6.7.5
Exploded Diagrams Parts Reference List
Boiler Controls Assembly
(Fig. 6.7.1)
GC Number
Code
Description
131
Q28s Main Control PCB
(Q.10S.4.01.00.0)
131
Q28sP Main Control PCB
(Q.10S.4.15.00.0)
132
Control Panel (Q.10S.4.02.00.0)
E72-401
151
Thermal Fuse (C.08.4.21.00.0)
133
Ignitor Cable (Q.10S.4.03.00.0)
Waterway, Condensate & Flue Assembly (Fig. 6.7.2)
GC Number
Code
Description
51
Heat Exchanger
Assy (Q.10S.0.11.00.0)
98
Expansion Vessel (C.08.0.08.00.0 A)
52
Burner Kit (Q.10S.0.10.00.0)
81
Burner Head Gasket
(C.10C.2.00.45.0 A)
72
Ignitor Gasket (C.10C.2.00.52.0 A)
53
Ignitor Kit (Q.10S.0.09.00.0)
62
Condensate Trap Kit (Q.10S.0.16.00.0)
58
Flow/Return Thermistor
(Q.10S.2.08.00.0)
59
Flue Sensor (Q.10S.2.09.00.0)
101
Pressure Sensor (C.10C.2.17.00.0)
57
Flow Thermostat (Q.10S.2.07.00.0)
60
Pump (Q.10S.2.10.00.0)
Air - Gas Assembly (Fig. 6.7.3)
GC Number
Code
Description
111
Combustion Blower (Q.10S.3.01.00.1)
183
Q28s Gas Valve - Mixer Air Gas
Assembly (Q.10S.3.04.00.0)
183
Q28sP Gas Valve - Mixer Air Gas
Assembly (Q.10S.3.05.00.0)
Casing Assembly
(Fig. 6.7.4)
GC Number
Code
Description
2
Cabinet Cover Assy (Q.10S.0.08.00.0)
8
Databadge - NG (Q.10S.1.00.04.0)
8
Databadge - LPG (Q.10S.1.00.04.1)
E73-355
17
Combustion Test Plug (B.04.2.00.49.1)
WD420/3/2007
Chapter 6 : Fault Finding
The Keston Qudos 28s & Qudos 28sP Boilers
Installation & Servicing Instructions
Page : 43
