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Fault Finding - Page 22
SYMPTOM
UNEXPLAINED SHUT-DOWN OF THE APPLIANCE
This appliance contains an Energy Cut-Off Device which reacts the water in the heat exchanger exceeds the anticipated
temperature limit. Although it is intended to guard against failure of the automatic gas valve, it may be triggered inadvertently
by other causes, especially during the summer months when the inlet water temperature is unusually high.
POSSIBLE CAUSE
Failure of the appliance thermostat.
However, if the energy cut-off device reacts to a slowly closing automatic gas valve, the shut down of the appliance may be
accompanied by noises from the heat exchanger and pipework. The pressure relief valve located on top of the water
governor may also have vented water into the case. In this situation it is possible that STEAM will come out of the hot water
tap when turned on.
POSSIBLE CAUSE
Excessive resistance of push rod.
To ensure continued safe operation, we recommend that if the pressure relief valve has operated, it should be
8. SHORT SPARE PARTS LIST - Page 22
Key No
G.C. Part No.
1
284 957
11
285 907
14
285 910
12
285 908
13
285 909
40
285 513
43
285 678
54
285 930
53
285 929
52
397 688
55
285 931
58
285 679
44
393 492
59
285 934
60
285 935
61
285 936
83
285 944
114
285 691
62
285 937
78
285 942
IMPORTANT NOTE
replaced immediately
Description.
Seal Pack - Chassis to Flue Terminal
Case Assembly
Case Seal - Self Adhesive Rubber
Viewing Aperture Seal
Viewing Aperture Glass
InjectorN.G.1.2mm
Flame Safety Device Assembly
Thermocouple - Special
Thermocouple Connection - Special
Interrupter Insert
Electrode Assembly
Pilot Injector - Special
PiezoUnit-RV1174
Igniter 'IGN' Button
Starter 'ON' Button Assembly
Stop 'OFF' Button Assembly
Diaphragm Assembly
Thermostat Assembly
Energy Cut-Off Device Assembly - Includes Grommets
Pressure Relief Valve Assembly
SOLUTION
Repair or replace.
SOLUTION
Exchange push rod and seals. Lubricate with Dow Corning III
silicone grease and ensure free movement.
No. Off.
Makers Part No.
1
31/1 2299
1
10/17543
1
10/1 7501
1
1 0/1 7499
1
10/17500
14
19/12196
1
10/13477
1
10/17461
1
10/1 7790
1
10/1 3846
1
10/1 7493
1
19/1 2690
1
10/11935
1
10/1 7507
1
10/17540
1
10/1 7541
1
10/1 7534
1
10/13486
1
10/1 7792
1
10/17866
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