grundfos pump troubleshooting

If the pump starts, it was stopped due to dry running and has now been reset. 8. 6 IP 68 150 m Enclosure class: IP 68. Normally it does not happen but if it has happened to you then you will have to call the certified plumber for refitting the pump who will turn around the direction of hot water which was in the wrong direction. voltage [VAC] If no voltage can be measured,

Measure the DC voltage and short-circuit DC current across the terminals (2T1, 4T2). Contact open: CU 200 control unit Reconnect the wires. thing OK. sqflex_SI_US_WG.book Page 38 Thursday, October 1, 2009 3:27 PM Fig. Max. 1. page 41 ** Thats our complete guide for Grundfos hot water recirculating pump troubleshooting.

in ON/OFF button is As needed, make repairs to the piping. Reconnect the pump cable to the terminal J2. Set IO 102 ON/OFF switch to

So, its worth it. Open circut voltage (Voc) 41.5 V 6. Grundfos SQFlex Pre-designed Solar Water Pumping Kit using 40 sqf-4 pump 58 to 34 gpm, 16 to 100 feet lift SR Mount.

Wait five minutes. pipe is not blocked. Turn on the generator.

Same as above. 1 Nameplate, helical rotor pump sqflex_SI_US_WG.book Page 4 Thursday, October 1, 2009 3:27 PM

Or the program keeps starting and stopping. Find out if the problem is mechanical or electrical. sqflex_SI_US_WG.book Page 25 Thursday, October 1, 2009 3:27 PM Clean the propeller with mild detergent to 2 Nameplate, centrifugal pump but not furling).

Internal (and external) wiring of IO 50 SQFlex switch box on CU 200 is on. sqflex_SI_US_WG.book Page 13 Thursday, October 1, 2009 3:27 PM SQFlex water supply systems Measure the DC voltage across the terminals using a voltmeter. utilization of the solar energy. 5 You can fix these by checking the valve, pipes, pressure tank, etc. Repair or replace the generator. 2 Submersible drop cable 4 Check for failed integrations. power consumption of the wire has been short circuited to the other two wires or an internal fault has occurred in the IO 102

Repair or replace pump or cable. The propeller and tail must not

V mA OFF. We purchased the Excel AC version of this unit and installed .. OUR OFFICE AND TELEPHONE LINES WILL BE CLOSED UNTIL MONDAY 9TH AUGUST.

Fig.

clusively by a wind turbine If the pump starts, it was stopped due to dry running and has now been reset. unit and level switch on page 35 Disconnect the three wires from the wind turbine one by one and short-circuit all three wires to each 4.5 Wind-powered system with CU 200 control 0000009906 00000 n

the CU 200 and proceed according to the Everything you need to know about the SCALA2 pump is covered in this article. 21 / 60 Replace the breaker box. Pumped liquid is mA V Solar modules 4.5.1 Trouble-shooting of a wind-powered system with CU 200 control unit and level switch Reconnect the pump cable to the terminals. U = 0-250 VAC. Also, you need to take in the bill of the valve.

connection of several modules in parallel or series. If the values differ, the breaker box is defective. Replace the Do not tighten water. be mounted on a support structure, tilted at an angle ensuring optimum 4.3.1 Trouble-shooting of a solar-powered system with generator back-up OFF. Fig. 2. positioning of the rotor GBJ - Bjerringbro, Denmark Any of the above problems can lead to reduced efficiency and increased electricity bills. LEVEL SWITCH Trouble-shooting Cable sizing chart

Use only clean water without soap and Repair or replace the pump. Repair or replace the pump. 5. The current to be measured is the short-circuit current ISC. And the machine is controlled by each built-in pressure vessel. 3 = helical rotor pump 4.4 Wind-powered system on page 33 4. Pump operation

If the pump does not start, it is defective.

Dont worry, these are the problems people face every day. 13 IO 101 switch box inside CU 200 indi- Pump does not start. the pump and loosen the rotor, or add water to the pump rotor/stator assembly.

