12.2 Indoor unit fault analysis
Error code:
E0 / F4
Reason:
The control board of the outdoor or indoor unit cannot read the unit memory (EEPROM)
Cause:
n
Installation error
n
Control boards of outdoor unit or indoor unit defective
Switch off voltage, switch on again 2 minutes
later. Is the error still present?
YES
Replace the circuit boards of the outdoor unit
and indoor unit in turn, in order to locate the
defective EEPROM
Error code:
E1
Reason:
The indoor unit does not receive a signal from the outdoor unit within 110 seconds
Cause:
n
Electrical connection not configured correctly
n
Control boards outdoor unit or indoor unit defective
Switch off voltage, switch on again 2 minutes
later. Is the error still present?
YES
Measure the voltage between the “S” and “N”
terminals of the outdoor unit. Is the measured
value positive?
NO
Check electrical connections in the indoor unit.
Are they OK?
YES
YES
Check electrical connections in the outdoor
unit. Are they OK?
Replace the control boards of the indoor unit. Is
the fault remedied?
YES
NO
Is the transformer OK?
Replace the control boards of the outdoor unit
NO
Replace the transformer
YES
Replace the control boards of the outdoor unit.
Is the fault remedied?
NO
Replace the control boards of the indoor unit
57
Содержание RVD 1054 DC
Страница 67: ...Resistance values for probes T1 T2 T3 and T4 K Ohm K Ohm K Ohm K Ohm 67 ...
Страница 68: ...Resistance values for probe T5 K Ohm K Ohm K Ohm K Ohm REMKO RVD series 68 ...
Страница 83: ...No Designation 31 Shut off valve mounting plate 32 Condensate tray heating 33 Crankcase heating 83 ...
Страница 85: ...85 ...
Страница 86: ...REMKO RVD series 86 ...
Страница 87: ......