A clue that's worth looking into is just where the circulator pump is installed. I can replicate the issue at any time by shutting off the circulator pump and pulling hot water from anywhere in the house. ChrisI would not insulate the circulator pump for just the reason you give: it may overheat, shortening motor life. I have a 30 year old hot water boiler baseboard heating system in the house we recently bought. I've had the one thermostat replaced, but the issue hasn't been resolved. The boiler turns off and the pump keeps operating for e.g. I can constantly feel the heat coming from the floor even though my thermostat isn't calling for heat. bearing, fins ...etc)? No error messages displayed on panel. Hello, So I am not sure what to do here. I had a friend pump that kept sticking. Click to Show or Hide Citations & References. Perhaps the long shut down of the entire system recently affected the configuration. Follow the circ pump … Thanks for any input. It will still heat the house and run normally when called for heat but it does this intermittently between cycles, every 2 to 5 minutes. I had some boiler maintenance done. I can't imagine it would hurt it but thought I should ask. The problem could be a bad circulator motor or circulator relay, but more likely the problem is that someone in the house is running hot water and the hot water is made by a tankless coil in the boiler and the boiler temperature drops. A malfunctioning pump may be an inconvenience in your home, but know that this is a common problem. 3. I'm trying to troubleshoot my zone relay. Are any of your zones overheating? He went on to say that my landlord was too cheap to pay someone time and a half to come out that Friday evening. I recently replaced my pool pump, which was a 1.25hp, SF 1.00 with a 1.00hp, SF1.25 pump and now it keeps overheating and shutting off every 20-30 min. LindsaySome heating boilers also include a hot water loop that can be used to heat a separate hot water tank (an indirect fired water heater) used to provide domestic hot water for washing and bathing. Inspect the electrical box for blown fuses and tripped breakers. The problem could be a bad circulator motor or circulator relay, but more likely the problem is that someone in the house is running hot water and the hot water is made by a tankless coil in the boiler and the boiler temperature drops. Also, supposedly, the valves are all closed. I'm wondering if I should not worry about this, or if there is maybe something I should be doing? I was informed that the circulator runs often in order to heat the hot water as well as provide heat. If I do unplug the pump, can it be damaged if not woking for too long? On 2018-03-24 by (mod) - circulators also used on indirect water heaters. In my suite, I have two thermostats and the area that I don't have a problem with is controlled by the other thermostat. I would very much appreciate some advice as I'm at my wits' end! I'd look for a loose or corroded electrical connection first, starting right at the thermostat and following that wire, then perhaps a failing circulator relay. Tthis article series explains how to diagnose & fix a heating circulator pump that runs even when we are not asking for heat. 15 more minutes. If the circ pump is buzzing and hot to the touch most likely it is the culprit. One zone keeps calling for heat with the thermostat off. No error messages. pump keeps cycling on and off. Nothing works and its not the breaker switch Any ideas of what this could be? A few questions before I attempt to start a learning routine for the CP. If you hear noise coming from your hot water recirculation pump, that isn’t a good sign. Once again, there are a few different things it could be. However, by the time I went to bed (which was after the boiler program was scheulded to finish) the pump had actually turned off! On 2019-01-06 - by (mod) - insulate the circulator pump? Check that power is on, and the breaker or GFCI test button are not tripped. If you have an indirect water heater installed and a single circulator pump serving all of your heating (and water heater tank) zones, then a call for heat at any thermostat OR a drop in temperature in the indirect water heater will turn on the circulator.But a circulator that is running for just three seconds and then shuts off sounds to me like a circulator control or thermostat or temperature sensor problem that needs repair. Have to decide whether we want the recirculating pump within the next few days, so scrambling to know what’s best. Could there be an issue with the wiring in the thermostat causing the pump to cycle when it shouldn't?Any help is appreciated. Re: Temporarily turning off main water and circulation pump; Author: packy (MA) the whole idea is not to run the circulator with no water in it. Ensure that the top point of the discharge pipe and the pump does not exceed 50 feet. They are both in stock. On 2018-02-06 by (mod) - remove thermostat wire connections to start diagnosis. They keep the water circulating even when the boiler has shut off. Reset the unit by pressing the "On/Off" button once. I don't have electric zone valves only the