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Air Heater Assembly - Maintenance
TROUBLESHOOTING GUIDE
General Problem
No Heat Output
LN-9245-00.8
Possible Causes
1. Power to unit not On
2. Blown fuse(s) in tempera-
ture controller
3. Air not turned On to unit or
pressure switch
4. Air pressure too low at
pressure switch
5. High limit thermostat switch
off
Corrective Action
1. Turn Power On.
2. Replace fuse(s) with same type and determine
cause.
3. Turn air On.
4. Increase air pressure signal to the pressure
switch.
5. Manually reset switch and investigate reason
for switch turning off.
18
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