Compact Condens : A1003043 - 664Y7200 • A
en
38
EN
FR
NL
ES
IT
DE
PL
RU
LOCKING CODES
Codes
Description of the fault
Solution for the fault
E 80
Return > Supply
: Return temperature is higher than supply temperature.
Confirm water flows in boiler return and out boiler supply.
E 81
Sensor Drift
: Supply and return temperatures are not equal.
1. Check water is flowing through boiler.
2. Wait a few minutes for the water to equalise the temperature, the boiler will automatically reset once temperatures be-
come equal.
3. If boiler doesn't reset, check the NTC's and check the wire harness, replace if necessary.
E 87
Overtemp lockout
: An external boiler limit has opened.
1. Correct condition which caused limit to open, then reset boiler.
2. The boiler needs to be reset once external limit closes.
E 89
Incorrect Setting
: A parameter setting is outside the settings range.
1. Review CH & DHW settings and correct as necessary.
2. The boiler will automatically reset once corrected.
E 90
Firmware Mismatch
: Control module and display firmware versions are incompatible.
One or several components are not compatible with the system. Replace mismatched component(s).
E 93
Outdoor Sensor Shorted
: A short circuit has been detected in the outdoor tempera-
ture sensor circuit.
1. Check outdoor temperature sensor and wiring for a short circuit.
2. If necessary replace the sensor, or the wire harness.
3. After fixing the problem reset the appliance and resume normal operation.
E 94
Internal Display Fault
: Display memory error
Turn unit off and on to resume normal operation.
E 95
Supply Sensor Error
: Supply sensor reading is invalid
1. Check wiring between display and control module.
2. If necessary replace the sensor, or the wire harness.
3. After fixing the problem reset the appliance and resume normal operation.
E 96
Outdoor Sensor Open
: An open circuit has been detected in the outdoor tempera-
ture sensor circuit.
1. Check outdoor temperature sensor and wiring for an open circuit.
2. If necessary replace the sensor, or the wire harness.
3. After fixing the problem reset the appliance and resume normal operation.
E 99
Controller Bus Error
: Communication between boiler display and control module has
been lost.
1. Check wiring between components.
2. Boiler will automatically reset once repaired.
