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25
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3.1 Table of fault code
Notes:
(1). Not necessary to turn off the unit to clear the fault codes which can auto-resume.
the fault code disappears after resume.
(2). Fault codes requiring manual resume needs turning off the unit to clear.
(3). Fault codes with auto/manual resume can auto-resume when it is not locked; It
needs to be manually resumed when locked because of frequent occurring.
(4). Fault resume requiring password, needs the correct password and effective
setting in order to clear.
(5). Faults requiring power-off resume condition can be clear by re-energise to the
mainboard.
C od e
Fa ult c onten t
D ispo se fau lt
R e su m e C on ditio n
00
H e at in g/ c oo ling ret ur n te m p era tu re s e ns o r
fa u lt
U nit s t an d by
Au to r es u m e
01
H e at in g/ c oo ling flow te m pe ra tu re s e ns o r
fa u lt
U nit s t an d by
Au to r es u m e
02
G ro un d w at er /b rin e in le t te m p er at ure
s en s or f au lt
U nit s t an d by
Au to r es u m e
03
G ro un d w at er /b rin e o ut le t te m pe ra tu re
s en s or f au lt
U nit s t an d by
Au to r es u m e
04
D H W te m p er at ure se n so r fa u lt
U nit s t an d by
Au to r es u m e
05
-- ---
--- --
-- ---
06
H e at e xc h an g er 1 g a s te m p era tu re s e ns o r
fa u lt
U nins ta ll m a in c o nt ro l bo ar d
c o m p res s o r s y s te m 1
Au to r es u m e
07
H e at e xc h an g er 2 g a s te m p era tu re s e ns o r
fa u lt
U nins ta ll m a in c o nt ro l bo ar d
c o m p res s o r s y s te m 2
Au to -re s u m e
08
H ig h p re s su re p ro te c tio n 1
U nins ta ll m a in c o nt ro l bo ar d
c o m p res s o r s y s te m 1
Au to /m a n ua l re su m e
09
Lo w p re s s ure pro te c tion 2
U nins ta ll m a in c o nt ro l bo ar d
c o m p res s o r s y s te m 2
Au to /m a n ua l re su m e
0A
H ig h p re s su re p ro te c tio n 1
U nins ta ll m a in c o nt ro l bo ar d
c o m p res s o r s y s te m 1
Au to /m a n ua l re su m e
0B
Lo w p re s s ure pro te c tion 2
U nins ta ll m a in c o nt ro l bo ar d
c o m p res s o r s y s te m 2
Au to /m a n ua l re su m e
0C
-- ---
--- --
-- ---
0D
-- ---
--- --
-- ---
0E
H e at e xc h an g er 1 f re ez in g p ro te ct io n
U nins ta ll m a in c o nt ro l bo ar d
c o m p res s o r s y s te m 1
Au to -re s u m e
0F
H e at e xc h an g er 2 f re ez in g p ro te ct io n
U nins ta ll m a in c o nt ro l bo ar d
c o m p res s o r s y s te m 2
Au to -re s u m e
10
c om p re s so r ov e r loa d in g pr ot ec t io n
U nins ta ll m a in c o nt ro l bo ar d
c o m p res s o r s y s te m 1 , 2
Au to /m a n ua l re su m e
11
G ro un d w at er /b rin e f lo w s h ort p ro te c tio n
U nit s t an d by
Po w e r o ff
12
To o b ig t em p e ra tu re s pa n b et w ee n
H e at in g/ c oo ling flow an d re tu rn
U nit s t an d by
Au to -re s u m e
13
-- ---
--- --
-- ---
14
H e at in g/ c oo ling flow sh o rt pr ot ec tion
U nit s t an d by
Po w e r o ff
15
To o h ig h te m p er at ur e pro te c t of
he a tin g /c o olin g f lo w
U nit s t an d by
Au to -re s u m e
16
To o lo w te m pe ra tu re p ro te ct o f
he a tin g /c o olin g f lo w
U nit s t an d by
Au to -re s u m e
17
An ti-fr os t pr ot ec t o f he a tin g /c o olin g flow
U nit s t an d by
Au to -re s u m e
C 0
-- ---
--- --
-- ---
C 1
-- ---
--- --
-- ---
C 2
D H W ta n k w a te r s u pp ly f a ult
S ta nd b y or n o en te r to D H W f u nc tion Po w e r o ff
C 3
-- ---
--- --
-- ---
C 4
-- ---
--- --
-- ---
C 5
As s is ta n t e le c tric ity h e at in g o ve r lo ad in g
U nins ta ll a s s is ta nt e le c tricity h e at in g
Au to /m a n ua l re su m e
C 6
Po w er p ro te ct io n
U nit s t an d by
Au to -re s u m e
C 7
Pa s sw o rd loc k (a llow e d ru n ning f in is h ed )
U nit t ur ne d o ff
m a nu a lly inp u t p a s sw o rd
to r es u m e
C F
C o m m un ic a tion f au lt b e tw e en lin e
c on tro lle r a nd m ain co n tro l bo a rd
U nit s t an d by
Au to -re s u m e
INSTALLATION & INSTRUCTION
MANUAL