Problem
Possible Cause
Solution
Thermostat
does not
work
The pilot flame has gone out
· Turn it ON
The On/Off switch is turn to OFF
The thermostat is set too high
· Set the thermostat to a lower temperature
No spark
generation
Spark developes near the pilot
assembly or could occur onboard
· Check pilot assembly wiring
· Check for broken or poor connection from the sparker to the
electrode
· Check for the spark shorting or arcing at other locations
· Check for defective sparker and spark electrode
No pilot
flame ignition
No spark from the igniter
· See “no spark generation”
Air in the gas line
· It takes a while for all the air to purge out of the pilot before gas
can reach the pilot and ignite
Pilot gas pressure dropout upon
main burner gas valve opening
· Check gas mains supply and pressure
No gas flow out of the pilot burner
· Check gas valve wirings and connections to the board
· Check the pilot burner for obstruction
· Check the wirings and connections between the pilot assembly and
the board
· Check the correct gas type settings on the valve and pilot burner
assembly orifice
Pilot will not
remain lit
Problem with Flame Sensor circuit
· Check for proper connection of the Flame Sensor to the DFC board
· Check pilot for full flame impingement around Flame Sensor
· If flame is too small, check gas pressure, adjust pilot rate screw,
check pilot head for damage
· Ensure the ground wire is properly attached to the pilot mounting
bracket and that it is makes a good electrical connection.
Restrictor setting
· Use the correct restrictor setting for the venting configuration
Remote
control does
not work
The pilot light has gone out
· See “Pilot will not remain lit”
The remote is too far away from
the heater
· Use the remote closer to the heater
The remote control receiver is
turned “OFF”
· Check the remote control instructions
One of the two remote control or
receiver batteries are dead
· Replace the batteries
No reaction
to command
Receiver or transmitter batteries
are low
· Replace the batteries
A maximum number of failed
ignitions or flame restorations have
been reached.
· Remove any possible blocking conditions. See “locking conditions”
· See how to reset the board from Lockout
No communication between the
remote control and the receiver
· Reprogram the transmitter to the receiver.
· Follow the initializing system for the first time
TroubleShooting
40
