LAARS IGE-199C-5(N,X) - Service Manual - Manual (Page 47)

47
WARNING
Dip switched #7 and #8 (combustion control switches) MUST
be returned to the "OFF" position, after setting pressures.
Dip switch #1 MUST be returned to the proper position
based upon the length of vent pipe (see page 13).
IMPORTANT
When dismantling the unit you should always isolate
the following items:
• Gas supply
• Electrical supply
• Water supply
• Drain all water from the appliance
The following diagram may be of assistance in locating
the above.
IGE - 1. Removal of the Front Panel
CAUTION
120 volt potential exposure. Isolate the appliance and
reconfirm power has been disconnected using a
multimeter.
a. Remove the four (4) screws holding the
panel in place with a Phillips driver.
IGE - 2. Removal of PC board
CAUTION
120 volt potential exposure. Isolate the appliance and
reconfirm power has been disconnected using a
multimeter.
a. Remove the two (2) screws holding the
PCB in place with a Phillips screw driver,
then pull the PC board out of the
appliance.
Disconnect all connectors.
IGE - 3. Removal of the Water Flow Sensor and
Water Flow Control Valve Assembly
CAUTION
120 volt potential exposure. Isolate the appliance and
reconfirm power has been disconnected using a
multimeter.
a. Remove one (1) Phillips screw from the
heat exchanger water supply line and (1)
screw from the bypass valve assembly. Lift
the water line retainer up and over the
housing it attaches to, pull water line
towards yourself to disconnect water lines
from the assembly. Inspect o-rings for
damage, replace if defective.