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 TM 5-4120-356-14
T a b l e 3-2. Organizational Troubleshooting (continued)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
EXCESSIVE COOLING (continued)
S e l e c t o r switch set to "COOL" rather than "VENTILATE".
Step 2.
S e t selector switch to "VENTILATE".
6.
INSUFFICIENT HEATING
Step 1.
Thermostat improperly set.
Set thermostat for desired temperature. (See figure 2-1.)
Step 2.
S e l e c t o r switch set to "LO-HEAT" instead of "HI-HEAT".
(See figure 2-1.)
Set selector switch to "HI-HEAT".
7.
NO HOT AIR DISCHARGE
Step 1.
Selector switch set in wrong position.
Set selector switch to "LO-HEAT" or "HI-HEAT" as desired.
Step 2.
Thermostat
improperly
set.
Set thermostat for desired temperature. (See figure 2-1.)
Step 3.
Air filter dirty or clogged.
Remove and clean air filter. (Refer to paragraph 3-9l.)
8.
EXCESSIVE HEATING
Step 1.
Thermostat
improperly
set.
Set thermostat for desired temperature. (See figure 2-1.)
Step 2.
S e l e c t o r switch set to "HI-HEAT" instead of "LO-HEAT".
(See figure 2-1.)
Set selector switch to "LO-HEAT".
3-7
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