Diagnostic Chart; Troubleshooting; Replacement Parts - Dometic DF Serie Instructions D'installation

DIAGNOSTICS
A. Ignition Control Diagnostic Codes
• The following chart gives the diagnostic codes given by the ignition control when faults are present . An LED light, located in the
middle of the control board, will flash the codes indicated in the diagnostic chart . There is a standard of three tries for ignition
controls .
• A "soft lockout" is a condition that is timed and will make additional attempts to correct the problem .
• A "hard lockout" requires resetting the thermostat or turning the power switch off, and then back on .
FAULT
Internal Circuit Board Failure
Limit Switch/Airflow Problems
Flame Sense Fault
Ignition Lockout Fault

TROUBLESHOOTING

ISSUE
Furnace will not light – Blower does not
turn on.
Furnace will not light – Blower does turn on.
Furnace shuts off before it reaches the desired
temperature .

REPLACEMENT PARTS

 ELECTRICAL SHOCK, FIRE, EXPLOSION AND/OR CARBON MONOXIDE HAZARD . Use only Dometic replacement
parts and components, which are specifically approved for use with the Furnace . Failure to obey this warning could result in
dangerous operation, property damage, serious injury, or death:
• For replacement part information, see the DF Series Furnace Parts List . For the most current information, visit
www .eDometic .com .

DIAGNOSTIC CHART

LED INDICATION
Steady On, No Flashing
1 Flash With 3-Second Pause
2 Flashes With 3-Second Pause
3 Flashes With 3-Second Pause
1 . Check the main fuse panel for a blown fuse .
2 . The Furnace-installed breaker switch may be tripped or OFF – Contact a trained RV
service provider .
3 . The 12 VDC power is low; check the RV system voltage .
4 . The Furnace may be in lockout . Reset the Furnace by switching the thermostat to OFF
for 10 seconds, then switch the thermostat to ON . If air is in the propane line, repeat this
process up to three times .
5 . Check the intake and vents to make sure they are not blocked or obstructed .
1 . Air is in the propane line . Purge the air by turning on other appliances (like a cooktop) that
are further downstream from the propane tanks .
2 . The thermostat is not set to Heat or a high enough temperature . Adjust the thermostat .
1 . Check to make sure all the vents are open and not covered .
2 . Check the air intake to make sure it is not blocked or obstructed .
25
LOCKOUT
Hard
Soft
Hard
Soft (1 hour retry)
SOLUTION