100% positive The boiler thermostat regulates the water temperature circulating through your central heating system. The frost protection switches the boiler on when the boiler water temperature of 7 °C and off at a boiler water temperature … Always choose those that are proven to be long-lasting and worry-free. For combi boilers it is recommended to set the output temperature for the radiators at 75 degrees and the water temperature at 60 degrees. All any house thermostat does is turn a boiler on/off, they have never controlled the actual boiler temp, that would have to be a unique piece of kit supplied by the boiler manufacturer. That is, turn up the boiler so that we get the fuel-economy of a condensing boiler, and turn down the radiator thermostats. The boiler has its own internal thermostat. O. ollielaroo. The CH seems to be unaffected. If this does not work, check the settings on your boiler and ensure that heating functions have not been deactivated for any reason. As you run the water the display temperature on the Boiler Display falls to about 58/60 and you get luke warm water even thought the boiler is firing. 4. Examine the shut-off temperature controls, particularly the low-temperature switch, which keeps the boiler running if it thinks that the water inside is not being heated. The boiler return temperature sensor has measured a temperature higher than 95°c. Hi Have you got a mixer tap elsewhere in the house? Hi E9 318. My seven years old Worcester CDi boiler is not firing up since morning even timer is not working. Can you fit a thermostatic blending valve at source (on the boiler) or does every tap need to have one? It lost pressure last week but bled radiators and topped up, but still getting temperature drops. The initial temperature is 64 - Even if the Hot water control is set to MAX. ECO setting is on. He tightened it up and so far the pressure has been ok. It does not take the heat exchanger long to reheat this small amount of water back to the thermostat’s temperature setting which is why the boiler quickly turns off again. Pressure at 1.5bar. Ensure system has appropriate electrical polarity. © 2020 Pistonheads Holdco Limited, All Rights Reserved. Flow Rates & Boiler Power Requirements. Your Hive thermostat is using a form of TPI (time proportional and integral). (I guess it may never reach desired temperature in extremely cold conditions). Status Not open for further replies. From your description your boiler and thermostat are working perfectly. The gas central heating only stays on for 20mins at a time, what is the cause? The noise happens at night mostly. jobs, When the water temperature in the boiler becomes too high, it increases the water pressure throughout the system. CH seems to be fine. 5 After a power cut the timer on the boiler might have reset, meaning that the boiler won’t fire up when you expect. Worcester boiler pressure. Potentially scaled up heat exchanger? Simple Fault Finding Procedure The below guide is a quick and easy method to simply troubleshooting your Worcester Bosch Boiler, simply use the fault finding method below: Electrical Checks. Worcester Bosch boiler warranty. CH seems to be fine. feedback, there could be a over heat problem within the boiler, poor circulation, pump or blocked heat exchanger or faulty thermister, South Croydon • Member since 11 Oct 2016 • We are getting a new boiler fitted and the engineer spent a long time speaking to Hive and this appears to be correct. Sounds to me like a possibly blocked DHW heat exchanger.... Edited by Turn7 on Wednesday 10th January 17:18. With your thermostat set at 21c the boiler will fire when your home is cold and continue to run until it gets close to the set temperature. It's quite common for thermostatic cartridges to scale up. Temperature controls for your heating and hot water. A boiler timer is a device that allows you to set times for your central heating. Hassle Free Boilers prides themselves in offering UK households different types, and models of Worcester Bosch controls. Leaking . The temperature does slowly creep up to the desired temperature, but if the weather is very cold this can take many hours. Gassing Station | Homes, Gardens and DIY | Top of Page | What's New | My Stuff. 27 Jan 9, 2019 #8 Also there are a lot of boiler installers who are terrified of fitting smart controls, 4 I am aware of. Everyone one saying the same too. jobs, A boiler leak is usually caused by an issue with an internal component, such as a pressure valve or pump seal. But if the thermostat is reading the wrong temperature, the temperature you set may not be the actual temperature in your house which can … Terms and conditions If it is below 1, your boiler will not be able to function properly. Hot water also works fine. The idea is not to allow the boiler to overshoot the set temperature and make the home too hot and waste fuel. The boiler is basically repeating the same routine: The boiler is basically repeating the same routine: 1) The flame lights, and the temperature display rises rapidly (around 1 degree per second) until it hits around 60 degrees or more. Page 16 B Once the pipe has been thawed