Vulcan-Hart SG4D service manual Error Codes Probable Cause Solution Problem

ERROR CODES

CODE AND	PROBABLE CAUSE	SOLUTION
PROBLEM
Er01 - ROM check	Internal ROM malfunction	Cycle power.
sum error
Er02 - RAM check	Internal RAM malfunction	Cycle power.
sum error
Er03 - Ambient sensor	Ambient temperature is below 32°F	Check ambient temperature at the control.
error
Er04 - Configuration	Microprocessor malfunction	Cycle Power.
error
Ero5 - EEprom error	Power loss while storing data	Cycle Power.
		· Check the InP1 setup parameter. Verify that
	· Incorrect sensor type	it matches the sensor.
Er06 - Zone 1 A/D		· Check sensor and connections for a
	· Measuring temperature outside
under flow error		reversed or open sensor. If the condition
	the sensor range
		causing the error is resolved, the error will
		clear.
		· Check the InP1 setup parameter. Verify that
		it matches the sensor.
Er07 - Zone 1 A/D	Open sensor	· Check sensor and connections for a
overflow error		reversed or open sensor. If the condition
		causing the error is resolved, the error will
		clear.
Er10 - Stack overflow		· Cycle Power.
	Microprocessor malfunction	· Check sensor and connections for a
error
		reversed or open sensor.
		· Check the InP1 setup parameter. Verify that
Er11 - Open sensor	Open sensor	it matches the sensor.
error		· Check sensor and connections for a
		reversed or open sensor.
	· Incorrect sensor type	· Check the InP1 setup parameter. Verify that
		it matches the sensor.
Er12 - Shorted sensor	· Measuring temperature outside
		· Check sensor and connections for a
	the sensor range
		reversed or open sensor.

FORM 35626 Rev. A (02-08) – 44 – PRINTED IN U.S.A.