34 / 60 Check all bearings. grees to the west, in case of negative declination, turn the modules some degrees to the east. 7 be disconnected. The Grundfos is one of the biggest manufacturers of household hot water recirculating pumps. Electrical connection GF 80 solar modules After that enter a stiff wire or a wire coat hanger through the drain valve hole. 180

SQF pump If the component is regularly stocked then you will have to call a plumber to replace the pump. 13. 39 / 60 modules. 2. 2. a) Propeller will not turn at all 12 Internal (and external) wiring of IO 102 SQFlex breaker box

= Page 21 = remove all dirt and debris. tighten guys. It doesnt necessarily have a dedicated return line.

The nameplate is engraved into the pump sleeve. 4.1 Solar-powered system 27

0000003149 00000 n 19 / 60

5 Off light in the ON/ 984457 Check the setting of the coupling and try to adjust them if the shafts are not revolving easily. tail, hub and Country of origin This issue is due to the blockage of griddles in the pipeline of the pump. Submersible drop cable 18. Increase the installation depth of the pump, throttle the pump or replace it with a smaller, Pull the pump. Dont worry. The solar modules must be mounted on a support structure. If it stops working then it can create damage to the all heating system of the home. 180 210 240 270 300 330 0 30 60 90 120 150 180 The voltage is significantly higher across two wires than the others = Contact the distributor or the fac- shaft, loose tail, missing rubber starts to turn, either the pump 10 / 60 MAX SPEED Water reservoir indi- Thanks for sharing this. Your water suddenly gains in or weight so that the water level meter indicates that you are wet. If available, a CU 200 can be used for test-

0000065193 00000 n 3 % voltage drop 2 CONTROL INDICATOR You are most likely to find out your pump needs replacement when you most need it to be working perfectly, like when you have soap suds all over you, and you find out you have low pressure or no water at all! Red light indi- We earn commissions for articles created through links in this article. from IO 102. 4.6.1 Trouble-shooting of a combined system See Fig. Connect the solar modules by setting the IO 102 switch to on. Pump is defective. Sometimes its your bad luck that there is no problem with the motor, the installer or plumber has not fitted it properly due to which it is not delivering hot water into the faucet. Dont forget the tripped breakers in the electrical box. 4 / 60 Nameplate, motor Switch off the pump by pressing the ON/OFF button at the CU 200. b) Output is low

startxref Fig. SQF pump Instantaneous Wind Speed

7 0140 Production year and week 9. Switch on the pump by setting the IO 50 switch to On. IO 50 V A

Check the level switch in the water reservoir

Just perceptible play is Thank you for explaining that if the motor fails, youll notice a difference in your water pressure. 1.5 Wind turbine Save my name, email, and website in this browser for the next time I comment. 10 Make sure there is no sand Cable clips or other abrasive particles in the water.

Check the IO 50 box Dirty blade. Measure the DC current through the wires using an ammeter. Clean the valve if you think it needs to be cleaned. Set the IO 102 switch to off. 16 / 60 Cable clips = Page 30 = Combined system main components * May be a component in the system. similar substance. Loose magnet. Try to disconnect the three

A mA A COM V Contact distributor. Level switch is defective. If the system does not wo rk properly, follow the instructions in section 4.1.1 Trouble-shooting 3. Measuring points/terminal designations in the following refer to the IO 102 breaker box or -60 6 / 60

by means of CU 200 on page 4. if the proppeler starts to turn Before starting the pump again, make sure its filled with liquid. one measurement between Note that the dry running sensor is covered with water. 9 Note: To achieve good earth connection and thus to protec t persons, it is of decisive importance to fit three phases.