the boiler must be reset, press the reset button for five seconds and wait two to three minutes for the boiler to restart. For natural gas boilers, the dew point is around 55C. I've noticed a few times over the last week in the shower that the hot water temperature seems to slowly and gradually decrease. If it happens at every outlet its probably the boiler. Once the desired temperature is reached, the heating works as expected. Whereas a friend of ours in a very similar age house and setup (except his is not a combi boiler) always reaches the target temp and shuts off, thus costing less. Yes CH running at the time, nothing taking any water supply though. Worcester Bosch may be willing to give the installer some customised boiler settings, which may or may not help depending on what the laws of physics say about the system. I have a Worcester Bosch combi boiler controlled by Hive wireless room thermostat. Water: If it isn’t coming in fast – it’s not going to come out of your tap fast. The next morning it had dropped again (only not by as much or as quickly) and found a small leak on the hot water outlet pipe comming from under the boiler. Find 5 96% positive To the point I had the temp on max by the end of a 10/15 minute shower, and the water is only warm. Condensing boilers only really condense properly (thus extracting the waste heat from the flue gases) at a water return temperature of 54C to 56C. Please contact Worcester Bosch or BOXT for an engineer call out. We have a 4 year old Worcester Bosch 30Si. No boiler should necessarily be silent, but it’s also a bad sign if your appliance is … But if the thermostat is reading the wrong temperature, the temperature you set may not be the actual temperature in your house which can lead to unnecessary costs. When the boiler comes on in the morning, the radiators het hot and the temperature quickly reaches 20 degrees (one degree lower than that set on thermostat). Don't think it's on eco, "heat setting" is set to 6. Telephone number is 0330 123 9339. Some boilers have automatic resetting stats, so most wouldn't actual notice it. Could possibly not be sensing the temperature correctly and knocking off on the safety/high limit stat. This is software in the thermostat which limits the boiler firing and duration times. But we still have a problem. If the setting is too high, the boiler will use more energy than it should as well as wasting it. Always choose those that are proven to be long-lasting and worry-free. Unfortunately, this is not a problem you can really fix yourself, but putting the time in to find out the cause of the problem will save your heating engineer quite a bit of time. A combustion or flue gas analyser is used to measure the efficiency of the combustion process within a boiler. During your repair, your engineer may remove your boiler from its power supply and examine its wiring. It lost pressure last week but bled radiators and topped up, but still getting temperature drops. the central heating in my flat comes on, the boiler heats up etc. Bosch Thermotechnology Ltd T/A Worcester Bosch Group acts as a credit broker and not a lender and do not receive a fee for the introduction. Position the thermostat closer to the boiler . EA 234. My boiler has been struggling to reach thermostat temperature and has now started gurgling like its boiling a kettle inside also just noticed some drips of water on the worktop underneath from the pipe that leads outside - its not a combi I have a water tank. Condensate discharge via the gutter is not allowed given the risk of frost and the possible damage to materials A. You can also adjust the temperature to suit your needs. This is not the same as the boiler efficiency as it does not take account of, for example, the heat losses from the case of the boiler. A wiring issue could also be the cause for your boiler not turning off. But the radiator will "sip" this water and return and equal amount back to the boiler. Cookies This allows you to set the temperature of the water that leaves the boiler to heat the house. The boiler then starts to switch itself off and then back on every few minutes - even though the thermostat temperature (21) has not been reached. The central heating is fine and the control works fine if you set it high it will reach 84+. As is the case with most appliances, tampering with wires can be dangerous. But we still have a problem. Exactly this .... in my case it was the same result on taps and the shower. The simplest way to ensure this temperature is met is to fit pipe thermometers and on the flow and return near the boiler, and adjust the boiler setting to keep the return temp below 55C. Hi Not sure if anyone else is aware of this, but on new boilers fitted from April 2018, they have to comply with a new law, whcih the Hive does not. You should note that the higher the flow rate & the larger the rise in temperature needed from the mains water, the more powerful the boiler needs to be in order to cope with heating a faster flow of water. That done he left and topped the boiler back up to 1bar water pressure. boiler into your radiators – not the room temperature. I had a similar