Powrmatic LX Series User Manual

page no. 61 of 68
LX Range Users, Installation & Servicing Instructions Doc Ref M110 issue 1.0 Dec 2020.
NO
NO
NO
Burner in Lockout.
Press the illuminated
amber rocker switch
Is there
230V between
Pactrol controller terminals
CON5 - pin 3 and
Neutral?
YES
Is the
AMBER LED on the
front of the heater
solid.
YES
NO
Is the
AMBER LED on the
front of the heater
pulsing.
NO
No call for heat!
Check controller!
Is there
<2Vdc between
terminals t8 &
t9
Is the exhaust fan
running?
NO
Is there
230V on the WHITE
cable to the terminal t3
of APS1?
Replace
Pactrol!
YES
NO
YES
Pressure Switch stuck
in a closed position
Change A.P.S.1.
YES
Heater in Overheat.
Refer to section 2.6.4
sub-section 2
YES
Check R2R board
see sect 3.1.1
Is
the inpulse tube
connected to the negative
connection of the pressure
switch?
YES
Is there
230V on the YELLOW
cable to the terminal t1 of
APS1?
YES
NO
NO
Continued on
next page
Replace
Pactrol!
YES
NO
Replace
Combustion
Fan!
NO
YES
YES YES
NO
NO
Replace
Gas Valve and
Lead!
Check for break in
VIOLET & WHITE
cables and terminal
block on heater
base.
Is
there
NOW 230V
between contractors
terminals 14
and 15?
NO
Replace
Pactrol!
Has the Gas Solenoid
Valve energised to HIGH FIRE
on start up?
NO
Has
the Gas
Solenoid Valve
energised?
Is there
230V on the YELLOW
cable to the terminal t1
of APS1?
Is there
230V between
Pactrol controller terminals
CON1 - pin 1 and
pin 2?
Is there
24V on the RED cable
to the terminal t3 of
APS2?
YES
YES
Pressure Switch stuck
in a closed position
Change A.P.S.2
Is there
24V on the RED cable
to the terminal t1 of
APS2?
Check R2R board
see sect 3.1.1
NO
Check Modureg
Regulator
Swap terminals
Still not
working?
Check R2R board
see sect 3.1.1
NO
YES
Has the
exhaust fan
gone to full
speed?
3.1 Fault Finding and Status Indication

Powrmatic LX Series Specifications

General

Brand	Powrmatic
Model	LX Series
Category	Heater
Language	English