How To Troubleshoot a Walk In Freezer Running Warm 

I'm a 21 y/o apprentice and they put me on call. Got a walk in today that was running warm and watching this on my way to the call definitely gave me a starting point , and made me look way more professional than calling around for answers scratching my head. You got a new subscriber!! Turned out it was low on Charge, and has a nasty kink in the discharge side from a push cart.

I appreciate your approach. I can't tell you how many times I've butted heads with my boss who's a "veteran" refrigeration guy. No joke, he insists on going to the condensing unit first, will not enter the cooler. My approach is that I must first verify the fans are running, no ice on coil, thermostat calling, and solenoid is energized before going up top.

I’ve been doing HVAC-R for about 8 years. This whole time I’ve never thought about using voltage to check continuity. I am always de-energizing circuits to ohm them out. Haha all the time I’ve wasted! Love it! Subbed my man.

Thank you for walking us through how you go about starting off your troubleshooting and diagnosis of the system much appreciated and nice troubleshooting

First thing I teach rookies is E..R..A..Electric, Refrigeration, Airflow. Contactors are a once a year item to change on PM. It's always good practice on single units to prevent calls. Good stuff..thanks for sharing.

Love the step by step spelled on screen. Really helped a junior tech like me. Great video

Very concise walk through appreciate the effort.

I just started doing refrigeration in Las Vegas and I gotta say this video was very helpful. Thanks and keep them coming.

Clean & straight to the problem 👍

Like how u walk through everything u do thanks

May I really do appreciate ur videos , motivational.

Thanks for sharing. Tony from Houston

Thank you for taking the time 🎥

Good tips for troubleshooting ..thanks

Thanks for the diagnosis tips you're awesome bro God bless you

Looks like an easy fix on a cruddy day. Always hated working in the rain. Even when it's warm it still just makes everything seem like it sucks. When it's cold it's downright miserable.

Always enjoying your videos man.

You know what they say bro.....if it ain't rainin, we ain't trainin. Lol. Good shit bro 🤘🤘

Awesome. Learned something new about the contacters.

Nice work man. As a new tech in the trade I love watching these videos! Thanks for the information.

Love your videos bro. You have a good approach with the troubleshooting

Good vid Rook ! The only thing i DISAGREE WITH IS INITIAL SMACKING OF TEMPERATURE CONTROL upon arrival. i Prefer to gently take off temperature control cover and check for a open with a Meter. ( That way u can " Catch " the Bad Temperature control in action if it is so. i Prefer to Try to Get Rid of Some of My " Old timer Bad Habits " & Be a Tech that Tests Rather than Guesses anymore. I Learned smacking controls from the Old timers ( a Bad Habit in my opinion now ). u Can smack it all u want After u have diagnosed it failed. Other than that Good vid. Totally agree with When buying Often used parts ALLWAYS Buy 2. one for job , one for Truck stock.

Another great video, thanks

Thank you for the knowledge, success for "Rookie ......" ... Pekalongan, Central Java, Indonesia attended

Awesome work 😉

Thank you for the informative videos

I happened to be on the market for some new boots. I will be checking out a pair of those tomorrow. Thanks for mentioning those and another great video!

Very informative sir..thank you

Love my Keen's too!!

Thank you for sharing. Good video

Hi hello sir I'm bert from Philippines nice to see you in trouble shooting in walk in freezer

great stuff. you're a real pro

Great video thanks.

Wish all my hot calls were easy like yours today. Ill go on top as long as its not hail, lighting, or tornados 😃. From the guy in the middle lane on your way home yesterday.

Great video

Nice video 🙌🙌🙌

We thank you!!

Good video brotha

Thanks in a million.

You can also tell it's a low temp by the vapor injection.

Great video👍

Good video👍

Been wearing Keens for 3 years they are great.

Wish I could do HVAC lucky you man.

Nice work on your call Keen shoes last long as well. Harder souls don't wear too quickly

Nice job with was a little easy

Nice video ty

Check the accuracy of your pressure switches cut in and out heatcraft is the Goodman of refrigeration

good job

more videos like this please

OMG. My Keens changed my life.