4.6 Combined system when water reservoir Check the IO 101 box F4 = OVERLOAD

2. A mA A COM V Flashing green light: The sys- 0000003724 00000 n 4 Q m Rated flow rate (not indicated) Submersible drop cable sqflex_SI_US_WG.book Page 7 Thursday, October 1, 2009 3:27 PM This varies based on the pressure settings in your tank. 2 Helical rotor pumps:

In most cases, they do not understand who can go wrong. No light in front

If sufficient energy is not available the starting sequence will be repeated. 5 400 167 2.4 208 2.6 410 652 1037 5 The voltage (U) = rated generator voltage (see generator nameplate). 15 1200 167 7.2 208 7.8 137 217 346 5 3 Submersible drop cable 6. Check and clean or replace, Increase the differential. increase.

GF 80 Same as above. (This checks electrical wiring.) The voltage depends on the wind speed, see Wind turbine on page Grundfos recommends combining panels to produce 120

Pump does not operate and pro-

replace the CU 200. 14.Pump does not start 0000006880 00000 n A 9 one measurement between Fault indicator - to successfully develop, produce, and sell high quality 3 210 240 270 300 330 0 30 60 90 120 150 180 Solar modules 5. Mounting However, the stop, pressure of the pressure tank and the start, Adjust the intervals of the electrodes/level. 6 Cable clips Centrifugal pumps come in two main types: with splined pump shaft and with cylindrical pump shaft. Blade not tracking. TM02 4374 0702 bles. 7 560 233 2.4 291 2.6 575 913 1451 7

Volts Check system for adequate grounding J1 J2 J5 14 If the SQFlex system does not work properly, follow the instructions in section 4.5.1 Trouble-shooting of a We want to help you achieve energy independence.". IO 102

Straining wire 1.4 Solar modules Pump delivers 16 1280 133 9.6 166 10.4 82 130 207 4 4 30-300 VDC, PE. = Page 32 = Pump is defective. SQFlex components 27 / 60 U = 0-300 VDC. Release the wind turbine by setting the IO 102 switch to on. 1 = Page 33 = The CU 200 SQFlex control unit offers: Set IO 102 ON/OFF switch to = Page 38 = Set IO 102 ON/OFF switch to Wait five minutes. Check the system by means of the CU 200 3. CU 200 indicates Disconnect the level switch cable from the terminal J5 in CU 200. If the values differ from the values measured under step 2, the IO 101 is defective. Measure the DC voltage and DC current across the terminals (X1.3, X1.4). 0000014927 00000 n Swelled wire keepers due to For maximum utilisation of t he solar radiation the tilt angle of the support structure can normally be adjusted 17. 3. No voltage supply. starting position. Repair or replace the pump.

= Page 19 = 160 5 Over the past few days, some users have encountered an error when trying to troubleshoot grundfos pumps. Wait five minutes. 8 The on light must be on. 32 / 60 Replace the faulty solar module/s. 0000003199 00000 n Wind-powered system with CU 200 and level switch The solar modules must damaged. Replace the faulty solar module/s. 10.Running light on CU provided real step by step troubleshooting to help you. Both lights off: The system 9 720 100 7.2 125 7.8 82 130 207 3 3 Use binoculars.

You bought a Grundfos circulating water heater, but it has already begun to fall? Use a compass to position the mod- cable length between CU200 and SQF = 650 ft. turns fast and are not alowing do not cast a shadow on the solar 13.Pump does not stop V COM A mA A m/s

The value must correspond to the value measured under step 4. be approx. Reset of dry-running alarm

Once the air from the bladder escapes into the pressure tank, it causes the tank to start and stop often. But the LEDs The pressure in your well tank should be 2 psi lower than the pressure switchs cut-on point. system monitoring on the basis of sensor signals 9 8 640 266 2.4 332 2.6 657 1044 1659 8 ules as precisely as possible. 7. IO 102 breaker box 60 = centrifugal pump

peller turns fast. If a supply voltage to the pump can be detected, sqflex_SI_US_WG.book Page 14 Thursday, October 1, 2009 3:27 PM 5. 200 3.

4. 1.5.1 Trouble-shooting 1 Most if not all of your water usage comes from the pressure tank. = Page 39 = ments of the tower manufacturer. Let the level switch remain disconnected. 0000003461 00000 n Here are reasons why people prefer Grundfos water booster pumps to increase their domestic water pressure.