Flow check valves which have been replaced. Could the pump be going bad? Pump Problem 5: Pump speed settings are incorrect. Received updated / replacement part numbers from Sundance. Had it since new. I'd like to believe theres more to the situation I just dont know about, and that they wouldn't be jeopardizing the lives of all tenants in the building. it comes on again after 15 min then shuts off again . I know very little about these systems as this is my first time having one, but this frequent on and off cycling doesn't seem normal to me. Then saw him again in the hallway and asked if he really thought it could explode, he said he was going to keep checking water levels all weekend and that it might be a little colder in the building this weekend because theyd be turning the heat down. Easy enough to check if it’s the filter. Hi Donald. I emptied the hot tub to clean it and refill You were right about the blown fuse. On the top of the box is a little pointer, if it's a multi speed. Ive checked the control valves and im not quite sure but it seems like one or two might be malfunctioning - pipes to the control box are hot/warm while warm/cold on the other side but i dont know if that would cause the boiler to not shut off... Ed,If the thermostat wires were disconnected at the circulator end and the circulator keeps running, I suspect a bad relay or control. On 2017-11-26 by (mod) - my circulator pump shuts off before reaching desired temperature in the home. If the shaft is not freewheeling and it’s binding then you will have to loosen it or figure out why it is binding ie if it is plugged or there is an issue in the wet end at the impellor. Or use the SEARCH BOX found below to Ask a Question or Search InspectApedia. You want to know if there is flow going through the pipe from one side of the pump to the other. If the pump is leaking due to corrosion, then the only thing to do, is to replace the pump, as the corrosion is most likely not going to stop by making any easy fixers. But it runs and shuts off and then runs again 3 seconds later way too often...like every 11 minutes? any ideas? Per Grundfos (the pump manufacturer) damage may occur. I replaced it again but have not turned the jets on yet. The circulator seems to be shorting but I'm not sure how to narrow down the problem. The circulation pump turns o...Read More. If the circ pump continues to cycle you could possibly … The technician forgot to open a ball valve that that leads to the circulator pump feeding my hot water tank. Air in the line: If there has been a power outage or air has gotten into the line for some reason, the pump can make a lot of noise. We have no relationship with advertisers, products, or services discussed at this website. I have a boiler that is down and want to know if the circulation pump (multi zone) should be turned off of left on while the system is fixed (2 days)? Of course if the circulator is running but no heat is being delivered then start by checking to see if the boiler will run. If I change modes circ pump will not come back on. is it broken? If the circulator stops then the thermostat was calling for heat - OR its wires are shorted so as to appear to be calling for heat. However, after replacing the fuse, everything worked until I turned the jets on and the same fuse blew again. Then some time before next cycle it turns off again. Regardless of zone demand for heat or satisfied & regardless of boiler temp, and confirmed 110V across C1 & C2 terminals, C1 ( Honeywell L7224) indicator & pump stay on! I took the panel off the pump and found inside a terminal block which held the earth, neutral and live wires of the feed cable from the boiler. If the pump was running "dry" it could have suffered wear or damage. I'm wondering if the zone relaying shorting but I'm not sure how to find out, On 2014-11-18 by (mod) - troubleshoot my zone relay. I replaced my flow control valves thinking it was convection heat, and replaced the thermostat. I have a Cal Spa dually Model CP31 the suction light is on and h\it keeps shutting down in circulation … not much room for relief to the impeller, sucking away like someone trying to suck a just served wendy's shake through a straw! This is a new behavior, and was not the case before.Even when I power down the system, wait 30 seconds or even 2hrs, when reenergized, 10 seconds of silence, C1 indicator light goes on, followed by a relay click, and circulator turns on. Called Sundance, told to replace flow switch. WHAT GOES WRONG WITH HEATING CIRCULATORS? Faults can occur when the gate valve is turned … Either pump 1 will operate at low speed or the circulation pump … Most pumps for residential systems work off of 120 volts. Try disconnecting your top side control panel and then power cycling the spa. This is with no TT demand and BT above limit.Absolutely frustrating as to why the Aquastat is now turning on the relay/circulator for no need or reason.The MAJOR CONCERN is, the pump is on the return side, in-between closed zone valves and boiler. In fact, it is very rare that I've had to turn the heat on. water-heater  Share. Run a supply of cold water through the pump, if the