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Service Manual – Treadmills: E-Series x P-Series
60
DFR Code 800 & 400
Start
Turn the power off then back on at
the switch.
Engage Motor Test Mode.
Incline the unit to max elevation.
Stand at the highest point of the
incline and push body weight
back.
Does
the running belt slide
smoothly across
deck?
Yes
No
E1
Decline unit back to zero percent
in test mode.
Increase the speed to 2 MPH and
attempt to push the
belt back faster that the
commanded speed.
Does the
running belt hold strong
to it’s commanded
speed?
E1
E2
No
Start
Turn the power off then back on at
the switch.
Check AC LED on MCB to see if
it’s lit.
Does the AC LED off?
F1
Yes
No
Check I/O cable (display cable) at
the display and MCB for bad
connection.
Was the I/O cable
(display cable) making a
good connection?
F2
No
Check I/O cable (display cable)
pinched or damaged wires.
Yes
Was the I/O cable
(display cable) pinched or
damagd?
F3
F4
No
Yes
End End
DFR Code = 800
Phase Over Current / 12 Blinks
Possible Causes:
(1) Worn running belt.
(2) Dirty running belt
(3) Faulty MCB.
DFR Code = 400
Illegal Speed Command / 11 Blinks
Possible Causes:
(1) Pinched or damaged display cable.
(2) Bad wire connection to drive system
(3) Faulty MCB.
Solution:
__ E1_______
Clean the under the
running belt and re-test
Note: If the problem
continues replace the
running belt.
__ E2_______
Replace MCB
Note: Make sure there
are no objects or
moveable parts that
may cause damage to
the wire.
___________________
Solution:
__ F1________
Replace MCB
Note: If AC LED is on
and you get this error,
replace the MCB.
__ F2________
Reconnect display
cable and re-test
Note: If AC LED is not
on check the I/O
interface cable and
connection. A speed
command with the relay
off can cause this error.
__ F3________
Replace I/O Interface
cable (Display Cable)
__ F4________
Replace I/O Interface
cable (Display Cable)
and if the error still
occurs replace the MCB
DFR CODE FLOWCHART: DEFINITIONS / MCB LED Blinks
DFR Flowchart For #: 800 & 400