city multi fault code 1507

[andyac]

hi all anyone know this code for a R22 PURY-250YMF-B tia

[martinw58]

do you mean 5107 Outside air (TH7) temperature sensor failure (outdoor unit)

[stufus]

do you mean 5107 Outside air (TH7) temperature sensor failure (outdoor unit)

As Martin said 5107 is probably the one.
I have no recollection of a 1507 fault code for any Citi Multi machinery.
I think there is a 1607 ,which if memory serves me correctly is very rare and is a configuration issue.

Cheers

Stu

[Gingerair]

There's no 1507 listed in the service manual i've got....
Any takers on 1501 ???

[martinw58]

1507 fault code from mitsi tec site

Ref.cycle not operate due to composition detection abnormality

[stufus]

1507 fault code from mitsi tec site

Ref.cycle not operate due to composition detection abnormality

Does it say composition of what?


1501 SOLD!!!!! undercharged
1500 overcharged
1505 suction pressure abnormal

We could go on probably best to see what the OP says

Cheers

Stu

[Gingerair]

Does that not relate to a 407c unit??

Where's Thermatech when we need him !!
....or even as Stu say's, the OP...

Ginge

[stufus]

Just a thought check SW3 - 8 on the outdoor board it's the refrigerant selection switch.
On an R22 model it should be OFF
I wonder is the unit looking for something that's not there.
Has somebody changed a board recently??

Cheers

Stu

[Thermatech]

I cant help on this one

YMF-B was R22

During the next generation of City Multi YMF-C they changed over to R407c so early models were R22 & later models were R407c.

I dont have any notes in my YMF-B or YMF-C manuals about any 1507 fault.

[martinw58]

composition? i think this might relate to r407c pos lost part of charge and gas out of balance

[andyac]

5107 cheers for all your help

[stufus]

Glad you got it sorted mate
That's a gold star for Martin58
Cheers
Stu