A 419

[thunder]

Just got my johnson controls a419 plugged it in and plugged frig to it
set temp and nothing.do i need to set the jumper for cooling
or is it defaulted for that?

 

[Gremlyn]

I think it's defaulted for cooling. The unit has power to it, right?

 

[alexavery]

Yes - factory default is cooling

 

[thunder]

I think it's defaulted for cooling. The unit has power to it, right?

when connected frig has no power but display and all fuctions work?

 

[greeneyed]

*stupid question* Is fridge turned on?

 

[thunder]

*stupid question* Is fridge turned on?

Of course sanyo 4912 works great.

 

[greeneyed]

Is it colder than your set point?

 

[samc]

anti short cycle delay might have kicked in. check the setting and you then have to wait that amount of time for the fridge to kick back on. Mine is set to 12 minutes so once it cycles off its not coming back on for at least 12 minutes.

 

[thunder]

Is it colder than your set point?

no i am lagering a batch.trying to decrease temp one degree a day.

 

[Wade E]

Did you wire the jumper in between the normally on connectors for the control?

 

[thunder]

anti short cycle delay might have kicked in. check the setting and you then have to wait that amount of time for the fridge to kick back on. Mine is set to 12 minutes so once it cycles off its not coming back on for at least 12 minutes.

the controller locks? if locked would the power to the frig cut off?

 

[thunder]

Did you wire the jumper in between the normally on connectors for the control?

no i thought it was good to go out of the box?

 

[Wade E]

OK, mine wasnt wired at all, open the box and check to see if there is a wire running form no to no(normally open. if all else fails but it should be good to go.

 

[thunder]

OK, mine wasnt wired at all, open the box and check to see if there is a wire running form no to no(normally open. if all else fails but it should be good to go.

output c and no

 

[thunder]

jumper from no to 120?

 

[Wade E]

There are 5 ways to wire this unit depending on what you are using so make sure it was wired for your purpose and I believe the way you need it is no to load and C to 120v on upper as the jumper.

 

[thunder]

There are 5 ways to wire this unit depending on what you are using so make sure it was wired for your purpose and I believe the way you need it is no to load and C to 120v on upper as the jumper.

there is a black wire that is in c then connects to 120.Should i move it to no?

 

[lowlife]

Wiring Diagram

 

[thunder]

Wiring Diagram

thats the way mine is wired "factory power wiring" per manual sent with
unit.maybe the jumpers?

 

[greeneyed]

Here is the page for the jumpers.

 

[thunder]

Here is the page for the jumpers.

My jumpers are set to cooling mode,cut-in@set point
Is that correct?

 

[greeneyed]

So, basically you have both jumpers off? (just asking for clarification)

 

[thunder]

So, basically you have both jumpers off? (just asking for clarification)

NO see diagrahm they both are on the left leg only from factory.

 

[greeneyed]

If they are only on the left leg, they are "off", not jumping anything. Read Table 2, Jumper position- removed.

It sound like you have everything set correctly, and may have a defective unit.

 

[thunder]

If they are only on the left leg, they are "off", not jumping anything. Read Table 2, Jumper position- removed.

It sound like you have everything set correctly, and may have a defective unit.

I see the table where it says removed,If you look above that it shows both jumpers on left leg for cooling mode cut-in @ set point?
Should i just pull both completely off?

 

[greeneyed]

If it is on the left leg only, it is the same as pulling it off completely. The jumper works as a "piggy tail" connecting the two posts, and shorting across them. With it on one only, it is doing nothing.

 

[thunder]

If it is on the left leg only, it is the same as pulling it off completely. The jumper works as a "piggy tail" connecting the two posts, and shorting across them. With it on one only, it is doing nothing.

i will check the delay when i get home.As you said it may be a defective
unit.Thanks for your help and happy new year"cheers!

 

[greeneyed]

Also, the delay would be good to check. I know I put mine on a heater in ferm chamber the other day, and it took 6-7 minutes to come on.

 

[greeneyed]

Any luck??

 

[thunder]

Any luck??

well the power is on now.question when display reads 47 degrees and i want to lower it to 45 degrees(set point) .the compreesor cycles but temp does not stay @ set point it wanders back up to 47?