Service manual
SECTION 15: REPLACEMENT PARTS
49 of 59
15.5 Ignition Electrode and Flame Probe for Models UHA[X][S] 300-400
Inshot
Burners
Inshot
Burners
Burner Compartment
Front Views
Flame
Probe
Flame
Probe
.120
(3 mm)
spark
gap
Ignition
Electrode
Limit
Thermostat
Remove
Screw
Ignition
Electrode
Remove all
burner compartment
screws to remove
the burner
compartment and
access the
“Front View”
Inshot
Burners
Flame
Probe
Description Part Number Qty.
Spark Electrode 90427411 1
Automatic Ignition Flame Probe 90439300 1
Transformer 90436900K 1
Ignition Module 90434008 1
Inshot Burners UHA[X][S] 300 92000000 12
Inshot Burners UHA[X][S] 350 92000000 14
Inshot Burners UHA[X][S] 400 92000002 14
Limit Switch (150 - 400) [300 - 400 LOWER] 90412103 1
Limit Switch (300 - 400) [UPPER] 90412105 1
To replace the electrode or flame probe, remove the electrical lead and screw.
Pull out from mounting. Refit in reverse ensuring that the gap to burner is as shown in the
front view of the burner compartment.










