53
Trouble Shooting
Table 9:
Troubleshooting
If a particular flame is curving excessively, your burner media not be evenly distributed,
creating an abnormal draft on the flame. Position burner media infront of the secondary
air slots in the affected area to slow down the draft. You can fine tune the flame this way
to ensure healthy flame appearence.
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 IFC 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
· Move or completely remove intake blocker plate
Remote
control
(transmitter)
does not
work
The pilot light has gone out
· See “Pilot will not remain lit”
The transmitter is too far away
from the heater
· Use the transmitter to the heater
The transmitter batteries are dead
· Replace the batteries
No reaction
to command
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
Note: For C72ID specific troubleshooting refer to the Dexen user manual supplied
Summary of Contents for C72I
Page 55: ...55 Parts Diagram 1 2 3 4 5 6 9 7 8 12 13 14 10 15 15 ...
Page 57: ...57 Notes ...
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