TM 10--3510--221--10
0020 00--1
HEATING SYSTEM TROUBLESHOOTING
0020 00
THIS WORK PACKAGE COVERS:
Troubleshooting Observed or Displayed Faults on Heating System
INITIAL SETUP:
Maintenance Level
Materials/Parts
Operator
BURNER BLOWER INLET OR OUTLET PRESSURE LO
1.
Observe operator panel A display (WP 0008 00, Figure 2, 6).
Is ”20 HP INVERTER FAULT” message also displayed?
YES Go to 20 HP INVERTER FAULT (WP 0019 00).
NO Go to step 2.
2.
Observe operation of still condenser fan.
Is condenser fan on?
YES Go to step 3.
NO Go to 20 HP INVERTER FAULT (WP 0019 00).
3.
Check for debris blocking burner blower assembly.
Is screen blocked?
YES Remove debris. Go to step 6.
NO Go to step 4.
4.
Remove and inspect burner blower inlet screen (WP 0024 00).
Is inlet screen clean?
YES Go to step 5.
NO Clean and reinstall inlet screen. Go to step 6.
5.
Check adjustment on inlet cover (WP 0013 00).
Is inlet cover set properly?
YES Go to step 6.
NO Adjust inlet cover as necessary. Go to step 6.
6.
At heater control enclosure press FP300 RESET switch (WP 0008 00, Figure 4, 4).
7.
Wait about 30 seconds then observe heater operation.
Does burner blower come on?
YES Go to step 8.
NO Notify Maintenance.
