03/06/2012 Confidential and Proprietary Information
One Place Monitor Panel
Trouble Shooting Water Pump
If Pump Indicator will not Show when Pump Is On, place Voltmeter between pins 4 and 5 of the connector.
Voltage should be 2.5 when Pump is off, and 8 volts when Pump is running. If not test Water Pump Control.
If Pressing Water Pump Switch on Panel does not turn on Water Pump, place Voltmeter between pins 4 and 5 of
the connector. Voltage should momentarily go near Zero when the Pump Switch is pressed
Trouble Shooting Water Heater Switches
Place Voltmeter between pins 3 and 5 of the connector. When Water Heat Elec is On, Voltage should be +12V.
When Water Heat Elec is Off, Voltage should be 0. Momentarily press Water Heat Electric Button to toggle
between On and Off.
Place Voltmeter between pins 1 and 5 of the connector. When Water Heat LP is On, Voltage should be +12V.
When Water Heat LP is Off, Voltage should be 0. Momentarily press Water Heat LP Button to toggle between On
and Off. While Water Heat LP is On, a +12V signal on pin 7, Pilot Out Indicator, will cause the Display to read
“FAIL”.
Trouble Shooting
If Monitor Panel is completely non-operational, Check to make sure
there is between +11Volts and +15Volts between pins 2 and 5.
Trouble Shooting Battery Voltmeters
Place Voltmeter between pins 2 and 5 of the connector. Voltage should be close to House Bat Voltage.
Place Voltmeter between pins 8 and 5 of the connector. Voltage should be close to Chassis Bat Voltage.
View of connector is from Wire Harness contact insertion side
WATER PUMP S WITCH
SYS TEM GR OUN D
WAT ER HEATER LP
COA CH BAT POWER
WATER HEATER ELEC
SYS TEM GR OUN D
PILOT OUT INDICATOR
CHASSIS BAT SE NSE
4 3 2 1
8 5
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