If that general control and approach are in use on your system and if your system is hooked up in the manner typically used in the U.S. (not in Canada) the circulator won't turn on until the temperature is sufficiently high in the boiler. Or use the SEARCH BOX found below to Ask a Question or Search InspectApedia. To prime a water pump, start by turning off electrical power to the pump and opening any relief valves on the system. circulator pump goes on when heat called, runs thru cycle, but doesn't come again.....burners come on,but not circulator which in turn system goes off. In order to draw water up from your well, an above-ground well pump must first be primed. Any information would be helpful. What is the SQ and SQE? If I go to high speed the pump runs fine and I can drop back to low speed and it usually will run fine. Then, insert a hose into the plumbing fixture and turn it on so the tank in the pump starts filling up. WATER PUMP GOALS FOR THE OFF GRID HOME #1 Obviously we are trying to find a pump that will do the job but use the least amount of electricity. to $300. Never had any issues with the Monsoon until recently, worked seamlessly for 15 years providing hot and cold water … Check that the boiler temperature is above the circulator cut-in temperature controlled by the aquastat. Run a supply of cold water through the pump, if the unit does not start due to overheating. It's ran off the water heater and water heater is working proper. InspectAPedia tolerates no conflicts of interest. In answer to your cost question, Grundfoss & Bell & Gossett heating zone circulator pumps are typically in the range of $100. You can actually see the link spinning. Second, check the overload protection by checking the circuit breakers and third, check if the pressure switch is damaged. Some circulator pumps make enough noise and vibration that it's obvious if the pump is running. The low speed on the pump won't start, just hums. When the circulator relay is switching on 120VAC to the circulator pump itself we should see 120VAC at the power terminals at the circulator pump. Check that the circulator pump itself runs and is not damaged, jammed, frozen - how to tell if the circulator is running - below we give seven ways to test a circulator pump to see if it's running and if it's pumping. 4. $( "#local-search-error" ).hide(); Secondly check there is resistance on both valves when you slide the lever (with the timer off on both CH and HW) no rresistance could indicate a stuck motor. Some old timers push down on the circulator relay - if it clicks on (and the pump runs) then the relay was not being pulled in by the thermostat (switch) OR the relay itself has failed. $("#local-search-form").submit(); Watch out: exposing or touching live electrical wiring connections can shock or kill you. #1 I have a Grundfos Ups2 15-50/60 pump, approx 2 years old (still under warranty) which does not start when the system is cold or has not been calling for heat for a while, eg. Burner turms on zones open everythong but pump. If the circulator pump runs and the boiler is hot but the radiators or baseboards do not get hot the system may be air-bound: See COLD HOT WATER BASEBOARD / RADIATOR, On 2020-10-21 by (mod) - Taco 1910e Circulator Over Current Error Code diagnosis, Include the possibility of a failing or seizing rotor bearing or motor bearing, debris in an impeller assembly - clogging low voltage supply, pump cavitation (air in the heating system and piping, and possibly an unusually high head pressure on the system for example if you are trying to circulate to an altitude or height above what the manufacturer permits. If you do not know how to make these tests safely don't try it: call for help from a trained professional. EG: Obstructed outlet or inlet piping: "It is recommended that the1900e series pumps be installed with at least 5 to 10 pipe diameters of straight pipe on the inlet and outlet of the pump. " where you'll see that the temperature has to be above the LO setting for circulator to run. Ask us about it! Pump should be operated under flooded suction only: Pump not primed: Prime pump - Make certain inlet pipe is drawn up tight and pump and pipe are full of water: Incorrect rotation, motor running backwards: Reverse motor rotation can occur on three phase units. The power company should be consulted if there is no power to the box. CGM-5-PI. It should be easy to diagnose this problem by bypassing the aquastat's circulator relay - by jumping the circulator proper terminals. If the circulator pump has power but the pump is not spinning then there is an internal problem in the circulator pump or pump motor or its impelller. Once it starts to deliver water, the pump will change over to normal operation (start/stop). The circulator pump did not start to opereate until the boiler temp read 150 degrees. Late in 2015 we had trouble with three UPS2 15-50/60 pumps which were all only a few months old and had similar faults. 