How to Diagnose a Defective Freezer Defrost time clock. 

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your welcome

Your welcome.

Thanks man.

Hasn't really been that bad yet. Im by the south coast. So i don't get the inland heat.

Thanks.

Thank you ! Glad u liked it. Thanks for Watching & subscribing.

thank you ! Yea , it came out well.

Thanks , yea it should.

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Thanks Nc.

yw.

You know , i think u probably could. Id size it at twice the Amp draw of the Heating Element amps. Nice idea. I think it Might save some stress onthe rime clock in the event of A Heating element shorting to ground. I ve never seen it done though. Try it , let me know.

Carrier. City of industry. California. Call for training classes. Tech 1 & Tech 2.

I Remember way back when i started , electrical was very difficult to grasp the troubleshooting. It will just come with time. Maybe grab a few electrical troubleshoiting books at the library. If u get the opportunity to go to carrier training school - thats where i learned hopscotch. Very good training school. Take Tech 1 & Tech 2 Training classes. What state are u in ? California ?

in the winter time, when it slows down, ill be putting up alot of electrical & electrical troubleshooting videos.

Hopscotch is basically explained by Putting your black lead from your meter on one side of the circuit , lets say your troubleshooting a 24 volt circuit. Black from your meter would go on common side of transformer you leave it aligator clipped to the common on the transformer, Then You hopscotch through the circuit using a wiring diagram to find the open with your red meter lead starting at transformer 24 volt red side , testing each point on the wiring diagram to see where u loose 24 volts on Your meter. Its that simple.

OcRefrigeration,Hvac & Electrical. I live in San Fernando valley

I went to carrier school in city of industry. 1983 & 1984 So, its not that far away from you. Call carrier and see if they are still doing school in city of industry. See what it costs. I took Tech 1 & Tech 2. Classes. They teach schematic reading in depth & hands on troubleshooting in the class room & Workshop with equiptment. Very excellent school. You get Diploma too. And class picture.

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Highly recommend u call a Refrigeration service company for repairs. If your not going to do that - Turn off the Power at Breaker panel & Look for burned wires in Freezer compressor panel & inside evaporator. If burned wiring found repair as necessary. If none found: turn power back on & Turn time clock. So Green light is on & Red light is off. Cooling mode. If u want to replace a Part - The defrost clock is a good place to start if it’s over 10 years old. common failure. Get Your voltmeter - if u don’t have a voltmeter Or know how to use one. Call a Service company. If u do - From N to 1 on time clock - you Should Read Line Voltage. Either 208 or 115 volt. Whatever the Power is that’s supplied to the unit. If no power - u have a incoming power issue. Call - a Refrigeration Service company. a Good visual inspection with the BREAKER Off !!!!! can find a lot of problems. Make sure power is OFF !!!!

The Condensing unit on the Roof is a 9 Year old Heatcraft. The Evaporator is 9 years old too but, i am not sure its a heatcraft or not.

Freezer evaporator Must be Below 30 degrees & Fan(s) MUST be Operating then put freezer in defrost, set defrost time at maximum over 1 hr , when evaporator coil temp hits 50 degrees+ power will be applied to x , and defrost clock will pop out of defrost & switch back into cooling mode. it at this point in time when u can measure voltage between x and N. You will read voltage at this time until evaporator temperature drops below 50 degrees and fans ARE ENERGISED / Running. at this point you will no longer read voltage at x if Everything is working as it should.

Also --- As a Side note. if Freezer Defrost time clock is over 10 Years old. Replace the Defrost clock as a Maintenance item Every 10 Years. Thier is a Date tag at the top of the defrost clock. Defrost clocks Fail ALL THE TIME. The clocks stop turning , they stick sometimes intermittently , Remove clock and check for burned points in brass contacts area , they dont keep correct time , if it does not turn smoothly , replace the clock.

Yes. Only for digital models. Analog clocks / intermatic are Not Auto select voltage yet. You still have to select voltage and model type for analogs.

www.supplyhouse.com/Intermatic-DTAV40M-Auto-Voltage-Defrost-Timer-2-HP-120-240V?gclid=EAIaIQobChMIy4_Q7Yvt7AIVFBx9Ch1Psw5jEAQYBCABEgJWtPD_BwE

I suppose u could. Just never seenit done. But, makes sense.