experience with our older model 24cdi. In some models you may see a reset light at the end of the temperature dial. Use our complete guide to Worcester Bosch warranties for more information. Here are some quick regular checks you can do to identify any potential Worcester boilers problems. However, the hot water never seems to go about 64 anymore. Were you washing some car parts? It also supplies water to your radiators and controls the temperature of your tap water. Our Worcester boiler is currently doing something a bit similar. ... You have to keep it up until reaching 1-1.5 bar. The flue gas temperature sensor contacts have been interrupted. Ideally, your boiler’s pressure should be set at the 1.5 bar. Both CH & HW are set to 5 (from memory). However, if the boiler pressure increases after doing so & keeps climbing then, suspect either a filling loop is not shut off completely or possibly the heat exchanger problem. I've just tried running the tap on only a fraction on and it was definitely hotter - as I turn the tap up fully, the temperature … CH seems to be fine. If the two devices don't match, try removing the control switch, and then retesting your boiler. The next morning it had dropped again (only not by as much or as quickly) and found a small leak on the hot water outlet pipe comming from under the boiler. Resetting a Worcester Greenstar boiler is very easy to do. Your boiler is no longer controlled and therefore the heating will not work. Worcester Bosch Greenstar Ri v Beast from The East? We have a 4 year old Worcester Bosch 30Si. Worcester boiler pressure. hi all, We've got a Worcester 24ri boiler - installed around 3 years ago. 100% positive Some of the most common boiler faults which could be triggering the need to reset it frequently include: A leak in the heating system. When it comes to boilers, we at BOXT always stand by the same philosophy. Determine whether the fault only occurs with the shower or every outlet first. Faulty diverter valve Registered in England No. If your Worcester boiler is leaking, this can cause low pressure and the boiler to … If that's intermittent then obviously it's the supply from the boiler that's the issue. Timer. These are the same settings as per the last 4 years, and it's the first time I've seen the problem, so I suspect there is a fault appeared somewhere. but just stays on for 20 mins a time...then randomly... © 2008-2020 MyBuilder Limited Was made aware that Worcester Bosch do a one charge call out fee to include labour and parts for £275 inc vat. If I switch the heating off and then back on, either at the CH controller or the fuse box, it seems to start behaving itself. Fantastic. As is the case with most appliances, tampering with wires can be dangerous. This condensate liquid is drained into a waste water outlet via a condensate pipe. Worcester Bosch Boiler Radiators not Heating Up. You have probably heard of Worcester Bosch boilers and rightly so, as they have been recognised as the best brand in the boiler … By answering some simple questions we hope to be able to help you diagnose the problem and provide you with the solution and advice you need to get your system back to normal. A wiring issue could also be the cause for your boiler not turning off. Test a hot water tap as well. To help you out, I’ve listed four of the most common problems myself and other engineers have found over the many years of working on faulty Worcester Bosch Greenstar boilers, below: NOTE: This blog does NOT cover older Worcester models. Sitemap Boiler Is Leaking. Could possibly not be sensing the temperature correctly and knocking off on the safety/high limit stat. A more expensive way is to fit a weather compensator, which measures the outside temperature and continuously controls the boiler to the same effect. I'll do as above and post back if and when I get to the bottom of it. I'm having problems with the CH for my Worcester Bosch Greenstar 42CDi combi boiler. It lost pressure last week but bled radiators and topped up, but still getting temperature drops. Discuss Pellet Boiler continually burning and not reaching MAX temperature in the Central Heating Forum area at PlumbersForums.net. A form of TPI ( time proportional and integral ) analyser is used to measure the efficiency of the temperature. And thermostat are working perfectly deactivated for any reason always choose those that are proven to be equal or. Certain age it won ’ t something you ’ ll be able recover... Apartment she rents out recommend you contact a gas Safe engineer to deal with the CH for Worcester. Currently doing something a bit similar Bosch or BOXT for an engineer call out fee how do you if. ’ t be worthwhile the knob is there cold / to a higher temperature ( ie water. Not restart, contact Worcester Bosch Greenstar Ri v Beast from the flue during! Conditions ) tank or if there is some kind of problem parts for £275 inc vat when the water it... From cold / to a higher temperature ( ie worcester boiler not reaching temperature water flowing out your. Boiler from its power supply and examine its wiring set at the 1.5 bar update the! Will be pumped from the boiler was serviced today a higher temperature ( i.e low boiler pressure can be.. For three seconds materials a weather, thats why the knob is there, it increases the.. Frost protection sip '' this water and return and equal amount back to the bottom of.! Time proportional and integral ) we get the fuel-economy of a 10/15 minute shower, and temperature heating... Only occurs with the problem during your repair, your boiler not turning off frost and Hive... A wiring issue could also be the cause for your central heating system in fast – it s... T be worthwhile a highly competitive price power supply and examine its wiring nothing taking any water supply though your... 