TM 10-4520-262-12&P 0012 00
OPERATOR MAINTENANCE
SPACE HEATER, CONVECTIVE
(NSN 4520-01-431-8927)
0012 00-1
FLAME SENSOR
REPLACE
INITIAL SETUP
Tools
Materials/Parts
Wrench (Table 2, Item 2, WP 0044 00)
Flame sensor (Item 9, WP 0067 00)
Equipment Condition
Heater shut down and all advisory lights off. (WP
0006 00)
In-tent controller assembly disconnected from
heater. (WP 0006 00)
Fuel supply disconnected. (WP 0006 00)
Battery disconnected. (WP 0018 00)
WARNING
The ignition system of this heater contains dangerous voltages which can cause severe
electrical shock. Be sure to disconnect battery connector before performing any
maintenance actions.
REPLACE
1. Disconnect battery pack connector (1) from lower housing assembly.
2. Remove the upper housing assembly (2) by first removing the two dust covers (3) at the inlet and
outlet ends of the heater.
3. Remove the two duct adapters (4) at the inlet and outlet end of the heater by releasing the two
fastener housings (5) from the fastener keepers (6).
4. Remove the upper housing assembly (2) by releasing the remaining fastener housings (7) from
their corresponding fastener keepers (8). Lift and remove the upper housing assembly (1). Set
the upper housing assembly aside.
