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Good luck on your surgery. That sucks man.

Where do I find that?

Ok guys, I’ve been working with a global manufacturer in Northern MINNESOTA who is developing a refrigeration system for heavy industry. They have a great engineering team and I’ve been consulting...

I used to be an Ice-O-Matic fan, but not anymore since they went all electronic. Kool-Aire by Manitowoc has been good. They are Manitowoc machines without all the bells and whistles.

In our region, Northern MN, we lock out heat pumps at 25-30 degrees. Then the furnace takes over.

Not sure about Carrier brand, but Mitsubishi mini-splits will bleed through a small amount of refrigerant in heads that are not calling for heat when another head is calling for heat. It sound like...

Is it possible that running at such a high pressure (rich) plugged up the heat exchangers?

If it were me, I’d start taking panels off until I could visualize the limit. Then I’d take the screw(s) off the limit and replace it. Then I’d figure out why the limit was tripping and fix that...

Is this a new install? If so, I’d be on the horn with my distributor and have a new unit shipped. Leaking out of the box, Mitsubishi can find their own leak.

I agree. Look at the last picture. The horizontal run has a piece of pipe with no crimp. It slides on the outside of both adjoining pipes.
In our area, we can run single wall pipe inside, but must...

I use a 100’ hose that fits in a 1-½ gallon bucket. It’s one of those expanding hoses that shrivels up when there is no pressure. Think it came from Walmart. I usually need to buy a new one every...

Why start this thread 10 minutes after starting your last one on the same exact topic?

“Piston kit charge”???

Very nice and clean. You should be proud! Those KE2 Evap Efficiency controllers are awesome.

“ We need to get you a better flashlight ....”

Hah! :cheers:

By the way, it ran perfectly when I finally finished.

Got called on a 6’ Federal open deli case not cooling. A little history... About 2 months ago, this unit got a new compressor and condenser fan motor. At that time, I also blew out the condenser coil...

If you had this installed 6 months ago, why aren’t you calling the installing contractor for a warranty repair? We give a 1 year warranty on all of our installs.

KE2Therm is top-notch. I accidentally smoked a controller by my own stupid mistake. Of course it was on a weekend and late at night. Thought I’d give a “Hail Mary” call to KE2Therm, and guess...

Nice work on the HVAC and really nice work on the electrical. I like both high and low outlets.

Two things I’ve never heard:
“I wish this garage wasn’t so big”.
“I wish I didn’t have so many...

I burn Nests. Hornets nests, wasp nests, bee nests, Google Nests.

We charge time and a half for rooftop calls when it’s below zero F.

I just installed Ring floodlight cams. They are great. You can adjust the motion detection zones, and even set them to detect humans only. One plus is they also record video.

Welcome. As you probably know, there is a TON of knowledge here. One of the best tools in my bag is hvac-talk

We have had a truly record breaking year and I feel totally blessed. Last week I decided that if I was working for a restaurant or bar that is shuttered due to the ignorance of our idiot governor, I...

Same here. I usually have to look at them to see if they are running. They are so quiet that I need to see the fan turning.

Can’t help with the message you got on your phone, but I can help with the bedroom overheating.

First, your tech needs to make sure your branch box is not cross wired/piped.
If all the piping and...

MINNESOTA/Canadian border here. Discovered a game changer about 3 years ago for cold rooftops. I was working on a walk in freezer unit on the roof of a casino with their maintenance guy. He asked me...

I cut off EVERY factory flare. Experience. Don’t trust them as far as I can spit.

My question to all of you -- what is the downside of keeping the outdoor temperature sensor indoors while running the system in auto mode via the Econet tstat? I am trying to anticipate the...

I’ll try not to make this too long. According to my mother, when I was a toddler, she came into my room to find my crib/bed disassembled and I had the fasteners layer out on the floor from longest to...

The only problem I see with mounting them that close is difficulty in annual coil cleaning.

I agree. Maybe try an experiment. When it’s below 40, turn on every head and set the temps at least 5 degrees above room temp. Listen and see if you still have the noise.

Right now, where I am,...

The RV units are no more than 80lbs. They are made to take the bumps and potholes. Cut a 12” hole in the roof, bolt it down, plug it into your inverter, done.

So the gas valve is not accessible from the top?

I’ve got an Empire floor furnace (millivolt) running in my cabin 10’ from me right now. It has a 2’-3’ rod that goes down to the gas valve below....

What about a roof mount RV unit?

I do mostly commercial and industrial refrigeration and about 80% of my work involves electrical or dirt. I would highly recommend getting as much training as possible in the electrical trade and in...

My JB 7CFM pump still pulls down to 50 microns at 18 years old. I do almost all commercial and industrial refrigeration. If it ever craps out, I’m getting another one.

My van always has two cans of brake cleaner from the auto parts store. Best degreaser ever.

It’s almost always less expensive and less labor to install the evaporator at the same time as the furnace. Then, in the Spring, all that needs to be done is set the outdoor unit and run the lines.

I have something good to say about Nest...

They have a good marketing campaign.

Those amps seem really high, but otherwise everything seems pretty normal for a mechanically seized compressor. Perhaps your meter is on the wrong scale, or leads are plugged into the wrong holes?

First, in your picture, that is not a thermocouple wire. The thermocouple is coming off the right side of that valve.

Second, you have a dangerous situation that needs to be repaired ASAP. If...

31 years in the trade and never recall receiving a bad compressor from Copeland or Tecumseh. I was doing a repair on a swimming pool dehumidifier and part of the repair was replacing a CR47KQ-PFV,...

Wonderful. I got a new drive module today, and instead of being on steroids, this one doesn’t spin at all. �� Ordered another one from United Refrigeration via next day air! What a stupid run of bad...

My point is, before you go looking at ordering parts, make sure that you need that part. You need to diagnose the problem before you replace parts.

You don’t need every wire! You don’t even know if you need the flame sensor wire. It’s time to stop throwing parts at this furnace and actually diagnose the problem. If the problem turns out to be...

I’ve installed hundreds of Mitsubishi systems, FH, GL, etc., and have never had a noise problem. On the contrary, they are so quiet that the only way to know if they are running is to look at the fan...

I agree about unplugging the flame sensor. If the problem goes away, you’ve got a bad wire or a bad sensor

That, I don’t know. The part numbers of the drive modules are exactly the same.