I have a Taylor C707-23 that is freezing the product in the barrel and not dispensing. Then the drive motor trips. Had the sensor probe changed same thing.

If the left side of your Taylor 754-27 ice cream machine is freezing in the tub but not in the barrel, there could be a few potential issues to consider. Here are some possible causes and troubleshooting steps:
1. Insufficient refrigerant flow: Check if the refrigerant flow is restricted or inadequate, which can prevent proper freezing in the barrel. Ensure that the refrigerant lines and valves are clear and not blocked or clogged. You may need to clean or replace any filters or strainers in the refrigerant system.
2. Temperature control malfunction: Verify that the temperature control settings are correct for the barrel freezing process. The control thermostat may be faulty and need replacement. Check the temperature sensor and wiring connections to ensure they are in good condition.
3. Insulation problems: Examine the insulation surrounding the barrel to ensure it is intact and properly insulating. Insufficient insulation can lead to the barrel not freezing as expected. If the insulation is damaged, replace it with appropriate insulation materials.
4. Barrel motor or drive system issues: If the barrel is not rotating properly, it may result in inadequate freezing. Check the motor and drive components responsible for rotating the barrel. Look for any signs of wear or damage and ensure they are functioning correctly. Lubricate the drive system if necessary.
5. Refrigeration system malfunction: A problem with the compressor, condenser, or evaporator can impact the freezing process. Inspect these components for any signs of malfunction, such as unusual noises, leaks, or inadequate cooling. If any issues are found, it is advisable to contact a professional refrigeration technician for repair or servicing.
6. Improper assembly or installation: Double-check the gaskets, seals, and o-rings that were replaced during maintenance. Ensure they are properly installed and creating a tight seal. Any gaps or leaks in these components can affect freezing performance.
If you have attempted these troubleshooting steps and the issue persists, it is recommended to contact a professional technician who specializes in Taylor ice cream machines. They will have the expertise to diagnose and repair the specific problem with your equipment.

Might help

Adjustment for hopper temp is center small blue dial on left touch control panel. Marked mix. Counterclockwise is warmer. If it's both hoppers freezing up and that's turned warmer, probably the thermistor probe. If it's just the left, low on refrigerant. There's a leak.

Refrigerant flows through the AXV on the underside of the barrel assembly. Once expanded, it flows around the freezing cylinder in a spiral fashion, and then pulled through the suction line. It freezes from front to back and as its freezing, the inner beater assembly scrapes the frozen product from the side walls. As it thickens, the amp draw of the beater motor is measured and once the appropriate amperage is detected, the motor and compressor are shut of. This amperage can be adjusted by turning the Viscocity potentiometer on the Logic board at the top of the machine or by changing the setting through the technicians menu if you have a crown series machine.

That code means the right side hopper thermistor probe has failed. That is the sensor that reads the temperature of product in the mix hopper.

This is the part you need:
http://www.softserveparts.com/i-26471492-thermistor-probe-c712-c713-barrel-stanbye-probe.html
If you order it from us, I would be happy to put a technician on the phone to help you install it yourself.

In standby mode, the machine just wants to keep the product refrigerated until it goes back into auto.

So, the mix cabinet needs to keep the product cool in the bottom of the machine, that requires the mix compressor and fans to run. The mix cabinet temperature is read by a thermistor probe and regulated by the (left side) logic board.

The product in the cylinders should go back to liquid form in standby, but we still have to maintain that safe food temperature, the motor and compressor will run periodically. If the machine is air-cooled a fan will run anytime the compressors run. If it is water cooled, water will flow through the machine when the compressor runs. The temperature in the freezing cylinders is read by a different thermistor probe and regulated by the logic boards.

Here is a link to all of the parts in a Taylor 8756.
http://www.softserveparts.com/c-1335911-parts-8756.html

if the product is frozen in the barrle for sure then you have a bad micro switch that is telling the compressor to keep running, but that product would be super frozen and come out in the shape of the barrel. if it is the consistancy of ice cream then your pump gasket might be bad and not properly pressurizing your barrel and giving you the impression of a frozen barrel.

Buy a STOELTING instead!!!

The same thing happened to my Taylor 8756 and it was the thermistor probe. The probe is a thin copper tube that is near the freeze cylinder. It cost me about $20 for the part and $200 for the labor to have a technician put it in. Hope this helps and good luck.

That is most likely the stand by probe. The standby thermistor probe measures the temperature of product, in this case in the freezing cylinder, while the machine is in standby. Usually when the thermistor fails, you come in in the morning to find that the product is liquid and the reset has been tripped. The motor should be nowhere near the overload setting in standby as the product should be liquid. Thermistor probe C712 C713 Barrel Stanbye Probe

i need to know where i may go to get directions to put this taylor 8756-22 ice cream machaine back togeather if you can help please e-mail me at johnjohnson1967yahoo.com thanks