Tadiran Fault Code #7

[madfriday]

Hi all, I have been asked to check out a cassette air-con unit for a tanning centre. It is a Tadiran AC unit. the system will run for about 10 minutes and then shuts its self down. Where the display normally shows the room temp the read out jumps to showing the figure 7
I figure that this is a fault code.... but don't know what for?
I have checked Tadiran's website and their codes only go from 1 to 6 - hmmmm !
I have made the usual checks, filters are clean, plenty of gas, all fans are going.
Wondered if anyone could put me out of my misery with it ?

[cool#9]

Hi Madfriday.
I need the indoor unit model and also the version of the main pcb ( TAC 444 or 600, maybe ?.. ).
I've made a few after sale service for this trade a long time ago...i maybe have some information.
rgds
cool#9

[madfriday]

Thanks Cool #9
I will see if can get this info off the unit and get back to you.

[madfriday]

I have a picture of the controller now if any help.
Says it is a RTX room controller
Will add Pcb no as soon as available...

[madfriday]

I thought i would post these up because they seam pretty rare and might be of help to someone....

Fault codes for the early small Tadiran cassette with the 'RTX' room controller;

1...Fault at thermister 1 (return air sensor)
2...Fault at thermister 2 (coil sensor)
3...Low gas Pressure
4...High gas Pressure
5...Low voltage malfunction
6...High voltage malfunction
7...High line voltage

[chemi-cool]

Tadiran are Made here.
Its the first time that I hear about more then 6 fault codes.

[madfriday]

I assume it was a fault code....
Thing ran for ten minutes -then all shut down and just read -7- on the display ?! Switch off and on again and fine for another 10 mins, then off again, and readin 7 again....?
Found a dusty owners manual on shelf - refers to seven codes sure enough.
Check out attachment.

[bbrown0921]

I assume it was a fault code....
Thing ran for ten minutes -then all shut down and just read -7- on the display ?! Switch off and on again and fine for another 10 mins, then off again, and readin 7 again....?
Found a dusty owners manual on shelf - refers to seven codes sure enough.
Check out attachment.

I have a similar problem with a GLF-S2030C. Any advice?

[sedou]

we have a problem with Tadiran AVL-603H
when appears fault code 6 on display it also disconnects electrical switches

i can't imagine why?