LAARS U.H.E. - Service Manual - Manual (Page 34)

LAARS Heating Systems Page 34
Ignition Module Replacement Procedure
Step 1. Position main power switch to “OFF”.
Step 2. Disconnect (Unplug) water heater
from 120 Volt power source.
Step 3. Un-latch & remove surround cover from top of water heater.
Step 4. Locate Ignition module on control panel inside surround area.
(see photo below)
Step 7. Install new ignition module and secure in place with screws from step 6.
Step 8. Carefully reconnect all wire harness connection to ignition module. Connection are
non-interchangeable to insure proper reinstallation.
Step 5. Carefully disconnect all wire harness connection to ignition module. Connection are
non-interchangeable to insure proper reinstallation.
Step 6. Remove the 3 screws (Phillips screw driver) holding the ignition module in place and
remove ignition module from control panel.
Step 9. Restore 120 volt power supply to water heater and confirm proper operation following the
lighting instructions on the lighting instruction label or the lighting instruction located in
the installation and operating instruction manual.
Step 10. Replace surround cover on top of water heater.
Note: Replacement hot surface
ignition module works on all UHE
models prior to and later than “CF”
serial numbers. Direct spark ignition
models use a different control board
(detailed in following section).
Ignition Module
located on control panel
WARNING
120 volt potential exposure. Isolate the
appliance and reconfirm power is
disconnected using a multi-meter.
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