Daikin DZ16TC0361 Installation Instructions Manual page 16

TROUBLESHOOTING INFORMATION: UNITARY DIAGNOSTIC CODES
S ym pt o ms o f A bno rm a l
O pe ra t io n
( Le ga c y & C o m f o rt N e t ™
T he rm o s t a t )
• A ir co nditio ner/heat pump
fails to o perate.
• Integrated co ntro l mo dule
diagno stic/status LED display
sho ws the indicated co de.
• A ir co nditio ner/heat pump
fails to o perate.
• Integrated co ntro l mo dule
diagno stic/status LED display
sho ws the indicated co de.
• Very lo ng run time.
• Fo ur co nsecutive
co mpresso r pro tecto r trips with
average run time between trips
greater than 3 ho urs.
• Co mpresso r o perating at high
speed and o utdo o r fan
o perating at lo w speed
• Integrated co ntro l mo dule
diagno stic/status LED display
sho ws the indicated co de.
• Co mpresso r and o utdo o r fan
are o ff.
• Thermo stat demand is
present.
• Integrated co ntro l mo dule
diagno stic/status LED display
sho ws the indicated co de.
UNITARY DIAGNOSTIC CODES
D ia gno s t ic / S t a t us
LE D D is pla v C o de s
D igit 3 D igit 2 D igit 1
B LA NK d 3
B LA NK d 4
B LA NK 0 1
B LA NK 0 1
F a ult P o s s ible
D e s c ript io n C a us e s
• Co nfiguratio n • Shared data sent
M is-match to integrated
co ntro l mo dule
do es no t match
hardware
co nfiguratio n.
• Invalid M emo ry • Shared data o n
Card Data memo ry card has
been rejected.
• Lo w Side Fault • Lo w refrigerant
charge.
• Restrictio n in
liquid line.
• Indo o r blo wer
mo to r failure.
• Indo o r
thermo stat set
extremely lo w.
• Lo w ressure Cut • Lo w refrigerant
Out Trip charge.
• Restrictio n in
liquid line.
• Indo o r blo wer
mo to r failure.
• Indo o r
thermo stat set
extremely lo w.
16
C o rre c t iv e N o t e s &
A c t io ns C a ut io ns
• Verify system • Turn po wer OFF
type prio r to repair.
(co mmunicating • Use memo ry card fo r
o r legacy). yo ur specific mo del.
• Verify shared • Insert memo ry card
data is co rrect fo r B EFORE turning
yo ur specific po wer ON. M emo ry
mo del; re- card may be remo ved
po pulate data if after data is lo aded.
required. Turn po wer OFF
• Wire system as befo re remo ving
legacy system. memo ry card.
• Erro r co de will be
cleared o nce data is
lo aded.
• Verify system • Turn po wer OFF
type prio r to repair.
(co mmunicating • Use memo ry card fo r
o r legacy). yo ur specific mo del.
• Verify shared • Insert memo ry card
data is co rrect fo r B EFORE turning
yo ur specific po wer ON. M emo ry
mo del; re- card may be remo ved
po pulate data if after data is lo aded.
required. Turn po wer OFF
• Wire system as befo re remo ving
legacy system. memo ry card.
• Erro r co de will be
cleared o nce data is
lo aded.
• Verify refrigerant • Turn po wer OFF
charge; adjust as prio r to repair.
needed. • Fault will clear after
•Check fo r 3 co nsecutive no rmal
restricted liquid cycles.
line; repair/ • Fault may be cleared
replace as by cycling 4V A C to
needed. co ntro l.
• Check indo o r • Replace with co rrect
blo wer mo to r; replacement part(s).
repair/replace as
needed.
• Check indo o r
thermo stat
setting.
• Verify refrigerant • Turn po wer OFF
charge; adjust as prio r to repair.
needed. • Replace with co rrect
•Check fo r replacement part(s).
restricted liquid
line; repair/
replace as
needed.
• Check indo o r
blo wer mo to r;
repair/replace as
needed.
• Check lo w
pressure switch;
repair/replace as
needed.
• Check indo o r
thermo stat
setting.