Friedrich VERT-I-PAK VHA18K34RTQ User Manual

43 PB
COMPONENT TESTING
Check Evaporator Blower Motor and Control Board
FIGURE 714 (INDOOR BLOWER MOTOR TESTING)
Check for 230
VAC at
L1 to
HI or LI
Trace Wiring
back to
Contactor, IMR
Relay and
Safety Relay
NO
Repair Wiring
or replace
relays/
contactor as
required
Check for 10
VDC at green
and brown
wire at pins B
and D
Remove
harness and
jumper pins C
and D
Does Fan run?
Replace Motor
controller
board
Engage fan in either High or low
speed
Pins B to C
Low speed 7.84 VDC +- 0.05
High Speed 9.00 VDC +- 0.05
Replace FanNO
Check for 230
VAC at L and N
on ID Motor
controller
board
Replace motor
control board
NO
YES
YES
YES
NO

Friedrich VERT-I-PAK VHA18K34RTQ Specifications

General

Brand	Friedrich
Model	VERT-I-PAK VHA18K34RTQ
Category	Heat Pump
Language	English