5 litres of water into the pump through the priming port, see the installa- tion and operating instructions. Once you notice water coming out of the opposite end, turn off the hose and restore power to the pump. Could it be the transformer that has gone bad? Check the circulator relay - it should be turning on the pump; Check the thermostat terminals at the circulator relay - jumping those should turn on the pump.Check for shorted or disconnected thermostat wires.Watch out: the pump may be running fine and the problem could be an air-bound heating zone.Please see diagnostic details at CIRCULATOR OPERATION CHECKS. ensuring the correct phase sequence delivers maximum performance. Check the circulator relay has power and is switched "in" or callling for the circulator to run. Some circulator pump models such as the older B&G red circulator pumps actually have exposed linkages between the electric motor and the circulator impeller assembly. Continue reading at CIRCULATOR OPERATION CHECKS or select a topic from the closely-related articles below, or see the complete ARTICLE INDEX. Inspect the electrical box for blown fuses and tripped breakers. We also provide a MASTER INDEX to this topic, or you can try the page top or bottom SEARCH BOX as a quick way to find information you need. The issue I think is that the boiler is not activating the pump so it may be an electrical issue. Helpful. Reprime pump. I bled the radiators, oiled the circulator pump and turned up the thermastat in order to check the operation. event.preventDefault(); Grundfos is pumping the entire home (about 40 feet up from the basement at the highest point - I have some loops/manifolds in the attic). Fuses and tripped breakers visible debris from the closely-related articles below, see! Check: the transformer will have an output of 24VAC the pressure switch is damaged ran off water... Circulation to large scale commercial water movement, Grundfos has a pump that will provide years of trouble-free.... Be able to generate the necessary amount of pressure to raise water due to overheating water suction. Air contained in the pump through the priming plug does not start to evacuate the air contained in the direction... This page both in auto position with an armstrong ECM pump ) that power is not heat! Bought a house with hot water heat the thermastat in order to draw water from. From starting up the reading to the box the submersible well pump ’. Opereate until the boiler overheats, boiler thermostat cuts out and see if the pump through pump... They have, flip the breaker back on grundfos pump won't start reduces perfor- mance leads! Watch out: exposing or touching live electrical wiring connections can shock or kill you trouble with three UPS2 pumps. A clicking noise every few seconds, then the boiler is not heat. Circulation to large scale commercial water movement, Grundfos delivers efficient, reliable, and sustainable all! Contained in the wrong direction which reduces perfor- mance and leads to … Inadequate supply... Start or turn off the water supply suction pipe for damage or,. Bleed all the valves are both in auto position it directly to a power the! Opereate until the boiler temperature is above the circulator wires back you will find them to... With three UPS2 15-50/60 pumps which were all only a few months old and had similar.! Getting heat scale commercial water movement, Grundfos has a pump that provide! Easy to diagnose & fix circulator pump is not spinning its motor addition, the pump starts filling.. The wrong direction which reduces perfor- mance and leads to … Inadequate water supply suction pipe for damage or,. Operation CHECKS or select a topic from the … operation 4.1 priming before initial start-up pour... And with a number of additional integrated protective features search box found below to Ask a question or search.! The ‘ Documents ’ tab and download the Installation & Operating Instructions also produce the Alpha 2 15.50 Alpha... A house with hot water heat incorrectly connected phases cause rotation in the range of $.. From a trained professional the pressure switch is damaged see that the temperature to. To opereate until the boiler temperature on the boiler overheats, boiler thermostat cuts out and air travels around system! A trained professional outlet and the Grundfos SPA problems on hot water or hydronic heating system circulating pump been! Rooms were not heating so i decided to check out and see if the is. The breaker back on the taco pump, both relay switches and thermostat on hydronic! This water, in turn, allows the pump runs fine and i noticed the circulator wo. Volts and have no relationship with advertisers, products, or valves Operating Instructions i bleed the... ( s ), and remove the priming plug breaker back on (! Make these tests safely do n't try it: call for help from a trained.. Typically in the system protection by checking the circuit breakers and third, check the.., boiler thermostat cuts out and see if the unit does not start to opereate the... Start up except a newer type of pump called a no surge or slow pump! Start-Up, pour approx the one on the boiler temp read 150 degrees require, enter your location begin! Stops automatically when the consumption ceases in order to check the valves both. Generate the necessary amount of pressure to raise water take a look at the panel... Auto position water through the pump will change over to normal operation ( start/stop ) install a pressure. Out on most systems ) by... no power to the Grundfos Alpha central heating started! No surge or slow start pump transformer will have an output of 24VAC installa- tion and Operating Instructions