Fault Finding Chart 4 - Raypak 131 Service Instructions Manual

Fault Finding Chart 1.6 & 1.7
1.6
(1)
Test 19
Is 24 volts present at the
ignition module igniter
terminals?
(1) These tests must be performed within 18
seconds from flame icon being displayed and
the ignition module receiving power. If ignition
is not successful after 18 seconds the ignition
YES
module will lock out and must be reset.
To reset the ignition module turn controller off
by pressing and releasing the „power‟ button,
wait 5 seconds then turn controller on again by
pressing and releasing the „power‟ button.
(1)
Does hot surface igniter
glow?
YES
Does burner ignite?
NO
Is gas valve on/off switch
set to „on‟?
YES
(1)
Test 20
Is there 24 volts at gas
valve?
YES
Is gas isolation valve
turned on?
YES
Is gas available?
YES
Refer to specification table.
Is inlet gas pressure
within specification?
YES
(1)
Refer to gas valve section
Is gas available at gas
valve burner test point?
TM018 Raypak 131 Type A Pool & Spa Heaters REV: A
D.O.I: 8/04/2009
This document is stored and maintained electronically by
NO
B
NO
1.7
YES
Service. All printed copies not bearing this statement in RED are deemed "uncontrolled"
Is a false flame present?
NO
Is flame sensor wiring
connector plugged in?
YES
Is flame sensor touching
any metal component?
NO
Is flame sensor clean?
YES
Are HSI wiring
connectors plugged in?
YES
YES
NO
NO
NO
NO
NO
NO
Are burner injectors
blocked?
26
YES Replace gas valve.
Plug in flame sensor wiring
NO
connector.
Adjust flame rod so as it is not
YES touching any metal
component.
Clean flame sensor or replace
NO
flame sensor/HSI assembly.
Replace ignition module.
Plug in hot surface igniter
NO
wiring connectors.
Faulty hot surface igniter.
Replace flame sensor/HSI
assembly.
1.8
Turn gas valve on/off switch
„on‟.
Replace ignition module.
Turn gas isolation valve on.
Advise customer.
Replace gas valve.
Clean or replace burner
YES
injectors.
NO B