Control Stop - And Fault Memory - REMEHA GAS 210-80 ECO PRO Technical Information

11. Faults
Fault
Description
code
Flow temperature sensor
E:33
open circuit
Fan fault
E:34
Flow and return swopped
E:35
Flame loss occurs 5 times
E:36
Communication fault with SU
board
E:37
Communication fault with
SCU board (optional)
E:38
Shutdown input in locked-out
mode
E:39
table 16
Fault codes

11.5 Control stop - and fault memory

54
Possible cause
• Bad connection
• Defective sensor
• Sensor not correctly mounted
• Bad connection
• Defective fan
• Defective sensor
• W rong flow direction
• Bad sensor connection
• Sensor not correctly mounted
• Ionisation current drops out
• Bad connection
• Bad connection
• External cause
• Incorrectly set parameter
• Bad connection
The boiler control unit has a control stop and fault memory . This
stores the last 16 control stops and the last 16 faults that have
occurred.
With each fault, the following data is saved:
- B or E = control stop or fault code
- 
= Number of times that the fault has occurred
in succession
- = Burner operating hours since time of fault
r
h
- 5t = status
- 5u = sub status
- t1 = flow temperature [°C];
- t2 = return temperature [°C];
- t4 = outside temperature [°C];
- t6 = boiler block temperature [°C];
- 5p = internal set point [°C];
- fl = ionisation current [uA];
- f = fan rotation speed [rpm];
- pr = water pressure [mbar];
- p = relative output supplied [%];
Check/solution
• Check the cable bundle
• Replace the sensor if necessary
• Check if sensor is correctly mounted
• Fault in fan cabling
• Defect in fan
• (Too) much draught over boiler, so that
the fan starts to rotate
Check:
- flow direction
- temperature sensors for deviations
• Replace the sensor if necessary
• Inlet gas pressure sufficient? Inlet gas
pressure controller in order?
• Correct gas block operation and
adjustment?
• Blockage in air supply or flue gas
discharge?
• Flue gas circulation, check flue gas
system for installation faults and the
heat exchanger for possible leaks
• Check SU board is correctly inserted in
the connector on the PCU-01
• Check the cable bundle
• Remove external cause
• Check the parameter
• Check the cable bundle
GAS 210 ECO PRO
114494-190310