DIAGNOSTIC SAFETY SHUTDOWN AND TROUBLE SHOOTING
FAULT
Motordoesnotstartandnoignition
Motorstartsnoignitionorcutsout
Motorstarts,heateremitssmoke
Heaterdoesnotstop
ERROR CODE
E1
E2
E3
E4
E5
E6
E7
DEFAULT T-STAT SETTING
68°F
Mr. Heater, Inc. | Kerosene Fired Radiant Heater
CAUSE
Noelectricalcurrent
Wrongsettingonthermostat
Defectivemotor
Notenoughfuelattheburner
Electronicigniterdefective
Flamecontrolboxdefective
Photocelldefective
Solenoiddefective
Notenoughcombustionair
Fuelcontaminatedorcontainswater
Airleaksinfuelcircuit
Notenoughfuelatburner
Toomuchfuelatburner
Solenoiddefective
LED DIAGNOSTIC READ OUT TABLE
DESCRIPTION
Ignitionfailedorflameout
Temperaturesensormalfunction
Highlimitswitchoverheat
Flamecontrolmalfunction
Solenoidmonitormalfunction
Photcellfault
Motorspeedfault
T-STAT RANGE
41°F-99°F
5
Operating Instructions and Owner's Manual
SOLUTION
Checkpowersupply(isitpluggedin?)
Checkproperpositionoftheswitch(isiton?)
Checkfuse/breaker
Checkforsettingofthermostathigherthanroom
temp.
ReplaceMotor
Ensureanadequateleveloffuelisinthetank.
Cycleunitafewtimetoallowfueltofillthefilter
andfuelsystem.
Checkfuellinesincludingfilterforleaks.
Cleanorreplacenozzle.
Checkigniterconnectionsincludingtransformer
Checkelectrodesforcorrosionandcarbonbuildup.
Replacetransformer
Replaceflamecontrolbox
Cleanorreplacephotocell
Checkconnections
Replacesolenoid
MakesureAirinletandoutletarefree
Cleanburnerdisc
Drainfuelintankandreplacewithcleanfuel
Cleanorreplacefuelfilter
Checkfuellinesandsystemforpossibleleaks
Cleanorreplacefuelnozzle
Replacenozzle
Replacesolenoid