Operating instructions

Open Temperature Sensor On Inlet (Probe Fault) -- 5 PULSES
• Thecentrolwillsemeanopentemixamtaelxobe. Ifanolxmprebeissensed, thecontrolwillgo intothe lockcot stsle. VerifythattheInlet
ptol_ isixotx:dyconnectedtotheccotrolboard, lfthe t_maperaaaeIxobeisinan mvi_maent oflesstben(YFthenwait forambienttemper-,mae
torise,or applyheattothe tnait Ifthe t(matxratlaeprobe isinan environmentofmore then230°Fthenwait forthetmll_mtmeto towerbelow
200°F
Open Temperature Sensor On Outlet (Probe Fault) -- 6 PULSES
The control will sense an open temperature probe. If an open probe is sensed, the control will go into the lockout state.
Verify that the Outlet probe is properly connected to the control board. If the temperature probe is in an environment of less
then 0°F then wait for ambient temperature to rise, or apply heat to the unit. If the temperature probe is in an environment
of more then 230°F then wait for the temperature to lower below 200°F
Air Pressure Switch Fault Stuck Closed-- 7 PULSES
If the control senses the blower pressure switch is closed when it is expected to be open, the control will wait approximately
90 seconds for the fault condition to clear. If after approximately 90 seconds the control still senses the blower pressure
switch is closed, the control will go into the lockout state. Verify that the blower motor is operational and that the 120VAC
power cable is connected to the blower. Check that the wires are connected to the blower air pressure switch and that the
are pressure switch is functional. This may require turning the screw in the center of the air pressure switch 1tom clockwise
to correct - (Initial set-up only). After any air pressure switch adjustment, you must cycle the appliance several times to
insure proper operation.
Air Pressure Switch Fault Stuck Open -- 8 PULSES
lflhe cor_l sensestheblowerpressaneswitchis rt_ cl¢_,eddtring thetre-ptwgecycle,lhe_1 _ _ _ _ _ _.
Ifatter ttweewe-ptrg_ Irialstlaecon_ol isstillsensing(heblowerWesst_ switchis not c_ _ _1 _ _ _ 1_o_ _. Check
that the blowerrnO,or ksoffand verify lhatfiaeblower airim_sure switch isfunctional.Thismay require O.mainglhe screw m_ _ of_
air ptessaneswitch in 1/4turncotuaer-c!ockwJseto cunect- ('mitialset-uponly).After any air pressare switchadjusmaent,yco mustcycle the
appliance seversltimestoinst_ txoperoperation.
Redundant Gas Valve/Gas Valve Relay Stuck ON-- 9 PULSES
1. If_hec_t_uersemes_hetedtax_antgasva_ve_rthegasvalvere_ayisstuck_Nitwi_g_int__ Check for short-cit_t(s)
from the24VACand nocorainuitybetweenCN4 pins3 &4. lfthe problempersists,replacelhe controlboard.
Redundant Gas Valve/Gas Valve Relay Stuck OFF-- 10 PULSES
l. If the controller senses the redundant gas valve or if the gas valve relay is stuck OFF it will go into a lockout state. Replace
the control board.
GasValve NOT Connected -- 11 PULSES
1. If the controller detects that the gas valve is not connected it will go into the lockout state. Check the connection of the gas
valve.
ROM Checksum Failure-- 12 PULSES
1. If the controller detects that the ROM check has failed then it will go into a lockout state. Cycle the power from the ON to
OFF state. If the problem persists, you may need to replace the control board.
RAM Test Failure-- 13 PULSES
1. If the controller detects that the RAM test failed it will go into a lockout state. Cycle the power from the ON to OFF state.
If the problem persists, you may need to replace the control board.
60Hz Failure-- 14 PULSES
1. If the generator, inverter, or other power source does not provide 60Hz then the power source must be replaced. If the power
source used supplies 60Hz then cycle the power from the On to OFF state. If the problem persists, then you may need to
replace the control board.
14