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ID03
EMB EEPROM fault (1)
Reset the fault, cycle power on and off, if the fault reappears, the EMB–EEPROM is
corrupted.
ID04
Internal fault (gv1)
Reset the fault, cycle power on and off, if the fault reappears, the EMB–EEPROM is
corrupted.
ID05
Internal fault (gv2)
Reset the fault, cycle power on and off, if the fault reappears, the EMB–EEPROM is
corrupted.
ID06
Internal fault (gv3)
Reset the fault, cycle power on and off, if the fault reappears, the EMB–EEPROM is
corrupted.
ID09
Fan speed error
Cycle power off, check the four-wire fan connection; wires and each end at
connectors. If all ok, cycle power back on and if fan Speed error reappears, replace
fan.
ID11
Flame proof indicated without flame present
Cycle power off, check Igniter, Ignition cable and cable ends, if moisture present,
dry thoroughly. Cycle power back on.
ID13
Low voltage to appliance
Check voltage - this fault occurs when the supply voltage is more than 10% less
than rated supply.
ID14
High voltage to appliance
Check voltage - this fault occurs when the supply voltage is more than 15% greater
than rated supply.
ID16 A
External sensor (T6) fault (not connected or open status)
Check the condition of the connectors and wires from the card edge connector
at the board to the terminal strip to the external sensor in the piping or Low Loss
Header.
ID16 B
External sensor (T6) fault (short circuit status)
Take an OHM reading on the wires from the external sensor in the piping or low
lass header - compare it to the chart on page 47 replace if out of range.
ID19 A
Tank sensor (T3) fault (not connected or open status)
Check the condition of the connectors and wires from the card edge connector at
the board to the terminal strip to the storage tank sensor.
ID19 B
Tank sensor (T3) fault (short circuit status)
Take an OHM reading on the wires from the storage tank sensor - compare it to the
chart on page 47 replace if out of range.
ID20 A
Outdoor sensor (T4) fault (not connected or open status)
Check the condition of the connectors and wires from the card edge connector at
the board to the terminal strip to the outdoor air sensor.
ID20 B
Outdoor sensor (T4) fault (short circuit status)
Take an OHM reading on the wires from the outdoor air sensor - compare it to the
chart on page 47 replace if out of range.
ID87
Actual fan speed is lower than specified fan speed, during speed up. The appliance is waiting to allow the fan time to reach the required rpm, if it does
not achieve it in 30 seconds, ID88 will become the new fault code.
ID88
Actual fan speed did not reach required rpm in the time allotted.
If the actual fan speed is more than +/- parameter F20 rpm off the set fan speed
after pre-purge time ID88 is shown. This fault will correct itself after the correct fan
speed is achieved.
ID89
T1.1-T1.2
∆
T fault
The
∆
T on the duplex outlet sensor (T1.1 & T1.2) is greater than 18˚F. Test both
sensors against the actual temperature and OHMs as shown in the chart on page
47, replace as required.
ID95
EEPROM key blank
EEPROM key is blank with no data
ID97
EEPROM key missing
EEPROM key is not connected or not communicating
P04*
No water flow from the pump
Check for pump electrical issues i.e. no power to the pump, pump motor is seized,
pump is constantly powered and running.
P05*
Reduced water flow through appliance
Check for partially closed valves, pump impeller fouling etc. Appliance is operating
at a reduced BTU capacity to avoid heat exchanger damage.
S13
Additional safety fault
Check the status of the additional safety input switch when call for heat is
established, and P7 time elapsed, and continuously thereafter during a burn cycle.
W01*
Maximum water pressure exceeded
Water pressure too high (within 10% of pressure relief valve rating), confirm cause
and correct. Unit is operating at a reduced BTU capacity to try and avoid the relief
valve opening.
W04*
Water pressure is less than minimum setting
Water pressure too low (within 10% of minimum pressure required), confirm
cause and correct. Unit is operating at a reduced BTU capacity to try and avoid any
damage to the heat exchanger.
Servicing - continued
Table 7.2 BCB Soft Lock Out (SLO) Codes - Continued
Code
Cause
Recommended Action