Troubleshooting Kouwa: Common problems and repair info

Kouwa for Service call 1-336-969-0110 at Industrial Electronics Repair

Kouwa Service & Repair Forum

I am looking for a flow switch. for model #KOEJ112BOV Serial # 1510-R0490-N81. Hope you can help

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— Posted by Jeff Kramer on 2019-11-14

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Recent 58 Comments

#Kouwa by Darrel on 2017-09-15 10:01

I need a compressor for a kouwa kmv-150-m15-b but the BTU of the unit is not listed in the maunual. It's a 220v 3ph system.Do you sell the compressors? If so how much are they and what is the BTU rating?Thanks!!

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#Kouwa by dinh cong nguyen on 2017-04-04 03:45

I need a troubleshooting manual for KOUWA LIQUID TUNER model :GK-150T-FZC-BE (english langauge).Now machine alarm code show E6 .Thank you

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#Kouwa by Dhani Persaud on 2018-11-21 13:42

Looking for pricing for a compressor # C-2NR153H3a (808-051-83) and a fan motor # VAS405BS-42. Both from a Kouwa chiller unit # KMV-150-M14-A

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#Kouwa by Stephan Holzinger on 2021-08-18 10:14

spare parts price and delivery time for a compressor for KMV 110 M21-A

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#Kouwa by Richard Gillispie on 2011-11-14 14:32

Need to know were we can get a compressor for a model KMV-150-M15-A please respond soone, Thanks

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#Kouwa by Kris Felina on 2011-10-19 20:31

Hello,Does anyone have a list of fault codes? Or the \"Troubleshooting Guide?\"Thank you.

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#Kouwa by JOHN D REED on 2021-02-01 20:16

I have a Kouwa chiller Model KMV-150-M15-B I keep getting a EJ alarm which is not in my manual. Any ideas???

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#Kouwa by Ben F Graves on 2025-06-09 03:43

The Kouwa KMV-75-M02-B unit is not functioning properly according to the maintenance team. Please inspect and troubleshoot as needed.

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#Kouwa by Jeff Kramer on 2019-11-14 18:24

I am looking for a flow switch. for model #KOEJ112BOV Serial # 1510-R0490-N81. Hope you can help

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#Kouwa by Luis De la cruz on 2015-07-22 17:43

Hi , would you mind to give me a quotation for the chiller unit Model Kouwa Model KMV-150-M15.Thank you in advance.

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#Kouwa by Paul Nowicki on 2025-05-28 06:39

Hi there, Can the Kouwa KMV-75-MOZ-B chiller unit board be repaired or purchased as a replacement? I'm trying to check this off my to-do list. Thank you.

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#Kouwa by Tom Lutz on 2020-12-07 16:38

I Have Model # KMV-75-M02-A W/ No Manual Alarm E1 on Unit.

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#Kouwa by John Swank on 2014-12-03 16:23

We have a new chiller that is missing a ribbon cable connecter.Is this something you could supply for us. Or would you know what we need order.Thanks John Swank (773)501-7281

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#Kouwa by Keith Cannon on 2012-06-05 20:19

I have a manuel for the Kouwa model: KMV-150-M16-B-002 but not a parts list so I can order a cover for the wires above the condenser and a cover for the reset switch. That\'s just a start, having the parts list would be very helpful.

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#Kouwa by Rashpal Singh on 2016-09-28 09:05

Hello there,We have Mazak 410 VMC with Serial no. 175268. There is Kouwa Liquid Tuner installed in it for spindle lubrication with Model no. KMV-75-M02-B with Mfg. No. 0607-M9038. It shows EE alarm on display and we are not capable to remove it. Kindly provide a suitable person or mail-id or if you …Purchase or Repair:

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#Kouwa by Jesse Galien on 2012-07-19 14:09

Looking for a facility to repair our Kouwa hydraulic chillers ( model KMV-150-M16-B ). Are you interested?

