Blue Bird M380 2003, Owner'S Manual

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M380 Owner’s Manual__________________________Interior and Exterior Systems Operation – Heating Systems – 4-10
Rev. “F” 4-10-5
4-10.5.3 Burner On
No diagnostic code will be displayed on the main board or the remote panel when the burner is ON
and operating normally. A small red LED will glow near the right hand side of the digital readout on
the main board located on the unit in the upper left hand corner, indicating it is ON.
4-10.5.4 - Service Switch Off
The service switch is switched OFF.
- The burner will shut down if it has been running.
- The diagnostic code, will be displayed.
-
The control board will purge the system with the combustion fan and circulating pump
for two minutes. At the end of the purge period, the system will power down and will
go into a low power consumption mode (10mA max.). There will not be any display or
LED’s lit.
4-10.5.5 – Remote Switch Off
The remote panel is switched OFF.
- The burner will shut down.
- The diagnostic code, will be displayed.
- The control board will purge the system with the combustion fan and the circulating
pump for two minutes.
If the remote switch is put in the ON position, the control board resumes operation and a
small red LED glows near the lower right hand corner of the digit. If there is no diagnostic
code displayed or small LED glowing:
1. Make sure the service switch is ON.
2. Make sure the remote switch cable is plugged into the control box and remote switch.
3. Make sure the remote rocker switch is working.
4. Check the cable continuity.
4-10.5.6 – Heater Cycling (Normal Operation)
The operating aquastat installed on the water jacket has been satisfied.
- The burner will shut down.
- The diagnostic code, will be displayed.
- The control board will purge the burner with the combustion fan for two minutes and
then stop. The circulating pump will run until the last thermostat is satisfied, then will
purge for two minutes and stop.
- To maintain the system temperature the operating aquastat will cycle the burner off at
185°F (85°C) and on again at 150°F (65°C).
-
If the heater cools and fails to resume operation and the diagnostic code
continues to be displayed, the aquastat is faulty or has an open connection.