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Working with a York ductless with 4 heads. Trying to find out what the factory (unadjustable) setpoints are for AUTO mode. Any insight is much appreciated.

Thanks

Pitch it forward?

That may just be a nice quick easy short term remedy until the new ice machine shows up.

All bars look fine. No cracking. No cube separators are loose. All plastic components look good. No obvious calcium build up. It’s maintained and cleaned a regular basis. It honestly looks...

I am working on a Manitowoc Ice Machine. Model SD1802E Serial 110162451

Its from 2010, and it's having issues dropping its ice. I have checked the operation of the Harvest valves,...

Just wondering if there is a reason why I am seeing a drastically lower set point for factory-installed Head Master valves on new 448/449 condensing units.
The latest one specifically is a low temp...

Looking at a Carrier Infinity Heat Pump installation (approximately 10 years old), with a wood-burner as a source of auxiliary heat in the supply air. System utilizes the 4-wire communicating tstat...

Thanks for the insight on this one! Much appreciated.

Thank you for the clarification. So basically a new board then?

I can’t seem to find any clarity as to what this “internal control fault” is all about. Carrier MN: 48tcea05a2a3a

Flash code 8 on the diagnostic LED.

Getting 26 VAC on the controls. No...

I have recently been tasked with working on a commercial geothermal system that serves hydronic heating as well as domestic hot water for a resort on the pacific coast. There is a COMPLETE lack of...

Hi there.

Has anyone had any experience putting a data logger on a residential Heat Pump system with electric back up heat? I am trying to monitor exactly when, and for how long, the heat pump is...

Goodman
Model: GPH1324M41CA
Serial: 1312016909
Anyone know how and where to find manuals for this RTU?

are you still having issues with the oil failure? have you drained the oil yet, and checked the inlet screen? If the oil hasn't been changed in a while, and the screen hasn't been cleaned, it might...

turns out it was super-basic. The economizer minimum position was improperly set at 100% open. The economizer is directly in line with circuit 2 indoor coil. So when it's 40deg's outside, and...

Foam = refrigerant boiling out of the oil, sometimes a result of pumping down. Doesn't specifically mean that there is liquid refrigerant coming back to the compressor. For example if you are...

Crank case pressure is a fancy way of saying "suction pressure measured at the compressor". Simply attatch your suction hose to the guage port on the suction service valve of the compressor and,...

It sounds like a quiet shift thing. Patience before panic.

Inducer fan blades in most Carriers are just a plastic molded unit. Sometimes they come out of the mold and small seam that doesn't get filed or sanded down can create a bad vibration. I've had a...

R410A. OD temp 40, Indoor temp 71.
Circuit 1 operating pressures 381/99; Discharge temp 161.3F; Discharge temp out of rev. valve 156.1; suction temp into rev. valve 40.3; suction temp out of rev....

The board doesn't delay the shifting of the reversing valve, it just turns off the compressor for 30 seconds and to allow the pressures to equalize a bit, so the compressor doesn't "growl" too much...

Getting away from any bickering back and forth about blanket statements and code issues, and getting back to the original question: I have noticed on carrier residential furnaces that the vent...

It sounds like unit B is working as expected if it's warm indoors. You should notice the frosting after the liquid line service valve due to the metering device (piston). I'd be worried if there...

Quite often it's as simple as a few pieces of ice not falling and thus getting jammed up in the evap and then it doesn't take long until the entire thing is a block of ice and it looks horrible, and...

Carrier Heat Pump m/n: 25HCB348A300, s/n: 4511E14948
Ever since installation (2.5 years ago), upon initiation and termination of defrost, the immediate rush of refrigerant accross the reversing...

In the restricted driers that I've dealt with, the temp drop is VERY noticeable, and the appropriate actions are VERY obvious.

It's the ONLY tool bag that I'll ever use. I'm on my fourth one now. I will say that the main zippers are an issue, however; the warranty procedure is second-to-none and very tech-friendly (ZERO...

Thanks HAVCAPPRENTICE. Is your instructor Canadian? How did he get the job (agency, or just went there and applied around)? Thanks.

Does anyone know how easy or difficult it is to find work in Hawaii? Especially for a Canadian? Appreciate any advice you have.

why would an undercharged system cause the evaporator coil to freeze over?