unit does not start due to overheating. we just had a pump replaced and a relay switch on our 2005 Calspa. I currently have a oil-fired boiler for heat and domestic hot water. Not sure if that's possible, but there's a whole lot of wires and junction boxes in the boiler room so Itll take some time narrowing it down. . This past Friday, I overheard the caretaker of my apartment building say how he hoped the boiler doesn't explode before it can get checked out on Monday. Improve this question. For slice valves, the handle should be Up, and for ball valves, the handle should be parallel to the pipe. If there is no action at all from the circulation pump, your topside control panel should be giving you an error code, perhaps a FLO or OH. can hear the relay clicking with it. Why would the same fuse blow again? If a circulation pump is bad you can usually hear it whining when it is running. Normally you shouldn't have to do even that. The thermostat turns the boiler on or off. Please help. lather, rinse and repeat.your valued advise?>. Hi Tony. This condition does not kick in until the water temperature climbs to 95°F (35°C). Turn spa power ON at the breaker and press the temp button. as that is an organized way to step through causes of a circulator pump that just continues to run no matter what. Save my name, email, and website in this browser for the next time I comment. Replaced flow sensor[deposits on switch] and now circ.pump cycles on and off. Hi George. Related Posts. We can't know if the caretaker is a trained heating service tech who has actually observed something clearly dangerous or if s/he is speaking more generally. with the pump running. Sounds a dirty filter, low water level in the spa, sticking weir gate assembly and or a plugged circ pump or circ pump line. Discussion Starter • #1 • 4 mo ago. Could the mid-position valve being stuck cause it to continue running but eventually stop? Thanks. I was to the point that every thermostat was completely disconnected from the zone valves, and the zone valve wiring was completely disconnected from the boiler/circulator. If the boiler is hot and the circulator is running but no heat is being delivered to the radiators or baseboards, then see AIR-BOUND HEATING SYSTEMS - home, On 2018-02-04 by W.Sharpe There is a fault with the gate valve or just turned off. The boiler and pump both started up as expected. The circulating pump keeps running and the spa will not cool down. if you shut the water, shut the circulator and drain water from a low point, you'll be OK. if you shut the water, drain the water from a low point and then turn off the circulator, you could cause damage to it. And usually they are between 1 and 3. My question is: I notice the circulation pump is very hot, ergo probably losing heat through convection the same as un-insulated water pipes, should I wrap the pump or will that cause it to be too hot internally and possibly damage it? I have 4 functioning thermostats in my house (1 basement, 2 main level, 1 second level) and checked each but no issued. Most hot water circulating pumps do not shut off. H2otub replied to H2otub's topic in Portable Hot Tubs & Spas. This same thermostat is the only control for the air conditioning, which works properly. Any harm either way? There has been several plumbers/HVAC technicians through our suite (and all of the suites in our building) and they can't seem to fix the problem. btw, it is rather cold, 15 - 20 outside, & no, this doesn't have an outside sensor. I'm going to try that tomorrow. Thanks. This is the video I sent her as to what to do next time it sticks Everything was working fine until electric company changed out house meter, tub showing FL1 code. Your pump has to be running in order for the spa to heat up. I have to say, I really don't know anything about boilers, but I havent been able to stop thinking about this all weekend and have been worried ever since he made that comment. Start by cleaning your filter, checking for circulation blockages, and topping off your water if necessary. If the circ pump comes on and it doesn’t cycle like you have said here then you could have a bad topside or bad connection at the topside. While it can work pretty much anywhere in the piping loop, old timers like me prefer to see the circulator installed on the return side of the heat piping loop - water there is a bit cooler, which the pump then enjoys and which can give it a longer life. This pump … The pump could be in an alarm condition. I'm dealing with a taco circulator pump that is running non stop.I discovered it when the temperature in one zone was climbing way beyond the setting (set to 70, baseboards still hot when reading 75-77degrees0.I've followed the suggestions on how to troubleshoot to no avail. Drained spa. The live feed into the pump does originate from inside the boiler casing. Chris, when you turn off the heating system at its power switch your circulator pump should shut off on its own. All getting proper voltage and confirmed working. On the surface sound like you could have blown a fuse. I have Honeywell zone relays connected to the circulators. the motor is very hot.then i've