Heating Water With Lp-Gas; Indicator Lamp; The Ignition Module Will Perform The Following Sequence - Monaco DIPLOMAT 2004 Owner's Manual

DIPLOMAT 2004
Ignition Module
Function
4 •186

Heating Water with LP-Gas:

• Make sure the primary LP-Gas valve is open and the electric LP valve
is on.
• Turn on the water heater 12 V switch. The indicator light on the
switch will illuminate briefly then go out when the burner ignites. The
burner will make an audible "roar" when lit.
• The automatic ignition circuit board will attempt three ignition
cycles to light the burner. If the burner does not light after the third
attempt, the circuit board will "lock-out" and the indicator light on
the switch will glow steady.
• Check the level of LP-Gas in the tank and make sure the primary
LP-Gas valve is on. Cycle the LP switch Off then back On to reset
the ignition board.
NOTE: The LP-Gas and AC electric functions may be on at the
same time. This will speed the recovery process of
heating water for large volume use.
CAUTION: It is recommended not to operate the water heater on
LP-Gas while the motorhome is in transit. Be sure the water heater
is off before refueling.
WARNING: Before beginning any service or work on the water
heater make sure the LP-Gas is turned off, the 120 Volt AC source
has been disconnected and the 12 Volt DC source has been
disconnected. Failure to do so can result in explosion, fire or injury.

Indicator Lamp:

• Illuminates briefly when the LP switch is turned on, ignition
occurs and the lamp goes out.
• If the burner does not light within 6 to 9 seconds the ignition
board will attempt two more ignition cycles. If the burner does
not light after the third attempt, the indicator lamp glows steady.

The ignition module will perform the following sequence:

1. The module has a timing circuit, which allows 6 to 9 seconds
for ignition to occur.
2. Initially the module supplies current to the gas valve. At the same
time, it produces a high-voltage current supply to the electrode
to produce a spark at mixture tube.
3. Upon ignition, the electrode senses the presence of flame.
4. If ignition does not occur, the module will wait 20 to 40 seconds
before the next ignition cycle.
APPLIANCES