DFR Code 200
DFR CODE FLOWCHART: DEFINITIONS / MCB LED Blinks
DFR Flowchart For #: 200
Solution:
__ G1_______
Consult with electrician
to fix AC input rail
voltage.
Note: The AC rail voltage with a load should never drop greater than a 5 volt deferential comparing it with no load. There are many equations to measure for low rail voltage.
Example: If you take a person that weighs 200 Lbs at the speed of 5 MPH and the voltage drops greater than a 5 volt deferential, the wall voltage is not adequate
and can cause
intermittent 200 DFR
codes.
__ G2_______
Replace EMI Filter
DFR Code = 200
DC Link Bus Under Voltage / 10 Blinks
Possible Causes:
(1)Low AC voltage from wall.
(2)Low AC voltage from EMI filter.
(3)Faulty MCB.
Start
Turn the unit power off at the
switch.
Measure AC voltage at the wall
outlet.
The AC voltage should
be between:
95 to 125vac for a 110v unit
185 to 250vac for a 220v unit
Was the AC voltage
within the specs
listed above?
Yes
Check AC voltage coming out of
No
G1
Engage Motor Test Mode
(Press ‘8’ after engaging
Maintenance Mode)
Increase the speed to 5 MPH or
greater.
Measure AC input voltage with a
load
The input AC voltage should be less than a 5 volt deferential from the original AC voltage that was taken with out a load
Was the voltage
greater than a 5 voltNo deferential?
__ G3_______
Replace MCB
the EMI filter
Yes
G1
G3
Was the AC voltage within the specs listed above?
Yes
Engage Maintenance Mode (0, 2, start simultaneously)
No
G2
End
61Service Manual – Treadmills:
