PREVENTIVE MAINTENANCE CHECKS AND SERVICES (PMCS), INCLUDING
LUBRICATION INSTRUCTIONS Continued
ITEM TO BE
g. Check heater control box, switches, and light
bulb. Tighten or replace bad switches and bulbs
(WP 0702 00).
h. Start, run, and stop heater (see your -10).
During start cycle, check that switches and light
work properly. Check for increase in blower
speed after ignition.
i. During operation, check for unusual noises.
Check for differences between high and low
j. When stopping heater, check for correct purge
cycle. Verify that indicator light operates
properly. If heater does not operate as specified
above, perform troubleshooting (WP 0086 00).