SECTION 12
TROUBLESHOOTING
#BHM-38 & #BHM-38-BW
R.1 September 2021
73
HUSSONG MFG. CO., INC.
KOZY HEAT FIREPLACES
12.0 TROUBLESHOOTING
ATTENTION: Troubleshooting must be performed by a qualified
technician.
Before proceeding with the steps in the following troubleshooting
guide,
•
Verify proper 120VAC power supply to the control module.
•
Verify the control module battery pack and the remote control
batteries are fresh and installed with correct polarity.
•
Verify all connections between the wire harnesses and the
system components are proper and positive.
•
Verify the communication link is established between the remote
control and the IFC module.
•
Verify inlet pressure meets the recommended inlet pressure. If
necessary, adjust line pressure regulator.
Issue
Cause
Solution
Pilot will not light
Electrical power interrupted or
disconnected
Restore electrical power to appliance or use battery back-up.
Wiring disconnection
Ensure batteries are fully charged if using battery back-up as power
source.
Use wiring schematic in this manual to determine that all wiring
connections are secure and correct.
Gas supply turned off
Check remote shut-off valves from the appliance. Usually there is a valve
near the main gas line. There may be more than (1) valve between the
appliance and main gas line.
Pilot will not stay lit
No propane in tank
Check propane tank. Refill if necessary.
Low gas pressure
Consult a plumber or a gas supplier.
Can be caused by situations such as a bent line, too narrow diameter or
pipe, or a low line pressure.
Pilot flame not making contact
with the flame rectification sensor
on the pilot assembly
Verify the pilot flame envelopes the top of the flame sensor and extends
far enough onto burner for ignition.
To adjust pilot flame, turn pilot adjustment screw on the gas valve
clockwise to decrease flame, and counterclockwise to increase flame.
Pilot adjustment screw not sealed
Seal pilot adjustment screw. Do not over-tighten.
Pilot flame always on, or
will not extinguish
Control system set to CPI mode
Set control system to IPI mode
.
Main burner flame will not
light
ON/OFF rocker switch in OFF
position
Switch rocker switch to ON position.
Gas supply turned off
Check for multiple shut-offs in the supply line. Verify gas supply is turned
on.
Low gas supply
Consult with plumber or gas supplier.
Check propane tank. Refill if necessary.
Wiring disconnection or improper
wiring
Check for faulty or incorrect wiring. Refer to section
9.0, ELECTRICAL
INFORMATION
on page 60.
Plugged main burner orifice
Remove blockage.
Pilot flame
Verify the pilot flame is properly directed to ignite burner. See pilot
flame troubleshooting above.
Remote control not working
properly
Replace batteries.
No call for heat
Verify remote control is powered ON and thermostat operation is turned
OFF.
