Faulty Fridge - Do Not Worry

[vbk1975]

Thank you!

So does that mean you believe the sensor is working ok?

Maybe the problem could be with this module:

E-Regler 296.9704.53 - Cool & Shop

E-Regler, RC1144, RC1132, RC1160

coolandshop.de

I’m not sure what it is or does?

Thanks again for your help

Yes, I think it is the switching box that is likely the issue

So from what I can determine it is a switching box (Transistors and resistors) that not only switches the Fridge controller on (Red wire from Van side) it also switches in a resistor between C & T that sets the fan speed (I think) and it has some other resistors in there that I think set the voltage thresholds for operation. I would open it carefully and see if it has a dry joint.

The first vans just had a standard relay in the place of this. Relay driven by the 12v from the Control Panel, earth to body and then the relay connected T to P&C (Spliced together) when the relay was switched on

 

[vbk1975]

Yes, I think it is the switching box that is likely the issue

So from what I can determine it is a switching box (Transistors and resistors) that not only switches the Fridge controller on (Red wire from Van side) it also switches in a resistor between C & T that sets the fan speed (I think) and it has some other resistors in there that I think set the voltage thresholds for operation. I would open it carefully and see if it has a dry joint.

The first vans just had a standard relay in the place of this. Relay driven by the 12v from the Control Panel, earth to body and then the relay connected T to P&C (Spliced together) when the relay was switched on

I would contact https://penguinfrigo.co.uk about getting a replacement black box.

If you do replace it, could you please open up your old one and take a detailed photo, it is one part that i don't really understand the resistor values and thus what exactly it is setting fan speed wise.

I suspect the Fridge consumes less power overall and protect the batteries with this box, as it probably slows the fan down and stops the fridge at lower voltages.

A

 

[reserves]

I would contact https://penguinfrigo.co.uk about getting a replacement black box.

If you do replace it, could you please open up your old one and take a detailed photo, it is one part that i don't really understand the resistor values and thus what exactly it is setting fan speed wise.

I suspect the Fridge consumes less power overall and protect the batteries with this box, as it probably slows the fan down and stops the fridge at lower voltages.

A

Thanks again

I’ve found the VW part number for the relay which is

7H7951253

It’s around £27 from VW but takes a week to arrive.

I’ll certainly open up the old unit and send some photos. Or if you’re in the UK I can send it to you.

 

[reserves]

Thanks again

I’ve found the VW part number for the relay which is

7H7951253

It’s around £27 from VW but takes a week to arrive.

I’ll certainly open up the old unit and send some photos. Or if you’re in the UK I can send it to you.

In case it’s useful, I turned the fridge on for an hour (bypassing the relay) and the temps came back as:



TN5 being the reading, the value has changed significantly.

So confirms to me that the sensor is working.

Will order the relay and report back.

 

[reserves]

Thought I'd updated this, but just to say the new relay fixed my issues

 

[edwatters]

Thought I'd updated this, but just to say the new relay fixed my issues

I’m having the same problem you describe. With the TCP relay removed and a bypass wire the fridge comes on and cools. No faults on the diagnostic. Penguin said likely to be the thermostat but your post says not. Did I read that correctly?
Help much appreciated


Sent from my iPhone using Tapatalk

 

[reserves]

I’m having the same problem you describe. With the TCP relay removed and a bypass wire the fridge comes on and cools. No faults on the diagnostic. Penguin said likely to be the thermostat but your post says not. Did I read that correctly?
Help much appreciated


Sent from my iPhone using Tapatalk

Hey,

Replied to your PM bit in case it helps anyone else then yes, a new TCP relay should for your issue

 

[vbk1975]

I’m having the same problem you describe. With the TCP relay removed and a bypass wire the fridge comes on and cools. No faults on the diagnostic. Penguin said likely to be the thermostat but your post says not. Did I read that correctly?
Help much appreciated


Sent from my iPhone using Tapatalk

The California works slightly differently from the standard Fridge setup, the thermostat goes directly to the control panel and then between the control panel and TCP relay it mimics a thermostat input to request the fridge on and off.

If you read back to my posts, you can see if the Control Panel Thermostat input is varying.

The TCP is a tiny series of electronics and the one I got sent by one of the other members had failed internally. I don’t want you to waste money, but without spending hours trying to diagnose it (which I would do and regret) I would check if the thermostat input is varying and then if it appears to be, then for the cost of the TCP relay and ease of changing it, I would swap it as a first step.