HVACopediaHeat & Glow · Gas fireplace · Ignition
Direct spark ignition with lockout
What happens, in order
- Power is supplied at 110/120 VAC through the junction box and On/Off switch; the module LED flashes slowly with no call for heat
- Call for heat the LED flashes fast and the igniter sparks at the pilot
- Spark continues only for the trial period; if the pilot does not light and prove, the module locks out
- Two LED flashes mean a 5 minute lockout; reset with the On/Off switch or breaker
- A steady LED flash means a hard lockout - control failure
- Check the high-limit switch where fitted (normally open); an open limit stops operation
Timings and thresholds
| Item | Value |
|---|---|
| Spark trial RAM 1MC1-01 | 4 s |
| Spark trial RAM 1MC1-05 | 7 s |
| Soft lockout | 5 min |
| LED: no call / call / lockout / hard lockout | Slow flash / fast flash / two flashes / steady |
Applies to: Heat & Glow DSI fireplaces with RAM 1MC1-01/-05 and Fenwal 24 V (Triton 2460D) modules
Models
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Source: Heat & Glow DSI troubleshooting guide (DSI manual bw), Sections 1 and 4. Written in our own words; timings can differ by model and software version, so check the manual for your exact unit.
For licensed technicians. Gas, electrical and refrigerant work must be done by a qualified, licensed person. Shut off power and gas before servicing, never bypass a safety control, and follow the manufacturer’s manual for the exact model; it and local codes always take priority. HVACopedia is not affiliated with any manufacturer; brand and model names only identify the equipment.