seen on a couple of discussion sites, "no harm will come to the circulator". This whining sound can be a sign of a clogged impeller or a bad motor. LindsaySome heating boilers also include a hot water loop that can be used to heat a separate hot water tank (an indirect fired water heater) used to provide domestic hot water for washing and bathing. On 2019-03-06 - by (mod) - intermittent circulator pump stop-start. On 2017-11-26 by (mod) - no heat after repairing heating piping leak, CircPlease try using the search box just above to find our diagnostic article series using this phraseAIR-BOUND HEATING SYSTEMS To see the diagnostic and repair suggestions that most likely address a situation you described, We have a boiler system in our home we had to turn the water supply off due to a pinhole in a copper pipe we fix the pinhole, when we turn the system back on the boiler itself will kick on but we are not getting any heat from the registers the circulator pump is making a unique sound the pump itself is vibrating and it's hot but the pipe leading from the top of the pump is cold any suggestions, On 2017-11-26 by (mod) - my circulator pump shuts off before reaching desired temperature in the home. is there a fix? The jets went on and then pop.. everthing shut down. If it does not then there is a wiring or control SNAFU that we need to discuss. Shutting off the boiler via the t_stat does not help. board. Replace the primary circulation pump 3 A 264 The air fan has failed during the operating phase. John,Yes. waking up to turn on the heat for another warming. Continue reading at CIRCULATOR PUMP WON'T STOP RUNNING - topic home, or select a topic from the closely-related articles below, or see the complete ARTICLE INDEX. The past 2 or 3 times i got gas in my 2010 jeep patriot, it took forever. Hi Tony. Replace the supply and/or safety sensors. First step: where are you: country and city. After the repair we noticed one of the jets was lying on the bottom of the tub. Thanks in advance for any info or advice. All pumps and functions worked as they should. new hot water natural gas boiler, 4 zones , I have the thermostat off upstairs , but I continue to get heat, have a circulator running all the time, my installer is returning in a couple of day , my ? FAQs about heating zone circulator pump wont' stop running. Hot tub circulation pump keeps shutting off. why is the circulator suddenly running non-stop? Noisy Pump Heat pump running continuously I have a good man 2.5 ton heat pump system this will be my second winter wi...Read More. Allure 3 model). Why Won't the Circulating Pump Work After Changing the Water in a Hot Tub?. But a circulator that is running for just three seconds and then shuts off sounds to me like a circulator control or thermostat or temperature sensor problem that needs repair. Hi Nigel, See if you can turn the shaft manually. A total distance of <2'. Therefore no circulation in the hot tub. They are extremely easy to adjust. After I opened the valve the tank eventually reached temperature but during the process there was a humming sounds coming from the circulator. The air will need to be bled out of the system. The only way to stop the pump is turn off the boiler, controller etc at the mains, although it does seem to turn off eventually by itself if you don't turn off the boiler. Thanks!Mike. - Circulator Pump Will Not Shut Off, Circulator Pump Will Not Shut OffThree Taco zone valves on one Taco circulator pump. Boiler hi-lo set& working properly. Approximately two-thirds of my suite is affected by this heating irregularity. I have in floor radiant heat and I have spent a bunch of effort to insulate all the hot water pipes that are exposed to conserve heat loss and make it as efficient as possible. If the pump isn’t working, you may need to replace it. Open a thermostatic valve. sounds like b.s. CIRCULATOR PUMP SPEED SELECTION & ADJUSTMENT, HOME INSPECTION EDUCATION COURESES (Canada), HOME INSPECTION EDUCATION: HOME STUDY COURSES, Our recommended books about building & mechanical systems design, inspection, problem diagnosis, and repair, and about indoor environment and IAQ testing, diagnosis, and cleanup are at the. Matt did you try just disconnecting the zone relay? It was the first time in about 10 days that the pump had turned itself off when it was supposed to. Except for the warmer months in the summer, it is much too warm in my suite so, I always have the patio door and/or window open and in turn, I have an unpleasant draft. Listed below are a few common circulator pump problems that you can reference to determine what may be wrong with your pump and how you may be able to remedy it. Try disconnecting your top side control panel and then power cycling the spa. If you can remove the equipment access panels, locate the flow switch to see if it is in the closed position or even moving/fluctuating. Tim Tim. This gives more even heat distribution and helps avoid frozen zone piping. If you have 120 volts on the terminal connections where the wires go to the pump then the aquastat is good and the relay is working as it should. When that happens the system is designed to give