Voltage drop on contactors is a good maintenance procedure. Thanks

Thanks on your process of troubleshooting great content 👍💯 And whats the brand of the boots agin, im acually seeking for new boots cant decided lol

I love my keens they are great hiking shoes. But the lugs on the bottom of the shoe are made for rocky muddy. Terrain... Not flat rooftops i learned the hard way as i slipped not once but 3 times on a wet rooftop while the other guys walked just fine... They had flat bottoms on their shoes.

Rocking the DL 429 nice

💪🏽as always

Good video . Noticed fans were running when the box was still around 55 degrees. I assume the Klixon DFT , FDS , was bypassed to bring the fans on even if the evaporator coil wasn’t cold 🥶 enough. But I’ve found lots of units that way , working with no problems. 😃

What kind of boots were those? And keep up the good work

I use to work at target as the maintenance guy, when filter replacment hit i hated those roofs. When wet its slippery as heck.

what was the you were holding to check super heat? an app on your phone?

What supply house do you use ??

Hope all is well rook ,haven't seen you drop nothing in a while ,hope u good bro

Do I need heat trace on my walk in drain? It’s only about 1’ of piping before it goes outside. It has 3/4” insulation on it now.

Pretty big Van my guy lol

You didn't check terminal to ground for tstat. What if no power coming to the thermostat u still would have gotten zero across the 2 terminals

Old man..👀 here...lol..( grunting alot more than you.), haha Great diagnosis.. Basically,i have same technique,check basic things first.. Contactor was a dead give away. Good call..thx for the video bro. You jamming with the keens...North texas jamming. Lol😀.. your south texas contractor.bro. Bryan Tyler Refrigeration Blessing brother. 🙏🙏🙏☝☝☝

Wait, did you open up that contactor without turning off at the disconnect? I've been shocked too many times in my life to try that, lol

Bought the same keens. Warrantied them at two weeks. Second pair lasted three months. Very comfortable, but they don’t hold up to our line of work.

Someone else that puts screws in the panels. I had a hvac heating call last month. Store was cold because the blower door was laying on the roof. /sigh

Do you have a preference on contactor manufacturers. the only reason I ask is copland contactors are crazy expensive here. Thanks for the video .

Rookie you need to get you a sponsor.

#110 thumbs up

I notice you always use your on thermometer, no trust for the box thermometer thats smart.

Also just bought new boots also some Georgia's their great

👍👍👍

🔥🔥🔥🔥👍🏿

Man I could have used a call like that been running across a lot of frozen up cases here lately, bad heaters clogged drains dead fan motors yay

How you like your DL429 meter I've got anniversary addition I like it so far.

What is your ideal SH at the evap? Great video- Thx

The worst work boots for cold weather is docmarten's. Very very slippery

What is the name of your safety boots

How much you charge for that ,, just a idea

How you set up your testo with the MQ app, I’m struggling connecting my 550s with the app 😪

Voltage Drop Test across contracts will tell you if contractor is on its way out. Years ago the contact pucks used to be substantial silver and one could file them flat. Now-a-days they are merely silver alloy filled and not worth messing with. Well actually I should not say that; many industrial contractors have replaceable contacts.

👍🏽

Is that evap coil hanging in the center of that box

sometimes you may find a bug in one of the contactor lines.

How the heck did a three phase compressor survive from a leg loss?

Don't usually low temp compressors have liquid injection?

classic case of poor o PM leads to a unit down and now comprised compressor. you could see that contact was smoked soon as you opened service panel 😂

Why were those fans running, it should've been off due to the fan cycle switch

No lighting I go. I live in Florida.

Why when it was good where you reading 0 when reading up and down. Thank you

Those shoes are great but I stopped wearing them.if u step on shit u never get it out

I had a similar problem today in a walk in freezer smh

Uei vs fieldpiece??

Never knew Copeland makes contactor

Thats a big van lol

Defrost terminator no good?

better ran then snow!