Solar 4 RVs' Buyer Guides: Empowering Your Solar Choices Wakespeed WS500 Error Codes

This is the list of WS500 error codes from the Wakespeed Communications and Configuration Guide version 2.5.2/3 June 11, 2024. It is provided solely to make it easier and quicker for WS500 users to lookup the error code.

If there is a FAULTED status, the variable errorCode will contain one of these...

Note at this time, only one error code is retained. Multi-faults will only show the last one in the checking tree.
Errors with + 0x8000 on them will cause the regulator to re-start, others will freeze the regulator.
Errors with a +0x4000 will be optionally treated as a 'promiscuous' hard fault.
If the regulator is configured in 'promiscuous Mode' these faults will be treated with an auto-restart, just like 0x8000
Note combinations like 10, and 11 are not used. Because one cannot flash out 0's, and kind of hard to tell if 11 is a 1+1, or a real slow 2+0
The first digit of the error code will be flashed, then a pause followed by the second digit. After a longer pause the sequence of flashes is repeated.

Error Name	Code	Flag	Description
FC_LOOP_BAT_TEMP	12	0x4000U	Battery Temperature greatly exceeded configured upper limit.
FC_LOOP_BAT_HIGHV	13	0x4000U	Battery Voltage greatly exceeded upper limit, measured by VBat+
FC_LOOP_BAT_LOWV	14	0x8000U	Battery Voltage too low to operate as measured on VBat+. Damaged or missing sensing wire or fuse? (or engine not started!)
FC_LOOP_BAT_MAXV	15	0x4000U	Voltage at Vbat+ exceeded Max Bat Volts as defined by $CPB:
FC_LOOP_SHORTED_BAT_TEMP	16	0x4000U	Battery Temperature is shorted (Defective)
FC_LOOP_ALT_TEMP	21	0x4000U	Alternator Temperature greatly exceeded configured upper limit.
FC_LOOP_ALT_TEMP_RAMP	24	0x4000U	Alternator Temperature greatly exceeded configured upper limit. (2nd temp reached / exceeded while ramping - this can NOT be right, to reach target while ramping means way too risky.)
FC_LOOP_ALT_TEMP_ROC	25		Alt Temp is rising REALLY fast, damaged?
INTERNAL ERROR	31..39
FC_SYS_FET_TEMP	41		Internal Field FET temperature exceed limit.
FC_SYS_REQIRED_SENSOR	42		A 'Required' sensor is missing, and we are configured to FAULT out.
FC_NO_VALT_VOLTAGE	43	0x8000U	No voltage has been sensed on the VAlt+ line, blown fuse?
FC_EXCESSIVE_VALT_OFFSET	44	0x4000U	There is excessive voltage offset between VAlt+ and VBat+ sense lines - 2.5v. (Not checked in "Split" voltage systems)
FC_LOOP_VALT_MAXV	45	0x4000U	Voltage at VAlt+ exceeded Max Bat Volts (Plus additional allowance for IR drop) as defined by $CPB:
FC_LOOP_ALT_HIGHV	46	0x4000U	Voltage greatly exceeded expected upper limit battery limit as measured at VAlt+
FC_CAN_BATTERY_DISCONNECTED	51	0x4000U	Received a generic CAN message that the battery charging bus has been disconnected.
FC_CAN_BATTERY_HVL_DISCONNECTED	52	0x4000U	A CAN command has been received asking for the battery bus to be disconnected due to High Voltage. (Note that depending on the BMS, other alarms may trigger this same fault, ala, high charge current)
FC_LOG_BATTINST	53		Battery Instance number is out of range (needs to be from 1..100)
FC_TOO_MANY_AGGERGATION	54		Too many different BMS's are asking to be aggregated.
FC_CAN_AEBUS_FAULTED	55	0x8000U	AEBus device (Discovery battery) has send a warning or fault status. As there is no fore-warning of a disconnect, treat all warnings as a pending disconnect and fault. But then do auto-restart to see if it clears.
FC_TOO_MANY_VEREG_DEVICE	56		Too many VEreg (Victron) devices present to track
FC_CAN_BATTERY_LVL_DISCONNECTED	57	0x4000U	A CAN command has been received asking for the battery bus to be disconnected due to Low Voltage.
FC_CAN_BATTERY_HC_DISCONNECTED	58	0x4000U	A CAN command has been received asking for the battery bus to be disconnected due to High Current.
FC_CAN_BATTERY_HT_DISCONNECTED	59	0x4000U	A CAN command has been received asking for the battery bus to be disconnected due to High Battery Temperature.
FC_CAN_BATTERY_LT_DISCONNECTED	61	0x4000U	A CAN command has been received asking for the battery bus to be disconnected due to Low Battery Temperature.
FC_CAN_BATTERY_HVL_LIMIT	62	0x8000U	A CAN status has been received that the battery has reached its upper limit, but not yet disconnecting. Charging should stop.
INTERNAL ERROR	71..79
FC_DCDC_HS_OVP	82	0x4000U	Primary Battery (HS) of DC-DC converter Over-voltage trip
FC_DCDC_HS_UVP	83	0x8000U	Primary Battery (HS) of DC-DC converter Under-voltage trip
FC_DCDC_LS_OVP	84	0x4000U	Secondary Battery (LS) of DC-DC converter Over-voltage trip
FC_DCDC_LS _UVP	85	0x8000U	Secondary Battery (LS) of DC-DC converter Under-voltage trip
FC_DCDC_OVER_TEMP	86	0x8000U	DCDC Convert too hot.
FC_DCDC_MISCOFIG	87		A configuration value has exceeded the selected DC-DC converter limits.
FC_DCDC_MULTICONTROLLER	88		More than one device seems to be trying to control the DCDC converter.
FC_DCDC_MISSMATCH	89		Attached DCDC Converter is not same as make/model specified

The 9x codes are special ones, they do not cause a true FAULT, but indicate some altered condition and mode of operation. Mostly these are used to support DM_RV (aka, ISO Diag) and CAN connected monitors such as the Victron Cerbo. At present these codes will only be used over ISO_DIAG (CAN), will NOT cause a Regulator hard fault, and will only be issued if the attached RBM is listed as a BMS or higher priority per RV-C (120 or above).

Error name	Code	Flag	Description
FC_CAN_BMS_SYNC_LOST	91		Used to signal that an existing BMS sync has been lost and we are in an alt mode (ala, Gethome)
FC_FORCED_TO_IDLE	92		Use to indicate that the reg has been forced into Idle via perhaps the Feature-in line, or some RPM based trigger.
FC_DVCC_TIMEOUT	93		Device has lost the DVCC lock, reverting back to non-DVCC mode of operation.
INTERNAL ERROR	1xx
INTERNAL_DCDC_ERRORS	21x		Note, the list of DCDC errors was removed from the document, but have been left here
FC_DCDC_HS_OVP	212	0x4000U	Primary Battery (HS) of DC-DC converter Over-voltage trip
FC_DCDC_HS_UVP	213	0x8000U	Primary Battery (HS) of DC-DC converter Under-voltage trip
FC_DCDC_LS_OVP	214	0x4000U	Secondary Battery (LS) of DC-DC converter Over-voltage trip
FC_DCDC_LS_UVP	215	0x8000U	Secondary Battery (LS) of DC-DC converter Under-voltage trip
FC_DCDC_OVER_TEMP	216	0x8000U	DCDC Convert too hot.
FC_DCDC_MISCOFIG	217		A configuration value has exceeded the selected DC-DC converter limit
FC_DCDC_MULTICONTROLLER	218		More than one device seems to be trying to control the DCDC converter.