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avatar: davidkain
davidkain
46 posts
Replied to davidkain's post on June 7th, 2012

This is a 5332.

Eppendorf tech support says the block needs to be replaced, $1520 part with a complicated calibration. Then tried to sell an extended warranty. Is there a less expensive fix?

These folks are never helpful to outside service.

Thanks to all

avatar: Bodasafa
Bodasafa
44 posts
Replied to davidkain's post on April 22nd, 2015

HI, this may be late but i may be able to help. Do you have a contact email?

avatar: dkg
dkg
41 posts
Replied to Bodasafa's post on May 5th, 2015

dear bodasafa,

 

i also hv 5333 with tsensor 1 error. we suspect its peltier defective. if u hv different solution pls let us know.

dkgupta

tekutron@gmail.com

avatar: curvin444
curvin444
1 posts
Replied to Bodasafa's post on March 17th, 2016

Hi, could you help by a "TSensor0Error"? We run a 5331.

avatar: service3683
service3683
19 posts
Replied to davidkain's post on March 21st, 2016

There is basically no fix to the thermoblock itself. Someone told me once that if you get to replace the peltier cell element you could fix it. I've never tried myself but if you can... do it!.

avatar: Bodasafa
Bodasafa
44 posts
Replied to service3683's post on March 22nd, 2016

The T sensor error is a failed sensor in the block. The sensor can be replaced, the unit can be calibrated, I have done it several times. It is not the easiest job but it can be done.

avatar: service3683
service3683
19 posts
Replied to Bodasafa's post on March 22nd, 2016

What sensors did you replace?.

avatar: Bodasafa
Bodasafa
44 posts
Replied to service3683's post on March 23rd, 2016

When you get a "TSENSORxxERROR" the xx wil give a number 

0=Left thermoblock sensor

1=Middle thermoblock sensor

2=Right thermoblock sensor

3=Lid sensor

4=thermoblock cooler

You can also check the sensor by going into the service software, the defective sensor will usually give --- instead of a temperature. The sensor are located in the back of the block, sealed in with "silicon?" they are type SMT-160 3 wire thermistors. If I remember correctly a red, green and gold wire. Let me know your email for further info.

avatar: rbwalter
rbwalter
29 posts
Replied to Bodasafa's post on March 31st, 2016

Bodasafa,

I'd be very interested in any info you have to replace the thermistors.  My e-mail address is rbwalter-at-indiana-dot-edu.

Thanks.

avatar: Haratianfar
Haratianfar
3 posts
Replied to Bodasafa's post on April 2nd, 2016

Hi I'm having the same problem Please help me

Hamid.Haratianfar@yahoo.com

avatar: Douglasc
Douglasc
2 posts
Replied to Bodasafa's post on April 28th, 2016

Hi,

 

We have a tsensor 1 error which I was going to attempt to repair. I was wondering if you have any details on the sensor replacement and calibration.

 

Thanks

avatar: service3683
service3683
19 posts
Replied to davidkain's post on May 10th, 2016

Calibration requires a special calibrator tool from Eppendorf. Only authorised service has it.

About sensor replacement you can try to disassemble the thermoblock and find a similar peltier element and try. If it works, I'm sure you'll have to calibrate the thermoblock with an authorized service company.

avatar: VerSki
VerSki
26 posts
Posted July 8th, 2016

Silverlings Instrument Services can help with this repair.

Either send us the whole instrument, or just the thermal block (requires de-soldering), or the thermal block/PCB/fan assemly (requires no de-soldering).

We will fit a replacement temperature sensor at relatively low cost.

(We are in the UK.)

avatar: Simba
Simba
42 posts
Replied to Haratianfar's post on July 12th, 2016

Repairs can be done at Phoenix Equipment, Rochester, NY

avatar: Simba
Simba
42 posts
Replied to davidkain's post on July 12th, 2016

Hi... I am a former Eppendorf tech... currently work for Phoenix Equipment.  The blocks can be disassembled.  Peltiers and temp sensors are all replaceable parts.  The work is involved but can be done.

 

avatar: Roula
Roula
2 posts
Replied to Simba's post on November 11th, 2016

would you please give us more details about fixing the problem  

we tried to replace the sensor but in vain

avatar: Simba
Simba
42 posts
Replied to davidkain's post on November 14th, 2016

Phoenix Equipment in Rochester NY, can help you with this, either with the advise on parts or complete rebuild at reasonable rates.

avatar: rahem
rahem
1 posts
Replied to Bodasafa's post on November 19th, 2016

hi dears

please help me to solve Tsensor 0 error in minimal cost.

can we change the sensor ourself? what is tje compelet name of the sensor?

thank you

my email: khoshbakht.r@gmail.com

 

avatar: SuperDario
SuperDario
2 posts
Replied to Bodasafa's post on August 8th, 2017

Bodasafa, 

I've got that error showing up on a Mastercycler I'm troubleshooting.  I'm able to replace the parts myself as I am in the service industry.  

Please contact me at  I would like to find a source for parts & methodology on how to get this repair going.

thank You, I look forward to hearing from you.

 

Dario

avatar: tedkgr
tedkgr
2 posts
Replied to Bodasafa's post on August 23rd, 2017

Could I get the info as well, same 5331, 

thank you

avatar: amnjunior
amnjunior
2 posts
Replied to Bodasafa's post on August 24th, 2017

would you please explain me how can i fix (Mastercycler Gradient t sensor 1 Error) because i saw what had posted ¨1=Middle thermoblock sensor ¨

my email : amnjunior@yahoo.com.br

Thanks  a lot

 

Aguinaldo Nascimento Jr

avatar: VerSki
VerSki
26 posts
Replied to amnjunior's post on August 30th, 2017

It is possible to replace the sensors. These are HEC172 sensors (although the earlier cyclers had HEC160, and it's not clear when exactty the change was made - if they were built with HEC160 you can't use HEC172, and vice versa). It requires micro-soldering, with very strict time/temperature control, so as to not damage the sensor. The use of enamelled wire is recommended, as the sensor solder terminals are just 1mm wide. The sensor is a PWM device, so  the output is digital (square wave). So if you supply the sensor with a steady 5vdc between Vcc and earth, you can pick up the output on the "signal" wire/terminal. Mounting of the sensors in the block ( - some models have 3 sensors, some just one - ) is relatively straightforward, but care has to be taken not to short out to the metal of the block. They can be mounted using silicon glue: the base of the sensor must be hard against the wall of the recess in the block for heat-transference reasons. Finally, the 3 wires can be soldered to the PCB. I can supply HEC172 pre-soldered for anyone who wants to give it a try. As the sensor output is a signal rather than a voltage, there is usually no need to recalibrate - although you do need to be able to check a series of temperatures 4, 37, 60, 72, 95°C, to confirm accuracy. Contact: Silverlings Instrument Services (see website).

avatar: SaharaSimba
SaharaSimba
81 posts
Replied to davidkain's post on April 26th, 2018
People have many options and alternatives ... there are little guys like us with the experience needed to rebuild these blocks... one option for block rebuilds or parts to do it yourself is www.saharasimba.com
avatar: adrian
adrian
4 posts
Replied to Bodasafa's post on December 2nd, 2019

Hi,
You mentioned you replaces the sensor several times. I have a 5333. Do you happen to know the sensor details?

 

Much appreciated,

Adrian