HOUNO CM ovens - Manual (Page 29)

29
ERROR CODES
The HOUNÖ ovens have an automatic error detecting system. In the event of malfunctioning of the
oven or faulty connection, error codes appear in the display. This means that any defects are
specified immediately and can be remedied quickly and efficiently, which again means fewer
interruptions of operation and thus fewer service calls. The following list of error codes provides
you with a brief description of each error code and an indication as to how the fault can be
remedied.
On computer models (CMC/CVC), a message appears at the bottom of the display and an alarm is
heard.
At the present time, error codes 2 and 12 are not in use. Furthermore, error codes 1, 9, 11 and 13 are
not in use on the CVC model.
: Program switch defective
Possible cause: The program switch has been turned beyond stop position.
Remedy: Replace computer.
: Faulty connection
Remedy: Reconnect terminals 2 and 21 in plug S2.
: Oven chamber above 305°C
Possible cause: The temperature circuit breaker for the oven compartment has gone. The oven
cannot be operated until the defect has been remedied.
Remedy: Reconnect the thermostat which is located in a hollow under the oven on the left-hand
side of the front panel, by pressing the red button gently. Note that the thermostat may be
disconnected during transport.
: Fan is hot
The temperature circuit breaker in the fan motor has gone.
Possible cause:
- Breaking of phase / fuses
- Fan blocked by incorrectly fitted filter housing
- Fan rotating in the wrong direction
The oven cannot be operated until the defect has been remedied.
Remedy: Check fuses in switchboard. Check that the filter housing has been correctly fitted on the
pins. Let the oven cool for approx. 20-30 min., then restart it.
Check that the direction of rotation of the fan is counter-clockwise (looking at the fan from inside
the oven compartment).
: Drain temperature above 75 °C
The drain temperature is normally kept below 60°C by means of the built-in condensation nozzle. If
the drain temperature exceeds 75 °C for more than 5 min., error code 6 will appear for a short
moment at the beginning and at the end of the operating mode.
Possible cause: Dirt in solenoid valve, nozzle or dirt filter, hot water connected or defective sensor
for condensation. The oven can be operated even if the defect is not remedied.
Remedy: Check that the oven is connected to cold water. Clean solenoid valve, nozzle or filter.