TROUBLESHOOTING
POSSIB LE CAUS ES
UNIT D OES N OT START
● Unit m ay ha ve be come un plu gge d
● Fuse m ay ha ve bl own
● Circ uit b rea ker may h ave b een t rippe d
● Unit m ay be o ff o r in wa ll ther mos tat m ode.
Ch e c k s e c ti on o n d ip s wi tch se tt in g s t o ve r if y
dips wit che s are set p rop erl y.
● Uni t m ay be in a pr ote ction or d iag nos tic fa ilure
mode . See s ect ion on di agn ost ic code s.
●
●
●
●
●
●
●
●
●
●
●
DISP LAY H AS ST RANGE NUM BER S/CHA RAC TER S
ON IT
UNIT M AKI NG NOIS ES
UNIT N OT CO OLING / H EATING R OOM
Unit a ir di sch arge se cti on is b locke d
Temper atu re se tting i s not h igh o r low eno ugh
Note : S etpoi nt limit s may not all ow the u nit t o h eat o r
cool the ro om t o the t emp eratu re d esi red. C hec k
sect ion o n dip switc h set tin gs.
Unit a ir fi lte rs are di rty.
Room i s exc ess ively h ot or c old w hen uni t is st arted
Vent do or le ft op en
Unit may be in a pr ote cti on or d iagnosti c fa ilure mod e.
Chec k sec tio n on Inte lli gen t Se lf -- - che cking C ont rol .
Comp res sor is in ti me del ay. Th ere is a pro tecti ve tim e
dela y (appr ox . 3 mi nutes ) on sta rti ng t he c omp ressor
afte r a powe r o utage (or re start ing afte r i t h as bee n
turn ed off ), to preve nt tripp ing of the compre sso r
over loa d.
WATER DRIPPING OUTSIDE
WATER DRIP PIN G INS IDE
Wal l sle eve is no t ins tal led lev el
ICE OR F ROS T FORMS O N IND OOR C OIL
Low ou tdo or te mpera tur e
Dirt y fil ter s
COMP RES SOR P ROTEC TIO N
Powe r may h ave c ycl ed, s o com press or is in a re sta rt
prot ect ion .
SOLUTI ONS
Chec k tha t plu g is plug ged s ecu rely in w all r ece ptacl e.
Note :Pl ug h as a test/ res et b utton on i t. M ake sure t hat the
plug h as no t tri pped.
Repl ace t he fu se.
Rese t cir cui t break er.
Tur n uni t on (bot tom r igh t butto n on ke ypad).
Note : If the u nit t urns on, t he LE D wil l be gr een . If th e u nit i s
off, the LED will be red. If there is no LED on, the re i s a
prob lem w ith p ower or d ama ge to t he cont rol .
Th e u n it may be i n a d iagn ost i c c ondi tio n. C hec k
--- ch eck ing Co ntr ol sec tion t o d ete rmi ne
if uni t has h ad a fa ilure .
The unit may b e set f o r ° C ( ins tead of ° F) , s ee th e key pad
conf igu rat ion sec tio n
Clic ki ng , gurg li ng and wh oo shing no is es a re n ormal du ri ng
oper at io n of unit .
Make sure that cur ta in s, blind s o r f ur ni ture are not rest ricti ng or
bloc ki ng u nit air fl ow.
Rese t to a l ow er or hig he r te mpera tu re s ettin g.
Remo ve a nd c lean fi lt er s.
Allo w su ff ic ie nt amou nt o f ti me for un it t o he at or coo l th e ro om.
Star t he at ing o r co ol ing e ar ly befo re outd oo r tem pe ra ture, c oo ki ng
heat o r ga th ering s of p eo ple mak e ro om u ncomf or ta ble.
Clos e ve nt d oor.
Chec k di ps witch s et ti ngs for d es ir ed comf or t.
Wai t ap pr oxi ma te ly 3 m inu te s fo r co mpres so r to s tart
If a drai n kit has not bee n install ed, conde nsa tio n runoff
duri ng ver y hot an d hum id wea ther is norma l. See Note 2. If
a d rai n kit h as b een insta lle d and is con necte d to a drain
syst em, che ck g ask ets and fitti ngs aro und drain for lea ks
and pl ugs .
Wal l sle eve m ust be insta lle d lev el for prope r dra ina ge of
cond ens ati on. C hec k tha t ins tal lat ion i s lev el and m ake any
nece ssa ry ad justm ent s.
When outdoor tem p e r a t u r e i s a p p r o x i m a t e l y 5 5 ° F
(12. 8°C ) or b elo w, f ros t may form o n the indoo r coi l when
unit i s in C ool ing mod e. S wit ch u nit t o FAN o peration u ntil
ice or f ros t mel ts.
Remo ve an d cle an filt ers .
Rand om Comp resso r re sta rt—Wh ene ver the unit is
plug ged in, o r p owe r h as bee n r estar ted , a rando m
comp res sor rest art will occur. Aft er a pow er outag e, the
comp res sor w ill res tar t aft er appr oxi mately 3 min ute s.
Comp res sor P rotec tio n — To preven t sho rt cy cling of the
comp res sor, t her e i s a r and om st art up de lay of 3 m inu tes
and a mi nim um co mpres sor r un ti me of 3 min ute s
●
●
●
●
●
diag nos tic co des
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
-13-