City multi - strange code

**richardb14** · 13-07-2011, 08:16 PM

Just had a client phone me from site, they have 3x units fitted to one suite, it runs for ten mins and all controls throw up the same code: 0771302

does this mean 1302 high pressure fault?

we've just taken the site on and in the last three months we've had a few small issues

**richardb14** · 13-07-2011, 08:27 PM

its ok, problem sorted - well at least I know where to start, its a head pressure fault

**stufus** · 13-07-2011, 08:32 PM

077 is the unit address.
The detecting units address is always displayed with the fault code.
Cheers
Stu

**richardb14** · 13-07-2011, 08:41 PM

thanks mate, much appreciated.

**stufus** · 13-07-2011, 08:53 PM

No worries.
This is an old one but most of the codes are the same.
http://www.ksservices.com/PDFs/Mitsu...20Handbook.pdf
Cheers
Stu

**richardb14** · 13-07-2011, 09:32 PM

cheers for the link mate, that will come in handy!

**richardb14** · 13-07-2011, 10:00 PM

turns out they lost a phase, its running now but one of the controllers in the suite is showing 'HO'. according to the manual you gave me the link for I think the system is trying to do an automatic address

**JoeAT50A** · 14-07-2011, 02:38 AM

You are right system is trying to search registered addresses.
HO stand for Hold (wait a second), if not wait a minute, if not wait a 3 minutes, if not wait an hour.
Still showing HO after 3 or 5 minutes passed, then you need to re-registered. Most of the case should be OK after 2 to 3 minutes.

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