do I reset the overheat cut off button on a Glow-worm Ultimate boiler? Those appliances are not suitable for external installation unless protected by a purpose made building such as a boiler house. These buttons will reset the boiler and get it up and running again. By continuing to use this site you consent to the use of cookies on your device as described in our cookie policy unless you have disabled them. 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