KFIS29PBMS01 both FC and RC don't reach set temperature

[max999]

Do You mean you mean reclaim some refrigerate ? Not yet , should I ? 

[max999]

Sorry, I missed understood, I did charge with dial-a-charge cylinder, not pressure. 

[Vance R]

28 minutes ago, max999 said:

Sorry, I missed understood, I did charge with dial-a-charge cylinder, not pressure.

The old fashion way to do measured a charge. If it  has a heater it will charge a system quickly.

[max999]

Yes , I did use the heater. So how do I correct so the pressure is just , reclaim some refrigerate, right? . How do I accurately do that? 

[max999]

1 hour ago, Vance R said:

The old fashion way to do measured a charge. If it  has a heater it will charge a system quickly.

Btw, one more data point , it look like defrost is occurring every 8 hours I think and when it does the compressor is off and the pressure equalizes fast at 28psi , is this normal pressure to equalizes at? 

[Vance R]

14 minutes ago, max999 said:

the pressure equalizes fast at 28psi , is this normal pressure to equalizes at? 

If the average temp of the system is 32 to 33 deg f then 28 psi would be good.  Never really measured a lot of equalized pressures, but thinking in the 40 psi range would make me feel more comfortable.

[max999]

Yes, the average temp was at 32F when it equalized at 28psi , so we good then, right? 

[Vance R]

5 minutes ago, max999 said:

, so we good then, right? 

yup

[max999]

Great, wow  we all good, so no need to correct anything for now. Again thanks for everything, I will update you if anything change. 

[max999]

One last thing, this whole process quite an adventure and i felt like I was under the watchful eye of a master. I learned a lot from you and I appreciate all your help.  Thanks 

[max999]

Question , when the freezer is in defrost mode, the temperature in the freezer will rise as much as 30F and once it stops defrosting the compressor start again it should take about an hour or longer to reach freezer set temperature, right? 

What will be the symptoms of slightly overcharged fridge , and is it bad for the compressor? 
 

[David C]

If it’s full off frozen food, I doubt you will reach 30 degrees in compartment

[max999]

well it is empty since I had issues with the freezer, so without any frozen items, for the freezer to keep temperature low , it will rise fast, correct. ? 

anyone has an idea of what the symptoms will be if the fridge was slightly overcharged ?  

[Vance R]

Frosting of the suction line.

[max999]

Hi, this morning I noticed little frost on the suction line just as it is come out of the freezer evaporator, maybe 4” or so , the fridge suction line has no frost as it is come out of the evaporator. It must be overcharged. The fridge temp is fine and the temperatures could be a little lower , it’s at 5F. Should the frosting stop as it exits the freezer evaporator? Should i put insulation  on the suction line as it comes out of the of the freezer ? 

[David C]

If you think it’s over charged recover, vacuum and weigh in proper amount. That is the correct way to do it. 

[max999]

Hi, the kitchenaid fridge both FC &RC were working fine and getting to temperature of -1F & 38F respectively until today , not sure why. 
the FC&RC seem to be stuck at 30F&42F , I can hear the compressor kick in and going to higher speeds often, maybe every hour or less. The condenser fan is running but the condenser is at room temperature, it should a little warmer then that, right?. Is it possible that the capillary has an obstruction and is why the condenser is at room temperature? 
Why will it occur a month or so later   ? Any suggestions, thanks 

max

[Vance R]

6 minutes ago, max999 said:

Why will it occur a month or so later   ? Any suggestions, thanks 

Most commonly would be a leak, then restriction.

 

[max999]

Wow, thanks for quick reply on thanksgiving. I just added 1/2oz after first I purged the air  from host and I noticed that the return from the evaporators is frosting up,  isn’t that a a sign of overcharged system? 

[max999]

After adding the 1/2oz 20min ago  I see that the FC temp is starting  to drop down a little it’s at 29F. Will you consider this a leak still , Even with the evap return to the compressor is frosting up a little ? 

[max999]

Here is one more thing,  the condenser is a little warmer now compare to before adding the 1/2oz 

[Vance R]

40 minutes ago, max999 said:

I just added 1/2oz after first I purged the air  from host and I noticed that the return from the evaporators is frosting up,  isn’t that a a sign of overcharged system? 

Very possible, let it run for awhile. What were the high and low side pressures before you added refrigerant?

 

[max999]

Sorry, I did not check. I will check if it does not reach temp 

[max999]

I just connected the gauges to the low/high ports and they currently read 9psi/200psi respectively. The current FC/RC temps are 15/37F. Here is Something I noticed that might be help-full. The narrow tube out of the compressor into the condenser is hot to touch and the other the side of the condenser, going to into the fridge (into heat exchange loop,right?)is at room temp, is that an indication obstruction in condenser? 

[Vance R]

1 hour ago, max999 said:

/200psi

There are non-condensables in the system, possible lowside leak.