Coates 29034620: Heater Indicator Light
Product Overview
As a retailer of hot tub spare parts, I’m featuring the Coates Indicator Light, a specialized lighting component designed for Coates heater systems. This OEM indicator provides visual confirmation of heater operation status.
Key Features
- Coates OEM compatibility
- Professional-grade construction
- Visual status indication
- Direct replacement design
- Durable components
- Easy installation
Technical Specifications
| Specification | Detail |
|---|---|
| Model Number | 29034620 |
| Brand | Coates |
| Type | Indicator Light |
| Application | Heater Systems |
| Design | OEM Replacement |
| Compatibility | Coates Heaters |
Exploded parts diagram: This part is shown as item #9 on the Coates CE/CPH/PHS Series Heater Replacement Parts exploded parts diagram.
🔧 Coates CE/CPH/PHS Series Heater Replacement Parts – exploded parts diagram

The numbered parts below make up this assembly. Parts we stock are linked – click any to view.
| No. | Part |
|---|---|
| – | _32018CE |
| – | _32024CPH |
| – | 46-225-1014 |
| – | 46-225-1016 |
| – | 46-225-1018 |
| – | 46-225-1020 |
| – | 46-225-1022 |
| – | 46-225-1024 |
| – | 46-225-1026 |
| – | 46-225-1028 |
| – | 46-225-1030 |
| – | 46-225-1032 |
| – | 46-225-1034 |
| – | 46-225-1036 |
| – | 46-225-1038 |
| – | 46-225-1040 |
| – | 46-225-1044 |
| – | 46-225-1050 |
| – | 46-225-1052 |
| – | 46-225-1054 |
| – | 46-225-1056 |
| – | 46-225-1058 |
| – | 46-225-1060 |
| – | 46-225-1062 |
| – | 46-225-1064 |
| – | 46-225-1066 |
| – | 46-225-1068 |
| – | _12412CE |
| – | _12415CE |
| 18 | Time Delay Fuse, Coates, 60A, 480v, SC |
| 17 | Contactor, Coates, 3P, 40A, 208v |
| 16 | Contactor, Coates, 4 pole, 50 amp, 208/240V coil |
| 14 | Relay, Coates, 240V, Q-12DS Flow Switch |
| 13 | Coates Gasket, Cph, Phs, Ce |
| 12 | 46-225-W001K12 |
| 11 | Hi-Limit,5/16" dia,12"Cap,SPST,Screw Terminal,Coates 61L/E-6 |
| 10 | Rocker Switch, Coates, SPDT, 230v, Lighted, OEM |
| 9 | Indicator Light, Coates ◀ this part |
| 8 | Coates Heater Thermostat #22002150 |
| 7 | Transformer Coates, 480v, 240v, 50va |
| 6 | FLOW SWITCH FROM COATES #23000105 |
| 2 | Light Bonding Lug, American Products, Aqualumin/II |
| 1 | Terminal Block, HydroQuip, Screw, 2-14AWG |
Application Uses
Designed for indicating:
- Heater operation status
- System power indication
- Operating conditions
- Visual monitoring
Design Benefits
Professional features include:
- Clear visibility
- Simple replacement
- Reliable operation
- Quality construction
Installation Features
OEM design provides:
- Direct fit replacement
- Standard connections
- Straightforward installation
- Secure mounting












