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Manual 2100-455A
Page 20 of 25
TROUBLESHOOTING
SOLID STATE HEAT PUMP CONTROL
TROUBLESHOOTING PROCEDURE
1. Turn on AC power supply to indoor and outdoor
units.
2. Turn thermostat blower switch to fan on. The indoor
blower should start. (If it doesn’t, troubleshoot
indoor unit and correct problem.)
3. Turn thermostat blower switch to auto position.
Indoor blower should stop.
4. Set system switch to heat or cool. Adjust thermostat
to call for heat or cool. The indoor blower,
compressor, and outdoor fan should start.
NOTE: If there was no power to 24 volt transformer,
the compressor and outdoor fan motor will not
start for 5 minutes. This is because of the
compressor short cycle protection.
TABLE 5
TROUBLESHOOTING
MOTPMYSSESUACELBISSOPKCEHCOTTAHWRIAPERROKCEHCOTWOH
rosserpmoC
tonseodrotcatnoc
rognitaeh(ezigrene
.)gnilooc
gniriwtiucriclortnoCtinutanoitcennocRrofkcehC
C-Rneewtebtlov42dna
taehrewopottinuroodtuootnoitcennocRnuR
.lortnocpmup
tuokcolrosserpmoC.1
.2
neewtebV42rofkcehC
.lortnocpmuptaehnoC-1L
hgihssorcakcehC
hctiwserusserp
.1
.2
tatsomrehtnrut,C-1LneewtebegatlovonfI
erusserphgihteserotniaganodnaffo
.hctiws
tonlliwdnaneposihctiwserusserphgihfI
.hctiwserusserphgihecalper,teser
elcyctrohsrosserpmoC
noitcetorp
C-CCneewtebV42rofkcehC
.lortnocpmuptaehnoC-Ydna
pudeepsrepmuj,C-CCneewtebegatlovonfI
dluohsrewopsdnoces01nihtiwdna,lanimret
pudeepsevomeR.C-CCneewtebraeppa
.sdnoces01retfarepmuj
lortnocpmuptaeH
evitcefed
elbissoprehtollakcehC
.560-0012launaM.sesuac
.lortnocpmuptaehecalpeR
evitcefedrotcatnoCliocdetrohsroneporofkcehC
.gnidniw
.rotcatnocecalpeR
tongnisahprewoP
tcerroc
esahpnoDELderrofkcehC
.)ylnostinuesahp3(rotinom
.tinuehtotsdaelrewopowthctiwS
rotomroodtuonaF
nurtonseod
gnitaehrognilooc(
gnirudtpecxe
.)tsorfed
evitcefedrotoMdetrohsroneporofkcehC
.gnidniwrotom
.rotomecalpeR
roticapacrotoM
evitcefed
kcehC.gnitarroticapackcehC
.roticapacdetrohsroneporof
.roticapacecalpeR
lortnocpmuptaeH
evitcefed
noyalernafssorcakcehC
.)CN-moC(lortnocpmuptaeh
.lortnocpmuptaehecalpeR
evlavgnisreveR
ezigrenetonseod
.)ylnognitaeh(
dionelosevlavgnisreveR
evitcefedlioc
.liocdetrohsroneporofkcehC.liocdionelosecalpeR
lortnocpmuptaeH
evitcefed
C-VRneewtebV42rofkcehC
.C-Bdna
.1
.2
.gniriwtiucriclortnockcehC
.lortnocpmuptaehecalpeR
otniogtonlliwtinU
tsorfed
.)ylnognitaeh(
rorosneserutarepmeT
lortnocpmuptaeh
evitcefed
erutarepmettcennocsiD
repmujdnadraobmorfrosnes
dnaslanimretpudeepsssorca
sihT.slanimretpmujnes
ogottinuehtesuacdluohs
nihtiwelcyctsorfedahguorht
.etunimeno
.1
.2
ecalper,elcyctsorfedhguorhtseogtinufI
.rosneserutarepmet
,elcyctsorfedhguorhtogtonseodtinufI
.lortnocpmuptaehecalper
emoctonlliwtinU
tsorfedfotuo
.)ylnognitaeh(
rorosneserutarepmeT
lortnocpmuptaeh
evitcefed
pudeepsssorcarepmuJ
esuacdluohssihT.slanimret
tsorfedfotuoemocottinueht
.etunimenonihtiw
.1
.2
ecalper,elcyctsorfedfotuosemoctinufI
.rosneserutarepmet
,elcyctsorfedfotuoemoctonseodtinufI
.lortnocpmuptaehecalper