Specifications

TM040 16, 18 & 20L Continuous Flow Gas Water Heater Service Instructions
D.O.I: 2/06/2009
This document is stored and maintained electronically by Service. All printed copies not bearing this statement in RED are deemed “uncontrolled”
21
Operational Flow Charts
Plug In
Power On
Operation Flow Chart 1
1
Gas type control
data failure
Communication
problem between
remote controller
and the heater
Fan motor current
detection failure
G.I.S.V control
failure
82 (H) Flashing 76 Flashing
79 (G) Flashing 71 (C) Flashing
Error code cleared Isolate Power
Remote controller
switched on
Remote controller
switched off
Remote controller
display off
Remote controller
display on
On/Off lamp Off
On/Off lamp On
Fan On
Fan Off
(10 seconds later)
5
14 (E) Flashing
Over heat limiter
failure
NO
YES
B
Bath fill
operation
Water Flow Sensor off
Hot water tap closed
Hot water tap open
2
3
YES
24 (C) FlashingNO
20 seconds later
Fan On
Fan On
YES
4
F F1
5
31 (E) Flashing
YES
32 (E) Flashing
6
33 (E) Flashing
7
16
34 (E) Flashing
4 61 (B) FlashingNO
5 seconds later
NO
9
72 (D) FlashingYES
5 seconds later
Leakage >
than 0.1uA
P.G.F.R Valve on
10
1
2
YES
NO
Initial check
normal?
Water flow sensor
on?
Inlet temp > 60ºC
or set temp?
Inlet temp ≤ 58ºC
or 2ºC below set
temp?
NO
Max & Min
buttons off?
NO
Burner does not
operate
YES
Thermistors
normal?
Fan speed
normal?
Ambient Air
Hot Water Outlet
Water Inlet
NO
Heat Exchanger
False flame
detected?
A
8
G.I.S.V (SVO) on
Igniter on11
P.G.F.R Valve off
S.V.1 (SV1) on12
S.V. 2 (SV2) on13
P.G.F.R Valve on9
3
Flame detected?
YES
3 seconds later
Leakage >
than 0.1uA
14
G.I.S.V (SVO) off
S.V. 1 (SV1) off
S.V. 2 (SV2) off
P.G.F.R Valve off
I.U.I Off
First ignition
trial?
NO
P.G.F.R Valve off
G.I.S.V (SVO) off
S.V. 1 (SV1) off
S.V. 2 (SV2) off
Igniter off
YES
A
11 (A) Flashing
NO
YES
E
Note: Refer to page 20 for details on interpreting chart abbreviations. Refer to page 27 for details on interpreting LED flashing pattern.