TM 10--3510--221--10
0020 00--2
HEATING SYSTEM TROUBLESHOOTING --
Continued
0020 00
BURNER BLOWER INLET OR OUTLET PRESSURE LO -- Continued
8.
Observe operator panel A display (WP 0008 00, Figure 2, 6) for approximately 5 minutes.
Does another ”BURNER BLWR INLET PRESS LO” message appear?
YES Notify Maintenance.
NO Return to normal operation.
FUEL PRESSURE LO OR FUEL PUMP WILL NOT PRIME
1.
Lift up on PRIME PUMP switch (WP 0008 00, Figure 4, 1) and listen for burner blower to come on.
Does burner blower come on?
YES Go to step 3.
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 fuel supply.
Is fuel supply adequate?
YES Go to step 4.
NO Replenish fuel supply. Go to step 7.
4.
Check hose connections at fuel source.
Are hoses properly connected?
YES Go to step 5
NO Properly connect hoses. Go to step 7.
5.
Check quick--connect hose connections at heater.
Are quick--connects fully seated?
YES Go to step 6
NO Properly connect hoses. Go to step 7.
6.
Check entire length of fuel hoses for kinks or other obstruction.
Are hoses kinked or obstructed?
YES Remove kink(s) or obstruction(s) from hoses. Go to step 7.
NO Go to step 7.
7.
Lift up on PRIME PUMP switch (WP 0008 00, Figure 4, 1) and observe fuel pump pressure gage (2)
for approximately 2 minutes.
Does fuel pressure remain steady at or above 135 psi for last 30 seconds of priming?
YES Go to step 8.
NO Notify Maintenance.
8.
At heater control enclosure press FP300 RESET switch (4).
