NO
closed?switch door | closed?breaker circuit | YES |
Is | Is |
|
NO | NO |
|
|
| YES | switch? | YES |
| closed? |
| togoing |
|
GUIDE | switchdoor Is |
| 115Vthere Is |
|
TROUBLESHOOTING | NO L2?and L1at 115V | YES | NO | YES |
| thereIs |
| thereIs |
|
| NO |
|
|
|
START | on?light | YES |
| statusLED Is |
|
circuitfrom wirein continuity | .furnace |
forCheck | tobreaker |
doorReplace .switch
furnaceReplace .control
.START
bacgo tok
breakcircuit ander
Close
Replace .transformer
If. | .phasing transformer(24V) voltage |
YES |
|
rapidlyblinking | NO |
lightstatus | pause?a |
LEDIs | without |
wireRED thefrom
To statusrecall brieflycode andremove onereconnect
do .recall controlLED codestatus theshorting RED initiating momentarily On.code before by statusstored panelaccess codestatus display blower vious toswitch or prethe safeguard power recall remove also draft not canYou | |
NO |
|
slowlyON/OFF | flashes?long and |
blinking | shortof |
lightstatus LEDIs | combinationa with |
willLED .out | 1and short(1 |
goesLED | #11code |
theuntil | statusor |
terminalCom24V | faultprevious the |
toterminal TEST/TWIN | ofcode statusthe flash |
YES
theAfter repeatscontrol codethe
previousno .fault
wasthere
long ifflash)
indicated | entirethe | andspeed, |
Once | forrun | HEAT |
.sequence testcomponent thestart willcontrol thetimes, 4 | willinducer The.speed HEATHI atON turnwill controlthe | HIspeed, HEATLO motorblower HSI,The .test component |
ais codestatus The | mineddeter digitfirst |
.code statusDetermine | thewith numberdigit 2 |
roomCheck orthermostat
speedCOOL runwill 10for 15– eachseconds Gas. andvalve willhumidifier
secondthe
shortfo andflashes
by numberthe
.cable interconnecting | NO | G control? orY/Y2 Y1,W2, furnacethe W/W1,at onterminals present thermostat 24VIs | |
|
| NO |
|
bewill inducer |
| Y1,W2, W/W1,to respondcontrol theDoes | signals?thermostat (24V)G andY/Y2, |
theOFF turned |
| NO |
|
ismotor . blowerthe seconds10 hen forspeed W.on - turned lowto be switched not |
| othercode statusprevious athere Was | #11?than |
|
| YES |
|
flashes? |
| thatcode status |
|
longof numberthe bydigit |
| theor fbelow sectionto Go | .flashed was |
YES | thefrom wiresthermostat |
| theall .control Disconnect furnace |
YES | heat, Status RED bealso .interrupted |
ausing whenrepeat lemprob wire? theDoes jumper | NO | thewith resistor,ballast toterminal .thermostat compatible a thermostat the notis installEither Com24V replaceor thermostat . thermostat, The controlfurnace theconnect the |
YES |
|
|
furnaceReplace .control
312AAV
A02107A
Fig. 56 - Troubleshooting Guide - 2-Speed
53
