Honeywell Home VNT5200H1000 User Manual

Problem Possible Cause or
Symptom
Test Procedure Solution
• HRV/ERV
operating
only on high
speed, no
communication
between unit &
wall controls.
• HRV/ERV
supply or
exhaust fan
runs only on
high.
• Dehumidistat of
the wall controls
activated.
• T-3 Timer 20/40/60
mins. activated.
• Short circuit
between G &
R terminals of
REMOTES on
Speed Control™.
• Faulty wire between
control and H/ERV.
• Faulty wall control.
• Disconnect all wall controls
from unit
• Ensure all other wall controls
are not in override mode.
• Inspect the wires to insure not
damage.
• Remove wall control and verify
it at the H/ERV.
• Ensure all wall controls
and Speed Control wire
connections correspond
to their matching letters
• Ensure no nails, staples
or screws are shorting
out the wires.
• Replace LVC PCB
board, wall control and
wires.
• Motor not
functioning.
• Motor failure.
• Failure to the HVC
or LVC PCB board.
• Wire connection or
wire sequence not
corresponding to
wiring diagram.
• Run capacitor failure
• Resistance test: Unplug H/ERV
unit and with a multimeter
– Test the motor resistance
(BLUE & BLACK wires) of the
motor. The range should be
between 33-39 Ohms
– Then proceed to measure the
resistance (BLUE & BROWN
wires) the range should be
between 56-64 Omhs
• If resistance falls within the
above ranges the motor is good.
• If capacitor is swollen or
disgured,itisdenitelybad.
• Check amperage in leads
going to capacitor when in
operation. If capacitor is open,
noamperagewillow.
• Remove from circuit and check
for short circuits or grounds
(use ohmmeter only).
• Replace the HVC or LVC
Board
• Correct faulty connection
or wire sequence to
correspond to the wiring
diagram.
• Replace the run
capacitor and/or Motor
• Yellow blinking
LED on speed
controller.
• Defrost Thermister
not properly
connected to HVC
Controller
• Defrost Thermister
is defective
• Ensure proper connection of
thermister.
• Remove access panel to
expose HVC controller verify
defrost thermister is connected
to the “T2” terminal on HVC
controller.
• Unplug defrost thermister
from HVC controller & check
readings with Ohm meter.
• If defrost thermister
is not connected,
please plug-in on
HVC controller on the
terminals marked “TEMP
SENSOR”.
• Connect the Ohm meter
to red terminal and if
receive no readings
0, replace defrost
thermister.
TrueFRESH™ ERV/HRV Ventilation Systems 69-2480EF—17 37
Troubleshooting (continued)

Honeywell Home VNT5200H1000 Specifications

General

Brand	Honeywell Home
Model	VNT5200H1000
Category	Fan
Language	English