Primo 601258-C Temperature Sensor Replacement

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Introduction

If your Primo water dispenser (model 601258-C) is not dispensing cold water because it is freezing the cold water reservoir, use this guide to replace the temperature sensor.

The temperature sensor helps regulate the cooling system to ensure the water stays at the correct temperature. A faulty sensor may cause excessive cooling, leading to freezing.

Before using this guide, inspect the dispenser’s cooling settings and ensure there are no external factors affecting temperature regulation. If the sensor is indeed the issue, follow the steps carefully to replace it.

Before you begin the repair, completely disconnect the dispenser from its power source.

What you need

Step 1 Temperature Sensor

Primo 601258-C Temperature Sensor Replacement, Temperature Sensor: step 1, image 1 of 2

Primo 601258-C Temperature Sensor Replacement, Temperature Sensor: step 1, image 2 of 2

Remove six 9 mm Phillips screws from the back of the water cooler to detach the back panels.

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Step 2

Loosen the two 25 mm Phillips screws securing the radiator, allowing you to remove the backing.

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Step 3

Primo 601258-C Temperature Sensor Replacement: step 3, image 3 of 3

Remove the top of the cooler.
Press the tab and unplug the temperature switch from the lid.

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Step 4

Remove the back panel.

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Step 5

Carefully remove the insulating foam.
It can easily break apart.

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Step 6

Remove faulty temperature sensor.
Removing the old sensor requires moving some of the existing insulation tape.

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Step 7

Primo 601258-C Temperature Sensor Replacement: step 7, image 3 of 3

Use a wire stripper to strip the wire on both the old and new temperature sensors.
Here is a guide for Wire Stripping.

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Step 8

Primo 601258-C Temperature Sensor Replacement: step 8, image 3 of 3

Twist the ends of the wires stripped wires together and wrap them with electrical tape.
Alternatively, you can solder the wires and secure them with heat-shrink tubing. For tips on soldering and using heat shrink tubing, refer to these guides: How to Solder Wires Together and How to Use Heat Shrink Tubing.