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#Kouwa by Jim on 2013-09-23 20:48

Kouwa KMV-150-M16-A throws an E8 code. Ambient pressure is around 140psi at 75 degrees. Unit will run for about 3 -5 minutes and throw the code. Current to the compressor is about 3.6 amps. Is this a good value? On page 8 of the check out procedure the term \"thermal setting value\" for current i…Purchase or Repair:

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#Kouwa by edmundo navarro on 2016-05-24 14:03

we have a Mazak VCN 510 C serial 162546 march 2003 with a schiller KMV-75-M02 the board NAYUTA NB-584 is out of orderWe do not know if the display is ok or notpls your comments asap we are in a hurry with that machine cordially

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#Kouwa by Holohan Heating and Sheetmetal on 2011-10-07 13:07

I have a customer that is using a Kouwa Mod# KMU-150-M-16-B S/N 181776 oil cooler. Can you tell me what pressures to expect and how much 407C is supposed to be in the unit? We just replaced a stuck compressor and my suction pressure is at 0Psi. Performed system flush, installed new strainer and cap …Purchase or Repair:

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#Kouwa by suresh mahajan on 2015-02-22 14:47

Pls technical support

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#Kouwa by Mr. Peerasij chadathorn on 2015-02-05 05:47

I need a troubleshooting manual for KOUWA LIQUID TUNER model: KCT7-A52N (english langauge). Now machine alarm code show E2. Thank you Peerasij

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#Kouwa by Jesse Galien on 2009-09-16 15:08

I have a Kouwa hydraulic chiller ( model KMV-150-M16-B )attached to a Mazak FH6800 and the compressor burned up in it. I am looking for a replacement. Do you have one or know where I might find one. I need it ASAP.Thank you for your time,Jesse

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#Kouwa by Alan Trimue on 2017-04-06 10:33

Good morning our unit a KMV-150-M16-C. tHREW AN E8 fault. Per Mazak tech he said it was a bad compressor. We are trying to locate a compressor for this unit. We have a very hot job to run on this machine and need it repaired asap. Any help would be greatly appreciated. If you need additional info ca…Purchase or Repair:

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#Kouwa by jerry fritts on 2019-01-11 15:06

hello i have a kouwa chiller on my mazak its flashing EJ on unit wanted to see what this meant thanks

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#Kouwa by Leonard Ruedlimger on 2010-10-25 15:54

Need condenser fan motor for an oil cooler model - KCT7-A52NPV.3 phase 200 volt 50/60 cycle.Serial number 0503-G8607Motor Model - VAS355BS-42 .2KW output.

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#Kouwa by David Goodrich on 2015-12-09 17:45

I am getting an EA fault code on tuner display as soon as the unit is powered up. The EDM that it is attached to comes up with a false U794 high fluid temp alarm. I have checked all the wiring and fuses as well as the phasing of the motors.

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#Kouwa by CDANIEL on 2022-01-10 14:19

The condenser coil on my kmv-150-m34 unit is leaking , which is causing a chiller malfunction alarm. Does anyone know who to contact for a replacement condenser coil ????????

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#Kouwa by Gopal on 2012-03-19 11:31

Kindly let us know whether there is any Kouwa chiller service facility in India.

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#Kouwa by steve Holder on 2015-05-19 15:34

HiI need a compressor motor for a KMV-150-M14-C, we require this part urgently so details of agents in the UK or Europe would be helpful.is there a specification available for this compressor so we can source our own unit?

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#Kouwa by Vishal Hadai on 2025-05-21 18:49

We are currently encountering an error code E9 on our unit, which indicates low oil pressure (flow). I am unsure why this is happening, as the three circulation pumps and the compressor are not activating. Additionally, the CNC lathe which we are using the unit on, does not trigger an alarm indicati…Purchase or Repair:

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#Kouwa by STEVE GARNHART on 2011-09-08 15:23

I have a KOUWA liquid tuner MODEL KMV-150-M14 using R407C refrig. I have installed a new compressor in this unit and need to know the amount of refrigerant to install in the unit. Iwould also like the running pressures thank you

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#Kouwa by XAVIER ROLLAND on 2010-11-26 10:34

Hello,I have some problems with a KOUWA type KMV-150-M14-CCould you send me electrical sheet please ?thank you in advanceBest regardsXavier ROLLANDMaintenance ManagerFAMER INDUSTRIE

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#Kouwa by John Lynch on 2017-06-26 18:30

Getting an E7 alarm on the unit. What is the normal cause of this?

