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Waeco CF50 Thermistor

Submitted: Tuesday, Jan 01, 2008 at 13:47

Shep

Due to freezing I suspect my thermistor has come away from its location on the evaporator, Been a fridgy I would naturally want to try to repair this fault myself , I have contacted some Waeco repairer in Sydney for info but like a true business persons (protecting trade secretes) they are happy to sell me parts but are reluctant to provide technical info, I know the thermistor is located somewhere on the evaporator would anyone know or have had their thermistor replaced? and is there evidence of where the sensor might be ? have they perhaps cut into the side of the cabinet and put a plate/cover where they have been.
Or has anyone attempted with success installed a standard thermostat (Engel or otherwise) to by-pass the electronics controller ?
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ThreadID: 53006 Replies: 4
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AnswerID: 279213   Submitted: Tuesday, Jan 01, 2008 at 15:11

Tony MD replied:

A thermistor is just a resistor that has its value altered with the temperature. It is a 2 wire device.
So, just trace a pair of wires from the control module to the evaporator area - most likely just inside the fridge compartment where the refrigerant lines enter (closest to the control module). Just went through this process with my Engel - it really couldn't be anything else but the thermistor.
Cheers & a happy new year, Tony.
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Reply 1 of 4
FollowupID: 543479   Submitted: Wednesday, Jan 02, 2008 at 10:54

Shep posted:

Thanks Tony, your spot on with the fact its a thermistor fault , however I wish it was that simple, I can see the thermistor wiring disappearing into a small hole in the cabinet above the compressor, you cannot even drop the compressor down to better assess the situation,I was hoping for an easier method of perhaps re-routing the thermistor to a location that's easier to install and access.
FollowUp 1 of 1
AnswerID: 279216   Submitted: Tuesday, Jan 01, 2008 at 15:19

Member No 1 replied:

take it back to the dealer...if its come away claim faulty workmanship....if it has come away it is poor workmanship and it should be covered by warranty no matter what the age of the unit......

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Reply 2 of 4
AnswerID: 279302   Submitted: Wednesday, Jan 02, 2008 at 07:33

Moggs replied:

I had the thermister on my CF50 replaced about 12 months ago. Apparantly they go after a few years. They didn't have to cut the fridge casing however they did say they needed to cut into and remove some insulation to access it via the compressor compartment. Had it done by a Waeco repairer and it cost $120 all up. I cannot see where they cut into the insulation though.

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Moggs (Melbourne VIC)
Reply 3 of 4
FollowupID: 543481   Submitted: Wednesday, Jan 02, 2008 at 10:59

Shep posted:

Thanks Moggs, the way the unit is designed it doesn't look like an easy repair, I was hoping that there might of been some evidence of the repair so I could do the job my self and save some $
FollowUp 1 of 1
AnswerID: 279415   Submitted: Wednesday, Jan 02, 2008 at 18:09

Member - MrBitchi (QLD) replied:

Mine's going in for the same problem tomorrow. :-((

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Reply 4 of 4
FollowupID: 543590   Submitted: Wednesday, Jan 02, 2008 at 19:16

Shep posted:

MrBitchi, sorry to hear, sound like a common problem, If your able to sus out any info on what they do your feedback will be much apprciated.
Rgds Shep
FollowUp 1 of 1
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