Heat Controller, Inc. OWNER’S MANUAL SMA/SMH
12
Troubleshooting Tips
Stoptheairconditionerimmediatelyifoneofthefollowingerrorsoccurs.Disconnectthepowerandcontact
anauthorizedservicer.
Callfor
serviceif
OPERATIONindicatorlightashesrapidly(5timeseverysecond)andthiscan’tbexedbydis-
connectingthepowerandthenreconnectingit.
Fuseblowsorcircuitbreakertripsfrequently
Otherabnormalsituations(suchasburningsmells)thatcan’tberesolvedusingthestepsoutlined
below.
Symptoms Possible Cause/Things to Check What should be done?
Unitdoes
no start or
operate at
all
Istherepowersuppliedtotheunit?
Waitforthepowertoberestoredorcallan
electriciantoaddressanypowersupplyproblem.
Fusemayhaveblownoutoracircuit
breakerhasbeentripped.
Replacethefuseoripthecircuitbreaker.
Batteries in remote controller may be dead
or installed incorrectly.
Replace the batteries and ensure the polarities
are correct.
Istheunit’stimerset? Wait or cancel timer setting.
Poor cooling
or heating
(heatpump
modelsonly)
performance
Inappropriate temperature setting. Set temperature correctly.
Airltermaybeblocked Cleantheairltertopreventairowblockages.
Doorsorwindowsareopen.
Closethedoorsorwindowswithinthearea
beingcooled/heatedtoincreaseefciencyand
performance.
Airinletoroutletofindoororoutdoorunit
areblocked.
Clearobstructionsaway,thenrestarttheunit.
Compressortimedelayhasbeenactivated
Waitapproximately3minutesforthecompressor
to turn on and the unit to begin cooling/heating.
Iftheproblempersistsafterperformingthesechecks,orifyounoticeburningsmells,ortheoperation
indicatorlightashesrepeatedly,immediatelystopoperation,disconnectthepower,andcallanauthorized
servicecenter.