Diagnostic Procedures; Dead Operator Display; Missing Display Screens And Function Buttons; Hvac System Malfunction - NewMar SilverLeaf RV-C Control System Training Manual

Diagnostic Procedures

Dead Operator Display

Verify that DC voltage is present with the correct polarity on the network cable (+DC BLK/WHT , -DC
WHT/BLK Wires) at the display.
1. If correct power is present at the display.
Then, cycle power at the display.
2. If splash screen does not appear briefly.
Then, the display is most probably faculty.
3. If correct power is not present.
Then supply correct power and reexamine display for proper operation.

Missing Display Screens and Function Buttons

Generally, missing display screens and function buttons are caused by system errors generated from
misconnections or node malfunctions.
Ex: Missing Auto Fill Button – Caused by Fresh Tank Sensor Failure.
When missing display screens and buttons occur, determine if there are any systems faults displayed
on the System Diagnostic Screens.
Correct any systems faults and reexamine the display for any missing screens or functions.
If certain screens or buttons are still missing or incorrect then verify that the Monitor Configuration
and any related button function Configurations are correct.

HVAC System Malfunction

The HVAC System is controlled by three different RV-C Nodes depending on the particular function. The
TM-510 Dometic Module controls the three roof Heat Pump/Air Conditioners Zones, the OA-600 Oasis
Module controls the Living Room, Bathroom and Bedroom Furnace Zones and the TM-250 Load Manager
provides the Temperature Sensors for the Outside and Bathroom Temperatures.
 It is important to determine if the fault lies in the SilverLeaf or the Dometic control system.
If the Heat Pumps won't run:
1. Verify that the Zone(s) are calling for heat and that the set points are higher than the Zone(s)
ambient temperature.
If not, then adjust the settings accordingly.
2. Verify that the outside temperature is above 40 degrees F. and that the system display for the
outside temperature also reads above 40 degrees as well.
The heat pumps will not run if the outside temperature is below 40 degrees F.
3. Verify that AC power is available and that the circuit breakers are not tripped.
Reset the breakers if tripped.
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