10
Error Codes
Description
Recommended Corrective Action for
Service Remedy
OK 0 No error
SOFTWARE ERROR 2 There was a problem with the internal
program replace board
EE CRC WRONG 4 The internal data memory malfunction
(EE CRC) replace board
TEMP SENSOR SHORT 1 50 Short circuit in temperature probe T1 Check board or probe
TEMP SENSOR OPEN 1 51 Temperature probe circuit is open T1 Check board or probe
TEMP SENSOR SHORT 2 50 Short circuit in temperature probe T2 Check board or probe
TEMP SENSOR OPEN 2 51 Temperature probe circuit is open T2 Check board or probe
PREFILLING TOO LONG 100 Tank initial filling is taking too long
Water turned off, clogged filter,
Turn equipment off, restore power,
clear error, and proceed
OVER FLOW 103
Tank Overflow Error - May be boiling
1-Hot water tank may be steaming or
boiling due to altitude.
Liquid level probe fault,
Correct temperature set point for
altitude, see chart page-7.
XCHANGED 106
The LLC probes' connectors have been
reversed
Turn equipment off, service probes,
restore power, clear error, and
proceed
TANK WATER LEVEL IS
TOO LOW 107 The tank has been drained beyond the
low level sensor.
Check for Tank leakage, water turned
off.
EMPTY TANK OVERHEAT 114 Temp. probe fault - empty tank is too
hot
Turn equipment off, allow to cool,
service fault, restore power, clear
error, and proceed
TEMP ≥100C 115
Temp.probe fault –
the temp is above water boiling point.
Possible bad probe
Turn equipment off, allow to cool,
service fault, restore power, clear
error, & proceed
WATER BOILING 200 e.g. user set temp 90°C & water boils
at 85°C
Check probe position, check heaters
Also see Error Eode 103-above
HEATER OPEN 201 Heater circuit is open Heater open, high limit thermostat,
SSR SHORTED 202 The Solid State Relay failed
(short circuit) Solid State Relay (SSR) fault
POWER CYCLE NEEDED 254
Machine needs to be power cycled to
write new values to the EEPROM
memory
Power cycle the machine
(Turn OFF-Then ON)
TOUCH SCREEN 255 A problem with the LCD Touch Screen,
touched too long (>2 min)
Power cycle the machine
(Turn OFF-Then ON)
Display Inputs
(See “INPUTS”
Service Screen)
Level probe Low
Level probe High
Temp. Probe 1
Temp. Probe 1
Temp. Probe 2
Temp. Probe 2
SD Card present
Float Switch
215F
158F
Use DISPLY INPUTS screen to assist in error code fault correction.
There are two Temp.Probes shown as Temp Probe1&2 Temp Probe1 is
the Hot Water Tank Temp Probe 2 is the overflow sensor probe
