HHT 060-521A
HHT On/Off Rocker Switch (060-521A) Instruction Manual
Brand: HHT | Model: 060-521A
Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of the HHT On/Off Rocker Switch, model 060-521A. This switch is designed as a replacement part for various HHT, Quadra-Fire, Heatilator, and Heat N Glo gas fireplaces, stoves, and inserts, compatible with both Natural Gas (NG) and Liquid Propane (LP) units. Please read this manual thoroughly before installation and use to ensure safe and proper functionality.
Important Safety Information
WARNING: Always disconnect power to the appliance before performing any installation, maintenance, or troubleshooting. Failure to do so may result in electric shock, fire, or serious injury.
- Ensure all local codes and regulations are followed during installation.
- Only qualified personnel should perform electrical work.
- Do not operate the appliance if any part is submerged in water.
- Keep packaging materials away from children.
Setup and Installation
1. Pre-Installation Checklist
- Verify that the HHT On/Off Rocker Switch (060-521A) is the correct replacement part for your appliance model. Refer to the compatibility list in the product description.
- Gather necessary tools: screwdriver, wire stripper/crimper (if needed), electrical tape.
- Ensure the appliance is completely cool and disconnected from all power sources (gas and electrical).
2. Installation Steps
- Access the Existing Switch: Locate the existing on/off rocker switch on your fireplace, stove, or insert. This may require removing a control panel or access cover.
- Disconnect Wiring: Carefully note the wiring configuration of the old switch. The 060-521A switch has four connections; typically, the top and bottom connectors are used for standard ON/OFF operation. The middle two connections are for use with a remote or wall switch, if applicable. Disconnect the wires from the old switch.
- Remove Old Switch: Gently unclip or remove the old rocker switch from its mounting location.
- Install New Switch: Insert the new HHT On/Off Rocker Switch (060-521A) into the opening. Ensure it snaps securely into place.
- Connect Wiring: Connect the wires to the new switch, replicating the configuration of the old switch. Ensure all connections are secure. If using for basic ON/OFF, connect to the top and bottom terminals.
- Secure and Test: Replace any removed covers or panels. Reconnect power to the appliance and test the switch functionality.

Figure 1: HHT On/Off Rocker Switch (060-521A) with pre-attached wires. Note the four terminals for connection.

Figure 2: Close-up view of the rocker switch, clearly showing the "ON" and "OFF" positions.
Operating Instructions
The HHT On/Off Rocker Switch (060-521A) provides simple and direct control over your gas fireplace, stove, or insert. Once properly installed and power is restored to the appliance:
- To turn the appliance ON, press the side of the rocker switch labeled "ON" or push the switch to the "ON" position. The appliance should ignite and begin operating according to its design.
- To turn the appliance OFF, press the side of the rocker switch labeled "OFF" or push the switch to the "OFF" position. The flames should extinguish, and the appliance should cease operation.
For appliances with additional controls (e.g., thermostat, remote control), the rocker switch typically acts as a master power switch. Ensure the rocker switch is in the "ON" position for other controls to function.
Maintenance
The HHT On/Off Rocker Switch (060-521A) is designed for durability and requires minimal maintenance. However, periodic inspection can help ensure its longevity and proper function.
- Cleaning: If the switch becomes dusty or dirty, gently wipe it with a dry, soft cloth. Do not use liquid cleaners or abrasive materials, as these can damage the switch or its labels.
- Inspection: Periodically inspect the switch for any signs of physical damage, loose connections, or excessive wear. Ensure the rocker mechanism moves smoothly between ON and OFF positions.
- Professional Check: If you notice any unusual behavior or suspect a malfunction, consult a qualified service technician.
Troubleshooting
If your appliance is not responding correctly to the HHT On/Off Rocker Switch, consider the following common issues and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Appliance does not turn ON when switch is in "ON" position. |
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| Appliance does not turn OFF when switch is in "OFF" position. |
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| Switch feels loose or wobbly. | Improper seating in the mounting hole. | DISCONNECT POWER FIRST. Re-seat the switch firmly into its mounting hole until it clicks into place. |
If troubleshooting steps do not resolve the issue, it is recommended to contact a certified technician for further assistance.
Specifications
| Feature | Detail |
|---|---|
| Model Number | 060-521A |
| Brand | HHT |
| Operation Mode | ON-OFF |
| Contact Type | Normally Open |
| Connector Type | Molex |
| Terminal Type | Screw |
| Circuit Type | 1-way |
| Mounting Type | Surface Mount |
| Actuator Type | Rocker |
| Contact Material | Brass |
| International Protection Rating | IP54 |
| Package Dimensions | 6.14 x 5.39 x 0.47 inches |
| Item Weight | 0.01 ounces |
| Date First Available | December 23, 2018 |
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