Installation / Operation Instruction Manual

36
TROUBLESHOOTING
LEDStatus ControlStatus ProbableCause
None(LEDnotonor
flashing)
Electricalpowernot
present.
Controlpowerswitchin“OFF”position.Supply
voltageinteruppted.
Oneshortflashevery
fourseconds
Stand‐bymode,
Thermostatis
satisfied(nofaults).
Temperaturedemandissatisfied(nocallforheat).
Alternatesbrightand
dim(Heartbeat)
Thermostatcalling
forheat(nofault).
Tanktemperaturebelowsetpointofthermostat.
Shortflashonce
everysecond
Weakpilotsignalon
lastcallforheat.
1.Unstablepilot.
2.Pilottubeblockorrestricted.
3.Oxidationbuilduponpilotelectrode.
4.Wiredamagetopilotassemblyorbad
connection
atgasvalve.
Shortflashonce
everytwoseconds
Idleremote
commandoff
1. ControlputinidleorSabbathmodefrom
accessorymodule
Twoflashes,three
secondpause
Pressureswitchnot
working‐closed
position.
1.Pressureswitchtubingkinkedorblocked.
2.Blockedpressuretaponswitch.
3.Faultypressureswitch.
Threeflashes,three
secondpause
Pressureswitchor
blowertemperature
switchnotworking‐
openposition.
1.Ventblockageorimproperventconfiguration.
2.Pressureswitchtubingkinkedorblocked.
3.Blowernotspinninguptospeed.
4.Venttemperaturetoohigh
5.Faultypressureswitchorventlimitswitch.
Fourflashes,three
secondpause
Excessivetank
temperature.
Systemmustbe
reset.
1.Excessivesediment
2.Hotwaterenteringthetankfromanother
 sourceinthepotableloop.
3.Faultygasvalve.
Fiveflashes,three
secondpause
Falsepilotflame
present.
1.Pilotvalvestuckinopenposition.
Sixflashes‐oneflash,
threesecondpause
(Softlockout)
Failedtolightpilot.
Systemautoresets
after5minutes.
1.Unstablepilot.
2.Pilottubeblockedorrestricted.
3.Oxidationbuilduponpilotelectrode.
4.Wiredamagetopilotassemblyorbad
connectionatgasvalve.
Sixflashes‐two
flashes,threesecond
pause(Softlockout)
Pressureswitchor
blowertemperature
switchopened
duringburner
operation.
Systemautoresets
after5minutes.
1.Pressureswitchtubingkinkedorblocked.
2.Ventblockageorimproperventconfiguration.
3.Ventterminationbeingaffectedbywindy
conditions.
4.Blowernotspinninguptospeed.
5.Venttemperaturetoohigh
6.Faultypressureswitchorblowertemp.switch.