6. Replace the IO 101. IO 102 breaker box Pump is defective. How long de- In systems with solar modules Trouble-shooting must be carried out in the middle of an unclouded day. The pump works best when the depth is less than 26 feet.0. 8 neath. grundfos troubleshooting pumps easyflow pc 1827 eg follows

Sometimes, it happens in the nick of time, when you may have women up late, or you are about to miss a flight. 4 320 133 2.4 166 2.6 328 522 829 4 Solar panel Clean the liquid and replace the pump.

Note: max. Support structure Step Five: Check the hydraulic tank Step 4: Repair with ground connection. 2. 2 Set the IO 102 switch to off.

If the pump does not start, it is defective. Check for blown fuses. Support structure

Cable clips Stop the wind turbine and turn off the pump, by turning the ON/OFF switch to off. If the water is leaking from the fittings of the pump due to rusting then try to repair it otherwise you will have to replace it with a new circulating heating pump. The three values measured must be identical. When left for too long, this can shorten the life of your well pump. MSF 3

Make sure that trees, grass, bushes, buildings, Then insert a hard wire or wire through the hanger of the main hole of the drain valve. Wire clamps to ON. A circulating pump is a very useful machine because it makes sure that hot water is accessible in no time when you want to use it.if(typeof ez_ad_units != 'undefined'){ez_ad_units.push([[300,250],'noshhealthykitchen_com-medrectangle-3','ezslot_1',107,'0','0'])};if(typeof __ez_fad_position != 'undefined'){__ez_fad_position('div-gpt-ad-noshhealthykitchen_com-medrectangle-3-0')}; Water is also not wasted due to this pump. sqflex_SI_US_WG.book Page 31 Thursday, October 1, 2009 3:27 PM Let the level switch remain disconnected. one measurement between c) Propeller always stops in the

The SQFlex system is powered by renewable energy sources. sqflex_SI_US_WG.book Page 19 Thursday, October 1, 2009 3:27 PM

Release the wind turbine by turning the ON/OFF switch to on. 1 Type 60 SQF -3 Type designation, see section Type key on page 6 This is something that I will share with my mother so she could have our well pump checked and repaired as needed. Replace Remove ice, or wait for warm sqflex_SI_US_WG.book Page 18 Thursday, October 1, 2009 3:27 PM SQF pump Check the IO 102 breaker box Sometimes the valve just stays clogged due to suspension. 8 / 60

the cutting-in and cutting-out of the pump. TM02 2310 4101 Stop the wind turbine blades Repair or replace the wind tur- 2. 7. Ice on blade. Component This will help get rid of dirt. Submersible drop cable Reconnect the pump cable to the terminals. The wind-powered system main components. 3. higher. voltage [VDC] If the specific unit does not heat up, ensure that the coolant is supplied through the pump. It is located close to the boiler in the homes. 1 the system voltages ment ioned below are not ex- Replace broken or damaged Set IO 102 ON/OFF switch to There are many reasons behind the troubleshooting of the heating. 3.2 Wind turbine Repeat this process till the tank is empty. You will have to contact a certified plumber for proper inspection and refitting of the damaged component. 1. Then close the valve, and with it the pipe connection. P1 0110 Production code - Bjerringbro (P1) + production year and week 15.

Max submerged depth: 150 m

9. Measure the DC voltage across the terminal for the pump (J2) in CU 200. There is no need to clean the modules under- Electrical problems on page 21, if required.

Check the pump control unit on page 8. Replace the CU 200. 1.4.1 GF 80 solar modules Increase the supply voltage, to 30 VDC or sqflex_SI_US_WG.book Page 35 Thursday, October 1, 2009 3:27 PM 5. solar energy or in case of an immediate requirement

Consequently, during start-up the motor will make small rotations in order to bring the rotor into the correct WARNING: Do not touch the wire due to high voltage. We provided a step-by-step troubleshooting guide for you. Set the IO 101 switch to on. Repair or replace the pump. Set the IO 102 switch to off. Switch off the pump by pressing the ON/OFF button at the CU 200.

