TM018 Raypak 131 Type A Pool & Spa Heaters REV: A
D.O.I: 8/04/2009
This document is stored and maintained electronically by
Service. All printed copies not bearing this statement in RED are deemed “uncontrolled”
34
Fault Finding Chart 9
Is noise a creaking or
cracking sound?
NO
9
Is noise a screaming or
whining sound?
NO
YES
YES
5
Expansion and contraction
noise associated with heating.
Normal operation.
Is noise from burner i.e
harsh flame?
Is inlet gas pressure
within specification?
4.1
YES
YES
Advise customer.
NO
Is noise from nearby
equipment i.e pool pump?
NO
YES
Look for loose component or
screws.
Screaming or whining noises are
associated with low water flow.
NO
Flow Chart 4.1 is
part of flow chart 1.8
Test Procedures
Fault Finding Tests 1
– 2
Test 1
Test 2
Ensure power point is switched on and
using a multimeter on the AC voltage
scale, measure between the 3 pin sockets
on the power point.
Normal reading should be:
Active to Neutral
– 240 Volts AC.
Active to Earth
– 240 Volts AC.
Neutral to Earth
– 0 Volts.
Disconnect the grey wire from relay 2 and
using a multimeter on the ohms scale,
measure between the orange wire relay
terminal and the disconnected grey wire
relay terminal on relay 2.
Normal reading should be 0 ohms
(N/C contacts 5 and 1 closed).
