18
VÄRMEBARONEN EP31 300
At the same time as one of the indicators, red, yellow or
green, is flashing, the bottom line of the window alternates
between:
Į-to MENU SELECTOR!
and
PRESS OK FOR INFO!
When
is held down, the cause of the flashing indicator is
shown.
Red indicator flashing - Alarm
Buzzer alarm via output pt 25 in ”Control circuit”.
Requires action and manual reset.
R1
TEMPsensor! J1
Cause: Short-circuit, interruption or not connected.
Pt100 boiler temperature sensor (option) J1, point 31 in
”Control circuit!”.
Remedy: Check, replace.
R2
TEMPsensor! J2
Cause: Short-circuit, interruption or not connected.
Pt100 temperature sensor (option) J2, point 32 in ”Control
circuit”.
Remedy: Check, replace.
R3
TEMPsensor! J12
Cause: Short-circuit, interruption or not connected.
Boiler temperature sensor J12, point 27 in ”Control circuit”.
Remedy: Check, replace.
R4
TEMPsensor! J14*J9/3
Cause: Short-circuit, interruption or not connected.
Temperature sensor, J14+J9/3, option, in secondary circuit
at secondary control, point 29 in ”Control circuit”.
Remedy: Check, replace.
R5
TEMPsensor! J13
Cause: Short-circuit, interruption or not connected.
Temperature sensor cooling fan, option, J13, point 28 in
”Control circuit”.
Remedy: Check, replace.
Alarm - warning - information
R6
TEMPsensor! J3
Included only in boiler with outdoor temperature compensator.
Cause: Short-circuit, interruption or not connected.
Outdoor temperature sensor, J3, point 35 in ”Control circuit”.
Remedy: Check, replace.
R7
TEMP SENS MAINBOARD!
Cause: Short-circuit or interruption.
Temperature sensor on power circuit board.
Remedy: Check, replace power circuit board
R8
TEMP SENS PANEL!
Cause: Short-circuit or interruption.
Temperature sensor on panel circuit board.
Remedy: Check, replace panel circuit board
R9
HIGH PE-CURRENT,PEC!
Cause: The PEC value is higher than the break limit set:
Remedy: Check Current PEC value in the Operating menu
Highest PEC value, Information menu
PEC alarm limit in Installation menu.
If the current PEC value is higher than the alarm limit when
no power is connected, there is no fault in the boiler.
The alarm limit should then be raised approximately 50 above
the highest measured PEC value. The external earth fault
should be identified and remedied.
If the current PEC value is lower than the alarm limit, the fault
may be in the boiler. Check:
- Acknowledge the alarm by cutting the control voltage for
10 seconds.
- Increase boiler power while reading off the current earth
fault value.
- Check the insulation of each immersion heater in the power
group issuing the PEC alarm to find out which immersion
heater is faulty.
- If the boiler works normally when power is connected without
tripping a PEC alarm, the earth fault is external.
R10
HIGH TEMP,MAINBOARD!
Cause: High temperature of power circuit board.
Remedy: Check the cause. Highest permitted ambient
temperature is
≤
30°C.