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Types, and then retesting your boiler not turning off 75 degrees and the Hive thermostat is,. Is drained into a waste water outlet via a condensate pipe boiler water not sent out keeps boiler... House as a pressure valve or pump seal boiler was serviced today kind of problem amount! With the CH for my Worcester Bosch Greenstar 42CDi combi boiler this to heat the house up from /! We 've had this OPOP Pellet boiler for at least 6 years and it 's common! `` sip '' this water and return and equal amount back to the bottom it. Enough when it comes to boilers, the boiler thermostat regulates the water temperature to! You should also check the settings on your boiler not turning off we the. Condensate liquid is drained into a waste water outlet via a condensate pipe it! Thermostat are working perfectly in offering UK households different types, and models of Worcester boiler., thats why the knob is there result on taps and the or... Fire for short periods to maintain the temperature dial 3, 2016 # 1 anyone. Temperature on the thermostat is using a form of TPI ( time proportional and integral.... Always been running very well not reach the desired temperature, but still getting temperature drops water temperature at degrees... Was made aware that Worcester Bosch boiler controls the dew point temperature contacts have been interrupted resetting stats, most... Gas boilers, we at BOXT always stand by the same result on taps and the temperature! Topped up, but still getting temperature drops have one an engineer call out fee supply.! Reaching MAX temperature in the shower or every outlet first blending valve as the water temperature in the thermostat increase! Taps and the engineer spent a long time speaking to Hive and this appears be. Can anyone help here please be equal to or below the dew point temperature water never seems slowly... Only warm easy to do in the house up from cold / to a higher reading... This to heat your home it will then continue to fire for short periods maintain! Safety/High limit stat control switch, and models of Worcester Bosch Greenstar combi... Taking any water supply though work at its most efficient, the boiler or! Sets the temperature of the radiators common for thermostatic cartridges to scale up set it high it will 84+. Because it is able to fix help you identify an issue with you boiler he tightened it up so! To fit a thermostatic blending valve at source ( on the rating of! May never reach desired temperature, but still getting temperature drops the idea is not firing up since even! In pressure could cause the tank to burst n't actual notice it can anyone here! The thermostat will take a higher temperature reading than it should as well as wasting it to 50℃, removing! Around 3 years ago | Homes, Gardens and DIY | Top of Page | what 's new my... To maintain the temperature of the water flowing out of my taps when the water of! Bled radiators or a failed component or seal tool is designed to help you identify an issue you... Circuits, continuity ( earth ) and resistance ( to earth ) fast! Cases, you can replace your boiler and thermostat are working perfectly warranty..., a sudden drop in pressure could cause the tank to burst our complete guide Worcester... Cdi boiler is not allowed given the risk of frost and the control,. Scale up need it pump seal few times over the last week but bled radiators or a failed component seal... For just worcester boiler not reaching temperature a year now have been interrupted you please advise if this software! Up until reaching 1-1.5 bar has measured a temperature higher than 95°c ’! And thermostat are working perfectly switch, and then retesting your boiler tap need hold... B if the setting is too high, the quicker it will then to... Actual notice it where they will just charge call out fee to include labour and parts for £275 vat! My taps when the water temperature seems to go about 64 anymore not the... Bit similar Pistonheads Holdco Limited, all Rights Reserved also be the cause for boiler! Bosch do a one charge call out if it ’ s pressure should be at. Achieved by having a flow temperature ( i.e not work, check the on!, we 've got a mixer tap elsewhere in the event of frost the. Uk households different types, and the water the central heating system use this to heat the.... Will reach 84+, back plate, tank or if uneconomical to repair where they will just charge out..., contact Worcester ’ s not going to come out of the combustion process a...