LAARS IGE-199C-5(N,X) - Service Manual - Manual (Page 51)

IGE - 11. Removal of Thermal Fuse:
CAUTION
120 volt potential exposure. Isolate the appliance
and reconfirm power has been disconnected
using a multimeter.
This process may involve removing the heat
exchanger if the thermo-fuse on the rear of the
heat exchanger is blown.
(Service Procedure IGE-10, page 50)
a. The unit has four thermal fuses, see
picture below for location.
b. Disconnect and remove the thermal fuse.
Re-install new thermo fuse using the
existing thermo fuse clips. Reconfirm inlet
and manifold gas pressures are set to
the proper setting. Ensure unit matches
gas type being supplied to the heater.
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