Spare Parts for TQR Small Heaters (16–21kW)

Overview

This guide covers spare parts for Seeley’s TQR Small Heaters (16kW and 21kW), including 1 Stage, 2 Stage, and Modulating models. Parts are grouped by function—burners, fans, controls, panels—so you can find what you need fast. 


Exploded view diagrams are included below to help you correctly identify and match parts easily.

Burner and Ignition Parts

Part NumberDescription
619325Beckett mount – 28kW
619347Beckett burner assembly
619507Injector NG – 1.95mm
632150Beckett mount – 21kW
632152Beckett mount – 16kW
636641Electrode – Flame sense (includes wire)
638692Electrode – Dual Spark probe short
647343Burner access panel – 21kW
647345Burner end plate RH – 16/21kW
647347Burner end plate LH – 16/21kW
647349Burner access panel – 16kW
647351Burner end plate RH – 28kW
647353Burner end plate LH – 28kW
647367Burner access panel – 28kW
648975Burner manifold – 16kW
648977Burner manifold – 21kW
648979Burner manifold – 28kW
GH-266Over-temperature switch – 130°C manual reset

Fan Motors / Fan Wheels

Part NumberDescription
625980Room fan motor – 315W
626086Bracket – Room fan mount
630410Grommet – Motor mount bracket
637129Motor arm – zinc die cast
640020Fan wheel – 9x7 Braemar type
646633Side plate RH (BMQ)
646640Venturi – side plate
GH234Grommet – 17OD x 8ID x 9.5THK

Capacitors

Part NumberDescription
131032Capacitor – 15µF for 21kW
GH-225Capacitor – 4µF for 16kW

Combustion Fan

Part NumberDescription
643621TQR Combustion fan tube Ø63 x 1.6W x 120L 
643764Combustion fan – 1 & 2 Stage
653007Combustion fan – Modulating

Gas Flow Components

Part NumberDescription
619685Flue choke – TQR316/416
619686Flue choke – TQR321/421
619688Flue choke – TQR521
622670Gas inlet elbow – 1 & 2 Stage
622672Gas inlet elbow – Modulating
628363Gas valve – 1 Stage
628377Gas valve – 2 Stage
640440Gas valve – Modulating

ICS PCBs and Transformer

Part NumberDescription
626123Transformer – 240V / 24V, 1.25A
643779ICS PCB – 1 Stage
643786ICS PCB – 2 Stage
643793ICS PCB – Modulating

Over-Temperature Switches (Model-Specific)

Part NumberDescriptionApplicable Model
611518Over-temperature switch – 80°C auto reset16kW
621838Over-temperature switch – 90°C auto reset21kW
628646Over-temperature switch – 130°C auto reset16–21kW

Pressure Switches – 16kW Models

Part NumberPressure RatingPressure TypeApplication
62854755 PaLow2 Stage
630397100 PaHigh1 & 2 Stage

Pressure Switches – 21kW Models

Part NumberPressure RatingPressure TypeApplication
62854965 PaLow2 Stage
628551120 PaHigh1 & 2 Stage

Resistors

Part NumberDescription
643920Resistor – Ceramic 720Ω

Thermistor Parts

Part NumberDescription
613956Bracket Thermistor
651912Thermistor & Bracket (Q series)

Wall Thermostat Parts

Part NumberDescription
094298RPMagIQtouch Control
094694Cable Assy 20M 8 Pin (for MagIQtouch)
500363Bracket Mount Wall Control (MagIQtouch)
862873Cable Test 1M 8 Pin (for MagIQtouch)

Zone Control Parts

Part NumberDescription
626123Transformer 240/24V 1.7A
643830Loom ICS to zone board 240V
671031PCBA zone control ZCB MagIQtouch
862231Lead Assy 8C RJ485 DGH

Panels

Part NumberDescription
626253Baffle – 9x7
629356Inner end shield
629409Panel – Louvered
629421Panel – Standard TG
629738Corner pillar – LH
629740Corner pillar – RH
630021Side plate LH – Fan housing
630045Wrap – 9x7
632070Base panel – TH 15–25
632074Base panel
632087Divider panel – Small fan
632096Divider panel – HX
632104Heat shield
632182Cabinet top
632391Panel – 300D (15–20kW)
632393Panel – 300D
632409Panel – HX TQR16–21
632485Bracket – OT switch outlet
644264Panel – EMP TQ3, 4, TQM6 Small

Exploded View Diagrams

These diagrams visually support the spare parts list and help with identification and servicing.


General Assembly & Panels


Burner & Flue Components



Electrical & Fan Components