Check the inverter controller
Switch off the power supply to the unit. Wait until the capacitors are fully discharged and disconnect the com-
pressor from the control board.
Check the resistances at the outputs of the control board with the aid of a digital voltmeter as follows:
Voltmeter
Normal resistance
(+) Red
(-) Black
U
N
¥
(multiple M
W
)
V
W
(+) Red
Error code:
P1
Reason:
Overvoltage or undervoltage protection has tripped
Cause:
n
Faulty supply voltage
n
Refrigerant low or cooling circuit blocked
n
Faulty control board
Check the power supply. Is the supply voltage
correct?
NO
Switch the unit off and have the power supply
checked/corrected.
YES
Check the electrical connections. Are they OK?
NO
Replace the electrical connections.
YES
Switch the power on and put the unit into
standby mode. Measure the voltage on the
board, at contacts "P" and "N". This should be
approx. 310V, 340V or 380V DC. Now start the
unit. The voltage between "P" and "N" should
now be between 220-400V. Is the correct
voltage applied?
NO
Replace the control board.
YES
Check the transformer. Is a defect present?
NO
Replace the control board.
YES
Replace the transformer.
REMKO RVD series
64
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: ......