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#Kouwa by Chris Haigler on 2017-03-27 22:16

Our tuner got a E9 error and then the controller went out. Pulled the controller cover and found NB0793 is smoked. We are trying to locate another circuit board to replace it with or maybe even have this one repaired; whatever is the quickest. Thanks, Chris Haigler

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#Kouwa by Patxi Mugica on 2020-12-10 10:21

I have a customer that is using a kouwa KMV-110-M10-A oil cooler can you sendt my a parts list.KMV-110P-M10-C01

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#Kouwa by Mark Schwiegershausen on 2012-06-05 13:39

Can the temp diff. be set any greater on a KMU-150-M16-B liquid tuner? the system currently has about 1 deg C between on/off cycle. Orignial compressor locked up. Charge was correct. We believe the excessive start/stop of the unit caused lock-up

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#Kouwa by mandervelt on 2012-09-21 14:47

I have a customer that is using a kouwa KMV-110-M10-A oil cooler can you sendt my a parts list.Mandervelt J.M.Gemacool Genk,Belgie

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#Kouwa by Myles Opheim on 2011-01-21 17:59

Check to see if you have a Sanyo, model number C-2RN153H3A-tse or possibly a Toshiba TH207JA / TG240X2-FLwww.smallchiller.com

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#Kouwa by Nathan Olson on 2011-02-08 15:35

I have a model kmv-110-m10-a, and it is used as a spindle coolant chiller and pump for a Masak 510 mill. The problem is that I am getting three alarms. The chiller unit in giving an E-9 alarm ( Oil pressure (flow) is lowered.) Consequently, that is generating two alarms on the masak machine side. 20…Purchase or Repair:

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#Kouwa by Kyle Weeks on 2022-03-16 12:57

Have an Eu alarm on a brand new Kouwa chiller unit on a Mazak ST550. can not clear. Any suggestions?

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#Kouwa by Alain GOLLING on 2013-04-30 10:33

Hello,i would like to have price and deliveryconditions for a compressor KOUWA type KMV-150-M14-C-002 on R407 C gas and 3 x 200 V 50/60Hz.Can you inform me as soon as possible please ?I am a refrigeration company in Belgium (www.golling.be)Best Regards,Alain GOLLING

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#Kouwa by John Demers on 2019-12-04 21:57

Mazak 6800 HMC uses Model KMV-150-M14-C. Had a 30 amp trip shut down machine. Traced to low oil in the in the Hysol (Left side oil fill port). Still tripped. The CM motor starter 4th from left was dirty with carbon. We changed it out. Still trips. We ohm'ed out the motor. Seemed good. Thinking …Purchase or Repair:

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#Kouwa by Andrew Maass on 2013-01-25 21:44

The above Model is on a Machine where I continually get an \"E8\" Error for Thermal Relay Overload. The Compressor will run for no more than 1 minute. Amps or Watts run high. Seems like an internal failure on Compressor. Any other thoughts before I replace Compressor? Condenser Coil is clean, great …Purchase or Repair:

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#Kouwa by Menissier on 2020-04-24 08:49

bonjour je recherche un compresseur R407C KOUWA LIQUD TUNER KMV-150-M14TARIF + FRAIS DE PORT ET DELAISSALUTAITONS

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#Kouwa by Bonnie Foor on 2010-04-23 19:36

Hello, I am with a HVAC/R company in Southeastern Michigan and have a customer with a Kouwa chiller that needs a new compressor, I would like to help them out, can anyone point in the right direction? i called the number above but only got voicemail. It is considered an urgent situation and i would …Purchase or Repair:

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#Kouwa by ADRIAN PENA ALANIS on 2014-04-03 15:29

Hello, We have a bad compressor SANYO part: C-2RN153H3A code: 80805183 This it installed on KOUWA LIQUID TUNER model: KMV-150-M16-B Mfg. No. 0601-M7189 Could you send us please price and delivery time. We are in Nuevo León, México. Please, send the answer as soon as posibble. Thanks.—> …Purchase or Repair:

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#Kouwa by Joe Colombo on 2014-03-04 15:49

I have a Showa temperature controller Model#sho-650-104-lfvc-dc in the instruction manual it says to contact you for service.Is ths correct? and if it is do you have parts and tech support. our unit is running but we are going to need filters ect. down the road.thank you for your time,Joe colombo—> …Purchase or Repair: