The tool started giving me a E12 Error Code. It has a clean sensor has been calibrated in the last 7 Months and new filter. Is it a sensor ? Anybody else have this issue there is remarkably little information online regarding the trouble shooting of testos CA lineup.

When yall look to make a change, where are your go to places to start? Indeed is fairly stagnant here in my area and sometimes it's nice to just see what is out there.

Hello everyone, im seeking some advice on if im able to get a pay raise, i have one year in residential install and i feel i know a fair bit of the technical side of this trade, im definitely not close to being lead at all but im making my way in this trade at my own pace and its been great, i make 20 n hour which has stayed the same since i started, i know how to troubleshoot some issues i face when installing new furnaces and ac and heat pumps, im not a perfect person but i can get the job done. Lemme know if it’s okay to ask for a raise.

Didn't realize my TXV was made in Canada!

I often work in deep rural areas with very dirty power supplies. I routinely clock voltage to condensers anywhere from 225vac up to 258vac with voltage fluctuations of +/-8v day to day on single units. Working on a Bryant Evolution that was experiencing intermittent drop out of the OFM (fault 66), I got on the phone with tech support who advised the maximum voltage for these units is 253volts, and anything in that range or above faults the inverter board, presumably to protect the motor and other components. Power cycling the unit restores normal operation until the next power surge. The residence in question reads between 248v and 250v during peak hours. I surmise in the evenings when usage in the neighborhood drops, voltage spikes by the 3-5v needed to fault the inverter. What are the best brands/devices you guys would recommend for regulating this voltage to a steady 230? As a note, the homeowners only live at the residence half the year, so a durable, set and forget option is preferred.

From my understanding, surge happens when the refrigerant pressure difference between the evaporator and condenser get too high (high lift). On one site we are working on, the maintenance manager is saying he sees one of his chillers surge when the condenser water temperatures are too low. I've seen people say the same online ("Low tower entering condenser water temperature can surging too") and I am trying to understand how that would cause surging to help prevent it in the future. Thanks for the help!

I’m new to hvac (8 months) I graduated in prison we did all book work no hands on so I’m kind of learning an entirely different side of hvac. Doing a maintenance on a home and I’m wondering how they get their heat. I’m sure this unit uses electric heating and I tried to find it on YouTube but no luck. Can anyone confirm? Also. Any tips on doing maintenance on a furnace I’d appreciat.

Tired of complaints. Here's some good shit. I LOVE the fall in the Mid-Atlantic. Even with the drought the leaves are pretty, it's cool enough I'm not sweating my nuts off the whole day, and basic gas furnaces and rooftops pretty easy to work on. Good shit. Hope y'all have a safe day and make that money!

Sanhua coils gives me a headache!

Going towards the end of year and I have an employee review coming up, I will be asking for a raise. I myself am an apprentice but have taken under my wing, my own teams (2) apprentices. I’ve got about 7-8 years under my belt and I’ve never specifically asked for a raise. I started as an installer then eventually moved to what I am now, a 3rd year apprentice in a heavy commercial team. This includes running my own jobs, in the scheduled on-call, directly contacting customers etc. my question is how do I go about actually asking for a raise. Any tips? Thanks in advanced.

For reference, right now I’m getting paid $5 more than the newest apprentice that doesn’t know what a flathead from a Philips is.

I did pretty this up after the picture, bit forgot to take the after photo. That being said, there wasn't much to be done about the feeder tubes other than making sure they weren't gonna rub when the unit runs 😅

Does anyone here have experience with this thermostat made for the ceiling cassette mini split head? I am running into an issue where the thermostat won't connect to the module that plugs into the board on the cassette itself. Unit is getting 240v at outdoor, at the communication wire at the terminal block and going to the board. The thermostat says "connecting" and goes from 30, 29, 28 and says "cannot connect". It says there should be a green light on the module from the board, and too hold connect button, but I get nothing on it. I reset power a few times on both the thermostat and unit. Only one I have ever worked on/set up so I need some help here.

We just signed up with the Jobber CRM, and we are curious what other people are doing in this situation. Some of our builders who require our HVAC services send out POs months before they send us a date for the services. Are you building out the client into the Jobber CRM right away and attaching the PO keeping them as an open client? Or are you saving the PO to a drive and then only building them into the Jobber CRM after they send the date request for services?

I’m kind of tired of working on so many different types of equipment. Of all the fresh air systems Aaon is my favorite. I find them easy to work on and simple do diagnose.

Kitchen staff saw how dirty the prep table was when we fixed it. So commercial degreaser? Now it needs another board. Do I need to explain washing live electric equipment is bad, or just order another margarita?

We are a residential/light commercial HVAC shop. Furnaces and AC/heat pumps. My office wanted to send me to a gas fireplace service call and a gas fireplace maintenance call. I reminded our office lady we don't work on those. She still wants to send me. I tell her I've only ever worked on my own had for place and that I haven't even gotten it to work consistently. As I write this it's not working at all actually. I object multiple times and she still sends me.

I get to the customers house and spend 30 min looking at the manual and fiddling with it just to get the glass off it. 15 min of troubleshooting and my multimeter is picking up more millivolts from the damn air than the gas fireplace is supposed to produce so I can't test it properly. I can't clean the thermocouple properly since my bushes are too big to for between it and the pilot because I only ever use them on flame sensor and I can pull those out. I tell the customer up front and at the end of this call. Idk what I'm doing. I cancel the call and go the customers friends house who was the maintenance and let her know idk what I'm doing and I'm not going to even attempt the maintenance.

I felt like an ass and an idiot because my office sent me out there. I'm not saying fireplaces are complicated. I am saying I don't fucking work on them so why would you send me out to do so. And charge more than the fireplace service guys in the area. I feel like a waiter at a restaurant that serves shity food. Always taking crap for things that are the offices fault.

Found while doing maintenance on a furnace for a new customer. Traced it back to the breaker panel lol.

Boss ordered new circulators but didn't order any gaskets for the check valves. New circulator housings were 1/16" taller. 5.5 HRS later.