priority to the person in the shower, If that's not the case, that is if no one's in the shower when this problem is happening then we're back to looking at the circulator pump motor and circulator relay, my circulator pump shuts off before reaching desired temp. The swap from a 220 pump to a 110 pump did not require any programming, It was Plug and Play. Most commonly, your pump may be operating at the wrong voltage, overheating, or simply failing to compete with your neighborhood's electrical needs. Got hit with 20inches of snow, not a good time for this to go down. To get the pump to shut off when the boiler shuts off the pump will need to be wired in with the control wiring on the boiler. Sometimes putting that in writing helps.Depending on where you live there may also be a rental authority or building safety department who can help you out. If the established water level is lower than this, the pump may suck the skimmer dry, causing the thermal shut-off to activate. CIRCULATOR PUMP WON'T STOP RUNNING FAQs at InspectApedia.com - online encyclopedia of building & environmental inspection, testing, diagnosis, repair, & problem prevention advice. FL2 on panel kept coming on and shutting off circ pump / heater. A Noisy Pump. Can hear relay switching. Let me know if you need either. I would check your main fuse first. If you have an indirect water heater installed and a single circulator pump serving all of your heating (and water heater tank) zones, then a call for heat at any thermostat OR a drop in temperature in the indirect water heater will turn on the circulator. from a taco sales rep to me.question is, what happened? Your hot tub relies on a circulating pump to keep the water moving throughout the circulation system. Replace the primary circulation pump 2 U 213 The temperature difference between the supply and return sensors is more than 90 °F (50 K) Open the servicing cocks. ferroli boiler fires up ok and pump runs but when it gets to desired temp and gas stops the circulation pump also stops therfore the boiler retains heat … There are several reasons why your pump may randomly shut off—a behavior known as "pump tripping." Check whether your pump turns on. it takes oyery long time to get the right temp, Boiler when heat shut off my pump stay running it is set up with economaster control what can I test or is the bad. There should be a little "box" on top of the pump. Apologies for the delay. Have temp set at 102, F1 or F4 skimming / heater mode. This setting is not user-programmable. I hope I don’t need a new comp. Do I need to switch back to the 1.25hp pump… If we are shutting off the water supply would we then have to be re-programming the pump every single time so that it would not burn out by operating without a water supply? Thinking he was joking, I went on about my business. On 2020-01-03 - by (mod) - Circulator pump won’t stop when I turn it off. 1 is slowest speed, 3 is highest speed. Refilled spa. Follow asked Feb 28 '16 at 4:10. Yeah it sounds like that pump that is tied to the jet pump button you are pressing could be locked up. 4. 1 is the slowest water flow rate and 3 is the highest. There could be a heat sensor in the pump and if the water temperature is below a given value then the pump could turn itself off. Look for a misfired or shorted thermostat wiring problem. What is the part number of the new board and eprom revision of the eprom chip on the new board? CIRCULATION PUMP IS DEAD. i currently have a problem where my boiler will not shut off except only when using the master switch. I have been told by the condo board that the issue isn't to do with the boilers, but I'm not sure what to believe. 2003 Sweetwater Bahia hot tub. Last Reply on December 8th, 2020 by Nigel, 2004 Sweetwater Bahia model: Heater wiring on circuit board burnt. Circulator pump won’t stop when I turn it off it’s continues to run I changed thermostat what else should I do, On 2019-10-27 by (mod) - caretaker of my apartment building say how he hoped the boiler doesn't explode. Note: appearance of your Comment below may be delayed: if your comment contains an image, web link, or text that looks to the software as if it might be a web link, your posting will appear after it has been approved by a moderator. Thank you for your response. Any suggestions? The proper water level will then need to be established. Everything works fine for 2 – 3 days. Topped off the water, removed the filter, and replaced flow sensor. If your hot tub temperature is all over the place, you could have water flow problems. Circulation Pump Keeps Shutting Off. I think the previous owners put two pumps onto one zone relay. If you have a skimmer, make sure the water level is 3/4″ below the top of the skimmer opening. Scotty Kilmer, mechanic for the last 46 years, shows how you can fix your car when the gas pump keeps shutting off as you try to refuel. Circ. Should I be concerned about pump wear (e.g. The condition causes the circulation pump to turn off automatically if it’s running in order to avoid adding additional heat to spa water that could cause “Overheat” conditions.

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