P/N 474131 Rev. M 8/2020 MasterTemp Pool and Spa Heater
65
MASTERTEMP REPLACEMENT PARTS
2
6
8
9
10
3
4
18
11
14/15
17
1
5
16
REPAIR PARTS – ELECTRICAL SYSTEM
Model
Key Part 200NA 300NA 400NA
No. Description Qty. 200LP 300LP 400LP
1Heater Display Cover 1 42002-0035 42002-0035 42002-0035
2Igniter Bracket 1 42001-0030S 42001-0030S 42001-0030S
3 Igniter/Igniter Gasket Kit Incl. Key Nos.3and 4) 1 77707-0054 77707-0054 77707-0054
4Igniter Gasket 1 42001-0066S 42001-0066S 42001-0066S
5 Automatic Gas ShutoffSwitch (AGS)142002-0025S 42002-0025S 42002-0025S
6High Limit Switch 1 474171Z 474171Z 474171Z
7 Thermistor 1 42001-0053S 42001-0053S 42001-0053S
8Terminal Board 1
1
1
42001-0056S 42001-0056S 42001-0056S
9 Fireman’sSwitch Fuse (31.75 mm X 6.35 mm) 32850-0099 32850-0099 32850-0099
10 Ignition Control Module 1 476224 476224 476224
11 Transformer,120/240V 1 42001-0107S 42001-0107S 42001-0107S
12 Air Flow Switch 42001-0061S 42001-0061S 42001-0061S
13
1
12
Fenwal
19b
19a
19a Inlet Temperature Control Switch (1/8” thread) 474363Z 474363Z 474363Z
19b Inlet Temperature Control Switch (1/4” thread) 475147Z 475147Z 475147Z
Kit Includes: RS 485 control board, RS485 membrane pad and flame current wire.
*
1
1
1
• Heater Wiring Harness - 120/240V 1 461108 461108 461108
• 120/240 Volt Plug Kit 42001-0105S 42001-0105S 42001-0105S
16 Heater Top 42002-0034Z 42002-0034Z 42002-0034Z
17 Membrane Pad (NA, LP Series) 472610Z 472610Z 472610Z
18 Stack Flue Sensor 1 42002-0024S 42002-0024S 42002-0024S
RS 485 membrane pad (NA & LP) 1 461106 461106 46110614/15
*
1
1
Legacy
461105 461105 461105
RS485 Control board & Membrane Pad Combo Kit.
Legacy RS 485 conversion Combo kit 1 462049 462049 462049•
Section 5. Replacement Parts