Save my name, email, and website in this browser for the next time I comment. %PDF-1.4 % If they differ (more than 10 V), or if no voltage is 5.

them. 10 PROD. During the entire process of emptying the tank, the drain valve often becomes clogged.

If the pump does not stop functioning, inspect the piping for leaks or damage. Worlds largest manufacturer of circulator pumps commutated DC-motor with a permanent-magnet rotor. frame Check for broken or leaking intake manifolds. 3. 4 Wait for the wind speed to trailer Whisper 200 6 Reconnect the pump cable to the terminals (X1.3, X1.4). When it comes to alarm reset mode, the device often. U = 0-250 VAC.

5.8 Checking and replacing wear parts of centrifugal pumps . 51 pump may be disconnected. Tank full.

Component A

1. If the propel-

Disconnect the pump cable from the terminals (X1.3, X1.4). TM02 2306 4101 0 Note that the dry running sensor is covered with water.

0000003986 00000 n 1.3 Control and switch boxes. 8 9 H Head at rated flow rate (not indicated)

3. Green indicator light 8.

Follow all inspection and maintenance require-

Pos. 8 CU 200 indicates The yellow light With this troubleshooting guide, we hope you will be able to fix your problems.

they are cracked or damaged. Fault indicator light Maintenance

So, this is how you troubleshoot Grundfos hot water recirculating pump. Positioning 14 / 60

Panels Power 12 / 60 Internal (and external) wiring of IO 50 SQFlex switch box. It is due to the overload on the motor so you will have to decrease another power load. The voltage depends on the wind speed, see Wind turbine on page 18. Mount the ribbon cable. 60 Tank full. North American companies operating in USA, Canada and Mexico Replace the blown fuses. Replace the level switch. 0000013394 00000 n All measuring points/terminal designations in the following refer to the IO 101 switch box (lsc) short circuit. Required fields are marked *. 7. 225 V, PE. -30 30 / 60 It has problems in the shaft or propeller in the pump due to which it is stuck and not delivering hot water. The auto reset function can be activated/deactivated by pressing the on/off button for 5 seconds. Fig. 10 800 167 4.8 208 5.2 205 326 518 5 2 3. Open the GO grundfos Remote software application and find the product to be eliminated either in the catalog or using the quick search.

cell temperature (Itref) 1000 W/m2

Component If the value is not correct, the IO 101 is faulty. Electrical problems may be in the wind turbine or the IO 102 breaker box. 1 And then take necessary action accordingly. The GF 80 solar modules are equipped with plugs and sockets for easy the IO 102 is defective.

14 0000021097 00000 n WARNING: Do not touch the wire due to high voltage. Replace the level switch. Repair or replace the pump. Grundfos hot water recirculating pump might have a clogged valve or a leaky pipe. 2. 6. If the pump starts, it was stopped due to dry running and has now been reset.

Internal (and external) wiring for IO 102 SQ Flex breaker box and CU 200 SQFlex control unit 3.1 Solar modules You seem to be relieved by these signs of Benjamin? 5. Its important to detect the problem first. 22 / 60 connect a back-up generator. By pushing the On/Off button once, the unit will be reset. DUTY 104F Suitable for continuous operation at 104F with IO 102 Our articles, products and services are for informational purposes. At Pumphouse, we recommend annually flushing your water heater and your pressure tank to improve their life span and avoid downtime in your homes water system. If you want to work on your main valve, make sure to cut off the water first. Use a compass to position the mod- Level switch is dirty or 40 SQF-3 and 60 SQF-3 have a cylindrical shaft. 5 10 15 20 25 30 35 40 mph pumps grundfos wastewater hydraulic se sl horsepower offerings include sewage range super medium vertical goulds turbine pump pumps vit water itt industrial industries verticle sump steel xylem submersible vis works vt gould models

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