Do it yourself Refrigeration and Air Conditioning

[Sigarms]

I asked the tech if there is a low/high pressure compressor kill switch like i have in my truck, but he didnt know.

Generally, you will find at least one pressure switch (my experience low pressure) and a lot of them have both low and high pressure switches.

I'm not certain why your HVAC guy didn't know, if you have them, you'll find them in the outdoor unit.

 

[thepumpguysc]

Lightening got my frig on Monday.. no problem it’s happened before.. order a new control board and that “should” fix it, just like last time..
NOPE.. the repair man is here now..

 

[ponytug]

Lightening got my frig on Monday.. no problem it’s happened before.. order a new control board and that “should” fix it, just like last time..
NOPE.. the repair man is here now..

Yikes! As it has happened before, have you thought about a whole house surge suppressor?

All the best,

Peter

 

[thepumpguysc]

Bought one when I ordered the control board..
Thanks..

 

[ponytug]

Bought one when I ordered the control board..
Thanks..

I hope it helps going forward.

All the best, Peter

 

[ultrarunner]

Lost TV twice at moms to utility power surge…

I had it on a good UPS but the beeping when power was out of spec bothered her… so I took it away.

 

[RayIN]

Buying refrigerant in bulk( 20# cylinders or more) will not be cost effective for a private individual.
IMO it will be much cheaper to pay a full-time HVAC technician. If you ever service someone else's unit without a business license and commercial insurance, you might be sawing off the limb you're on.

 

[ultrarunner]

Buying refrigerant in bulk( 20# cylinders or more) will not be cost effective for a private individual.
IMO it will be much cheaper to pay a full-time HVAC technician. If you ever service someone else's unit without a business license and commercial insurance, you might be sawing off the limb you're on.

I bought a jug of R22 years ago for the one place I own with central A/C… my HVAC retired friend passed away and his sons were having an estate sale and they had it still in the box…

 

[RayIN]

I bought a jug of R22 years ago for the one place I own with central A/C… my HVAC retired friend passed away and his sons were having an estate sale and they had it still in the box…

That has appreciated in value to several times the purchase price today.

 

[ultrarunner]

With my luck I will hold onto it so long demand evaporates.

I understand 410a is getting pricey…

The new built up unit takes many jugs to charge both circuits..

A nearby study found 8 of 61 Schrader valves leaking…

I felt bad for the contractor having to replace all the lost refrigerant plus paying for the supply house to open on a weekend…

Yesterday a bad contactor blew two of three 125 volt 480 volt fuses that again required supply house to open after hours and no 125 amp only 100 on shelf so using the 100 in place of 125 until tomorrow.

The failure also tripped the 125 amp breaker in the panel room…

I don’t see the need for both 125 amp fuses at the service disconnect on a 125 amp circuit breaker protected dedicated circuit…

What am I missing because I’m thinking just making the Service Disconnect fuseless.