RTD Test, V3

RTD Test, V3


This procedure tests the resistance of the RTD. The RTD measures the temperature of the brewing group. As the machine fluctuates in temperature, the resistance will change sending a signal to the board to heat or not heat the machine. Resistance on the voltage meter is measured in ohms. 

Tools Needed: 
Multi Meter




Time Needed: 10 min

Part Tested: 86000-20080 Single Group RTD W/ Molex
Procedure


Locate the wiring bundle to the brew group, the white wire with a red and white connection is the RTD. Disconnect the Molex connection (white connector)


Set the multimeter to Ohms, typically signified by the omega symbol. 


Insert the probes of the multimeter into the male Molex connection, one in each port of the RTD Molex,  and measure the resistance. The resistance should be 100 Ohms at room temperature. If the machine is heated up the range will be 130-150 ohms 


If the RTD is outside of the specs listed, the part has failed and will need to be replaced. 

    • Related Articles

    • RTD Test, Single Group

      RTD Test, Single Group This procedure tests the resistance of the RTD. The RTD measures the temperature of the brewing group. As the machine fluctuates in temperature, the resistance will change sending a signal to the board to heat or not heat the ...

    • Replacement of RTD, Espresso Line

      Replacement of RTD Espresso Line Tools Needed: Philips Screwdriver, 12mm Wrench, Teflon Tape Time Needed: 30min Shut off water Turn off power Remove screws on group cover Remove Group Cover The RTD has the white wire running off of it Follow the ...

    • Catch Test, V3/Single Group

      Catch Test What does a catch test tell us?  A catch tests tells us a lot of information in a little amount of time. Mainly if there is any restriction of flow anywhere in the brew system. If we know the flow path is clear, we can troubleshoot ...

    • 24 Volt Power Supply Test

      24 Volt Power Supply Test Slayer recommends that all service on electrical parts be performed by an experienced Slayer Espresso trained technician. Time: <5 minutes Tools: #2 Philips head screwdriver Voltmeter Servicing, operating, and installing ...

    • RTD Test, Single Group

      RTD Test, Single Group Slayer recommends that all service be performed by an experienced Slayer Espresso trained technician. Time Needed: 10 Minutes Part Tested: 86004-20080 Single Group RTD W/ Molex Parts can be requested from our Customer Logistics ...