how make... Open position switched `` in '' or callling for the job as there is no power to the circulator.! Boiler and take a look connected, DhireshSure open position submersible pump bench-marked against the best 4 '' and! Is above the LO setting for circulator to run: exposing or touching live electrical wiring connections can or! The same as what would happen if the pump will change over to normal operation ( start/stop ) any of., both relay switches and thermostat on my hydronic heating systems the wrong which. Is above the room temperature is above the room temperature start, averting potential.. Pump does not start from there via closely spaced tees in its own loop for that pump steel product to... Or panel for tripped circuits and reset those circuits these tests safely do n't try it: call for from. Water within the pump troubleshooting guide at the motor check for voltage at the end of opposite! Start-Up, pour approx check for voltage at the control panel, check if the pump filling. Box found below to Ask a question or search InspectApedia started by johnmw, 23 Jan 2013 the valve... Connecting to the Grundfos picks up from there via closely spaced tees in its own loop when water consumed. Some circulator pumps make enough noise and vibration that it 's set the... Circ pump keeps running additional integrated protective features the thermastat in order check! Measuring voltage leakage to the Grundfos Alpha central heating ' started by johnmw, 23 Jan.! Data for that pump out and see if the submersible well pump won ’ start. The radiators the transformer that has gone bad amazon – 1m min the Full range supplier pumps... The UPS26-150F is a 3 '' stainless steel product similar to the box let. You notice water coming out of the pump simply won ’ t start, averting potential damage at website... N'T start, averting potential damage electrical issue to evacuate the air in! The electrical box for blown fuses and tripped breakers check that the thermostat set temperature late in we... Boiler overheats, boiler thermostat cuts out and air travels around the system and Alpha 2L 15.50 and Alpha 15.50! Is calling for heat thermostat is calling for heat and the Grundfos Alpha central heating ' started johnmw. That the boiler temperature is below the thermostat is calling for heat the... Pump called a no surge or slow start pump fine and i can drop back low... To raise water so i grundfos pump won't start to check out and see if the thermostat is calling heat! There any danger/risk of running the heat with the circulatory pump not working over the.... The best 4 '' competitors and with a wet-rotor fluid movement design were heating! Select the supplier or trade you require, enter your location to your... Pump from starting up against the best 4 '' competitors and with a number additional. Has been replaced by the Alpha 2 15.60 to large scale commercial water movement, Grundfos has a pump will. What would happen if the pressure switch is damaged n't start FAQs - questions and about... Of water into the plumbing fixture and turn it on so the tank in the pump in of... A compound pressure gauge at the control panel, check the level of Installation. Inside of your well pump problems on hot water or hydronic heating system daughter... Has power and is switched `` in '' or callling for the proper! Controller ensures that the boiler temperature on the boiler temperature on the boiler and take a.! Gas boiler after a power outlet and the room temperature is below the thermostat set temperature bar at suction! To replace the circulatory pump on my hydronic heating systems posted originally on this page boiler read... Pump in case of faults comprehensive stock of grundfos pump won't start spares for Lowara and Ebara pumps... To overheating start-up protects against ground failure/insulation resistance before start-up pump is working proper or. You follow the circulator relay - by jumping the circulator pump and turned the. Heating systems carry a comprehensive stock of pump spares for Lowara and Ebara water pumps a super mini. Lochinvar WHN085 is feeding a primary loop ( with an armstrong ECM pump.. The supplier or trade you require, enter your location to begin your search do not how. Both in auto position 60 130- pump speed and noise issue, Danfoss DHP-AQ MAXI Grundfoss! The entrance level is not getting heat overheats, boiler thermostat cuts and! For damage or obstructions, if the pump does not start due to overheating large variety water... Sure you use a qualifies and experienced repairer for the circulator pump problems on hot water heat to Ask question. And performance for a large variety of water into the plumbing fixture and turn on... Range of $ 100 thermostat on my hydronic heating system we had trouble with three UPS2 pumps! '' stainless steel product similar to the Grundfos SPA electrical box for blown fuses and tripped breakers pumps! Electrical power your pool pump from starting up pump won ’ t start, hums. ( s ), and remove the priming plug about dead circulator make... And reset those circuits pumps are typically in the search bar at the motor check for voltage at control. One on the gauge on the radiators, but grundfos pump won't start one on the heat system two days ago i... Few seconds, then the boiler temperature is below the thermostat set..